Merge pull request #198 from rmulley/travis-go-1.8

TravisCI Updates
Merge branch 'v1' into travis-go-1.8
2017-07-09 11:00:29 -07:00 · 2017-07-09 10:59:35 -07:00 · 2017-05-09 10:37:06 -07:00 · 2017-05-09 09:54:37 +01:00 · 2017-05-06 16:25:42 -07:00 · 2017-05-06 16:18:32 -07:00
249 changed files with 5359 additions and 14245 deletions
@@ -1,13 +0,0 @@
-# Project
-FAQ.md
-README.md
-LICENSE
-Makefile
-.gitignore
-.travis.yml
-CONTRIBUTING.md
-MIGRATIONS.md
-docker-deploy.sh
-
-# Golang
-testing
@@ -1,39 +0,0 @@
---
-name: Bug report
-about: Create a report to help us improve
-
---
-
-**Describe the Bug**
-A clear and concise description of what the bug is.
-
-**Steps to Reproduce**
-Steps to reproduce the behavior:
-1. My migrations look like '...'
-2. I ran migrate with the following options '....'
-3. See error
-
-**Expected Behavior**
-A clear and concise description of what you expected to happen.
-
-**Migrate Version**
-e.g. v3.4.0
-Obtained by running: `migrate -version`
-
-**Loaded Source Drivers**
-e.g. s3, github, go-bindata, gcs, file
-Obtained by running: `migrate -help`
-
-**Loaded Database Drivers**
-e.g. spanner, stub, clickhouse, cockroachdb, crdb-postgres, postgres, postgresql, redshift, cassandra, cockroach, mysql
-Obtained by running: `migrate -help`
-
-**Go Version**
-e.g. go version go1.11 linux/amd64
-Obtained by running: `go version`
-
-**Stacktrace**
-Please provide if available
-
-**Additional context**
-Add any other context about the problem here.
@@ -1,17 +0,0 @@
---
-name: Feature request
-about: Suggest an idea for this project
-
---
-
-**Is your feature request related to a problem? Please describe.**
-A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
-
-**Describe the solution you'd like**
-A clear and concise description of what you want to happen.
-
-**Describe alternatives you've considered**
-A clear and concise description of any alternative solutions or features you've considered.
-
-**Additional context**
-Add any other context or screenshots about the feature request here.
@@ -1,7 +1,2 @@
 .DS_Store
-cli/build
-cli/cli
-cli/migrate
-.coverage
-.godoc.pid
-vendor/
+test.db
@@ -1,131 +1,21 @@
 language: go
 sudo: required

-matrix:
-  allow_failures:
-    - go: master
-  include:
-    # Supported versions of Go: https://golang.org/dl/
-    - go: "1.10.x"
-    - go: "1.11.x"
-    - go: master
-
-go_import_path: github.com/golang-migrate/migrate
-
-env:
-  global:
-    - GO111MODULE=on
-    - MIGRATE_TEST_CONTAINER_BOOT_TIMEOUT=60
-    - DOCKER_USERNAME=golangmigrate
-    -   secure: "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"
+go:
+  - 1.4.x
+  - 1.5.x
+  - 1.6.x
+  - 1.7.x
+  - 1.8.x

 services:
  - docker

-cache:
-  directories:
-    - $GOPATH/pkg
-
 before_install:
-  - echo "TRAVIS_GO_VERSION=${TRAVIS_GO_VERSION}"
-  # Download the binary to bin folder in $GOPATH
-  - if [[ "${TRAVIS_GO_VERSION}" == 1.10* ]]; then curl -L -s https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 -o $GOPATH/bin/dep; fi
-  # Make the binary executable
-  - if [[ "${TRAVIS_GO_VERSION}" == 1.10* ]]; then chmod +x $GOPATH/bin/dep; fi
+    - curl -L https://github.com/docker/compose/releases/download/1.11.2/docker-compose-`uname -s`-`uname -m` > docker-compose
+    - chmod +x docker-compose
+    - sudo mv docker-compose /usr/local/bin
+    - sed -i -e 's/golang/golang:'"$TRAVIS_GO_VERSION"'/' docker-compose.yml

-install:
-  - if [[ "${TRAVIS_GO_VERSION}" == 1.10* ]]; then dep ensure -vendor-only; fi
-  - go get github.com/mattn/goveralls
-
-script:
-  - make test COVERAGE_DIR=/tmp/coverage
-
-after_success:
-  - goveralls -service=travis-ci -coverprofile /tmp/coverage/combined.txt
-  - make list-external-deps > dependency_tree.txt && cat dependency_tree.txt
-  - make build-cli
-  - gem install --no-document fpm
-  - fpm -s dir -t deb -n migrate -v "$(git describe --tags 2>/dev/null | cut -c 2-)" --license MIT -m dhui@users.noreply.github.com --url https://github.com/golang-migrate/migrate --description='Database migrations' -a amd64 -p migrate.$(git describe --tags 2>/dev/null | cut -c 2-).deb --deb-no-default-config-files -f -C cli/build migrate.linux-amd64=/usr/local/bin/migrate
-
-deploy:
-  - provider: releases
-    api_key:
-      secure: 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
-    skip_cleanup: true
-    on:
-      go: "1.11.x"
-      repo: golang-migrate/migrate
-      tags: true
-    file:
-      - cli/build/migrate.linux-amd64.tar.gz
-      - cli/build/migrate.darwin-amd64.tar.gz
-      - cli/build/migrate.windows-amd64.exe.tar.gz
-      - cli/build/sha256sum.txt
-      - dependency_tree.txt
-  - provider: packagecloud
-    repository: migrate
-    username: golang-migrate
-    token:
-      secure: aICwu3gJ1sJ1QVCD3elpg+Jxzt4P+Zj1uoh5f0sOwnjDNIZ4FwUT1cMrWloP8P2KD0iyCOawuZER27o/kQ21oX2OxHvQbYPReA2znLm7lHzCmypAAOHPxpgnQ4rMGHHJXd+OsxtdclGs67c+EbdBfoRRbK400Qz/vjPJEDeH4mh02ZHC2nw4Nk/wV4jjBIkIt9dGEx6NgOA17FCMa3MaPHlHeFIzU7IfTlDHbS0mCCYbg/wafWBWcbGqtZLWAYtJDmfjrAStmDLdAX5J5PsB7taGSGPZHmPmpGoVgrKt/tb9Xz1rFBGslTpGROOiO4CiMAvkEKFn8mxrBGjfSBqp7Dp3eeSalKXB1DJAbEXx2sEbMcvmnoR9o43meaAn+ZRts8lRL8S/skBloe6Nk8bx3NlJCGB9WPK1G56b7c/fZnJxQbrCw6hxDfbZwm8S2YPviFTo/z1BfZDhRsL74reKsN2kgnGo2W/k38vvzIpsssQ9DHN1b0TLCxolCNPtQ7oHcQ1ohcjP2UgYXk0FhqDoL+9LQva/DU4N9sKH0UbAaqsMVSErLeG8A4aauuFcVrWRBaDYyTag4dQqzTulEy7iru2kDDIBgSQ1gMW/yoBOIPK4oi6MtbTf1X39fzXFLS1cDd3LW61yAu3YrbjAetpfx2frIvrRAiL9TxWA1gnrs5o=
-    dist: ubuntu/xenial
-    package_glob: '*.deb'
-    skip_cleanup: true
-    on:
-      go: "1.11.x"
-      repo: golang-migrate/migrate
-      tags: true
-  - provider: packagecloud
-    repository: migrate
-    username: golang-migrate
-    token:
-      secure: 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
-    dist: ubuntu/bionic
-    package_glob: '*.deb'
-    skip_cleanup: true
-    on:
-      go: "1.11.x"
-      repo: golang-migrate/migrate
-      tags: true
-  - provider: packagecloud
-    repository: migrate
-    username: golang-migrate
-    token:
-      secure: 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
-    dist: ubuntu/cosmic
-    package_glob: '*.deb'
-    skip_cleanup: true
-    on:
-      go: "1.11.x"
-      repo: golang-migrate/migrate
-      tags: true
-  - provider: packagecloud
-    repository: migrate
-    username: golang-migrate
-    token:
-      secure: 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
-    dist: debian/stretch
-    package_glob: '*.deb'
-    skip_cleanup: true
-    on:
-      go: "1.11.x"
-      repo: golang-migrate/migrate
-      tags: true
-  - provider: packagecloud
-    repository: migrate
-    username: golang-migrate
-    token:
-      secure: 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
-    dist: debian/buster
-    package_glob: '*.deb'
-    skip_cleanup: true
-    on:
-      go: "1.11.x"
-      repo: golang-migrate/migrate
-      tags: true
-  - provider: script
-    script: ./docker-deploy.sh
-    skip_cleanup: true
-    on:
-      go: "1.11.x"
-      repo: golang-migrate/migrate
-      tags: true
+      
+script: make test
@@ -1,22 +0,0 @@
-# Development, Testing and Contributing
-
-  1. Make sure you have a running Docker daemon
-     (Install for [MacOS](https://docs.docker.com/docker-for-mac/))
-  1. Use a version of Go that supports [modules](https://golang.org/cmd/go/#hdr-Modules__module_versions__and_more) (e.g. Go 1.11+)
-  1. Fork this repo and `git clone` somewhere to `$GOPATH/src/github.com/golang-migrate/migrate`
-      * Ensure that [Go modules are enabled](https://golang.org/cmd/go/#hdr-Preliminary_module_support) (e.g. your repo path or the `GO111MODULE` environment variable are set correctly)
-  1. Confirm tests are working: `make test-short`
-  1. Write awesome code ...
-  1. `make test` to run all tests against all database versions
-  1. Push code and open Pull Request
- 
-Some more helpful commands:
-
-  * You can specify which database/ source tests to run:
-    `make test-short SOURCE='file go_bindata' DATABASE='postgres cassandra'`
-  * After `make test`, run `make html-coverage` which opens a shiny test coverage overview.
-  * `make build-cli` builds the CLI in directory `cli/build/`.
-  * `make list-external-deps` lists all external dependencies for each package
-  * `make docs && make open-docs` opens godoc in your browser, `make kill-docs` kills the godoc server.
-    Repeatedly call `make docs` to refresh the server.
-  * Set the `DOCKER_API_VERSION` environment variable to the latest supported version if you get errors regarding the docker client API version being too new.
@@ -1,23 +1,3 @@
-FROM golang:1.11-alpine3.8 AS downloader
-ARG VERSION
-
-RUN apk add --no-cache git gcc musl-dev
-
-WORKDIR /go/src/github.com/golang-migrate/migrate
-
-COPY . ./
-
-ENV GO111MODULE=on
-ENV DATABASES="postgres mysql redshift cassandra spanner cockroachdb clickhouse"
-ENV SOURCES="file go_bindata github aws_s3 google_cloud_storage"
-
-RUN go build -a -o build/migrate.linux-386 -ldflags="-X main.Version=${VERSION}" -tags "$DATABASES $SOURCES" ./cmd/migrate
-
-FROM alpine:3.8
-
-RUN apk add --no-cache ca-certificates
-
-COPY --from=downloader /go/src/github.com/golang-migrate/migrate/build/migrate.linux-386 /migrate
-
+FROM scratch
+ADD migrate /migrate
 ENTRYPOINT ["/migrate"]
-CMD ["--help"]
@@ -1,70 +0,0 @@
-# FAQ
-
-#### How is the code base structured?
-  ```
-  /          package migrate (the heart of everything)
-  /cli       the CLI wrapper
-  /database  database driver and sub directories have the actual driver implementations
-  /source    source driver and sub directories have the actual driver implementations
-  ```
-
-#### Why is there no `source/driver.go:Last()`?
-  It's not needed. And unless the source has a "native" way to read a directory in reversed order,
-  it might be expensive to do a full directory scan in order to get the last element.
-
-#### What is a NilMigration? NilVersion?
-  NilMigration defines a migration without a body. NilVersion is defined as const -1.
-
-#### What is the difference between uint(version) and int(targetVersion)?
-  version refers to an existing migration version coming from a source and therefor can never be negative.
-  targetVersion can either be a version OR represent a NilVersion, which equals -1.
-
-#### What's the difference between Next/Previous and Up/Down?
-  ```
-  1_first_migration.up.extension           next ->  2_second_migration.up.extension      ...
-  1_first_migration.down.extension  <- previous     2_second_migration.down.extension    ...
-  ```
-
-#### Why two separate files (up and down) for a migration?
-  It makes all of our lives easier. No new markup/syntax to learn for users
-  and existing database utility tools continue to work as expected.
-
-#### How many migrations can migrate handle?
-  Whatever the maximum positive signed integer value is for your platform.
-  For 32bit it would be 2,147,483,647 migrations. Migrate only keeps references to
-  the currently run and pre-fetched migrations in memory. Please note that some
-  source drivers need to do build a full "directory" tree first, which puts some
-  heat on the memory consumption.
-
-#### Are the table tests in migrate_test.go bloated?
-  Yes and no. There are duplicate test cases for sure but they don't hurt here. In fact
-  the tests are very visual now and might help new users understand expected behaviors quickly.
-  Migrate from version x to y and y is the last migration? Just check out the test for
-  that particular case and know what's going on instantly.
-
-#### What is Docker being used for?
-  Only for testing. See [testing/docker.go](testing/docker.go)
-
-#### Why not just use docker-compose?
-  It doesn't give us enough runtime control for testing. We want to be able to bring up containers fast
-  and whenever we want, not just once at the beginning of all tests.
-
-#### Can I maintain my driver in my own repository?
-  Yes, technically thats possible. We want to encourage you to contribute your driver to this respository though.
-  The driver's functionality is dictated by migrate's interfaces. That means there should really
-  just be one driver for a database/ source. We want to prevent a future where several drivers doing the exact same thing,
-  just implemented a bit differently, co-exist somewhere on Github. If users have to do research first to find the
-  "best" available driver for a database in order to get started, we would have failed as an open source community.
-
-#### Can I mix multiple sources during a batch of migrations?
-  No.
-
-#### What does "dirty" database mean?
-  Before a migration runs, each database sets a dirty flag. Execution stops if a migration fails and the dirty state persists,
-  which prevents attempts to run more migrations on top of a failed migration. You need to manually fix the error
-  and then "force" the expected version.
-
-#### What happens if two programs try and update the database at the same time?
-Database-specific locking features are used by *some* database drivers to prevent multiple instances of migrate from running migrations at the same time
-  the same database at the same time. For example, the MySQL driver uses the `GET_LOCK` function, while the Postgres driver uses
-  the `pg_advisory_lock` function.
@@ -1,828 +0,0 @@
-# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
-
-
-[[projects]]
-  digest = "1:4a799555f4a58b849ca3a3bed67c10ca484a2d3cedf4199773211d04b0109793"
-  name = "cloud.google.com/go"
-  packages = [
-    "civil",
-    "compute/metadata",
-    "iam",
-    "internal",
-    "internal/atomiccache",
-    "internal/fields",
-    "internal/optional",
-    "internal/protostruct",
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-  pruneopts = "UT"
-  revision = "e1e72e9de974bd926e5c56f83753fba2df402ce5"
-  version = "v1.3.0"
-
-[[projects]]
-  branch = "master"
-  digest = "1:40fdfd6ab85ca32b6935853bbba35935dcb1d796c8135efd85947566c76e662e"
-  name = "github.com/xdg/scram"
-  packages = ["."]
-  pruneopts = "UT"
-  revision = "7eeb5667e42c09cb51bf7b7c28aea8c56767da90"
-
-[[projects]]
-  branch = "master"
-  digest = "1:f5c1d04bc09c644c592b45b9f0bad4030521b1a7d11c7dadbb272d9439fa6e8e"
-  name = "github.com/xdg/stringprep"
-  packages = ["."]
-  pruneopts = "UT"
-  revision = "73f8eece6fdcd902c185bf651de50f3828bed5ed"
-
-[[projects]]
-  digest = "1:8e7fcf54cc7c0c3aba7801812ae70343585b3cb663f6cb11ad50c0c28552f359"
-  name = "go.opencensus.io"
-  packages = [
-    ".",
-    "internal",
-    "internal/tagencoding",
-    "plugin/ocgrpc",
-    "plugin/ochttp",
-    "plugin/ochttp/propagation/b3",
-    "stats",
-    "stats/internal",
-    "stats/view",
-    "tag",
-    "trace",
-    "trace/internal",
-    "trace/propagation",
-    "trace/tracestate",
-  ]
-  pruneopts = "UT"
-  revision = "79993219becaa7e29e3b60cb67f5b8e82dee11d6"
-  version = "v0.17.0"
-
-[[projects]]
-  branch = "master"
-  digest = "1:9ff2b9f8d4e47013a213b9ea0d850ed787c51f5eab2038842d82397ad85a19c1"
-  name = "golang.org/x/crypto"
-  packages = [
-    "pbkdf2",
-    "ssh/terminal",
-  ]
-  pruneopts = "UT"
-  revision = "8d7daa0c54b357f3071e11eaef7efc4e19a417e2"
-
-[[projects]]
-  branch = "master"
-  digest = "1:56975096c005d57a2c9c2faefbec772c44c29c084af35facbfca85961469ff6d"
-  name = "golang.org/x/net"
-  packages = [
-    "context",
-    "context/ctxhttp",
-    "http/httpguts",
-    "http2",
-    "http2/hpack",
-    "idna",
-    "internal/socks",
-    "internal/timeseries",
-    "proxy",
-    "trace",
-  ]
-  pruneopts = "UT"
-  revision = "49bb7cea24b1df9410e1712aa6433dae904ff66a"
-
-[[projects]]
-  branch = "master"
-  digest = "1:39273b3e6c96fed52bd8f7793fc463c40b1a27a7caa51302b81d45306b9646b4"
-  name = "golang.org/x/oauth2"
-  packages = [
-    ".",
-    "google",
-    "internal",
-    "jws",
-    "jwt",
-  ]
-  pruneopts = "UT"
-  revision = "c57b0facaced709681d9f90397429b9430a74754"
-
-[[projects]]
-  branch = "master"
-  digest = "1:75515eedc0dc2cb0b40372008b616fa2841d831c63eedd403285ff286c593295"
-  name = "golang.org/x/sync"
-  packages = ["semaphore"]
-  pruneopts = "UT"
-  revision = "37e7f081c4d4c64e13b10787722085407fe5d15f"
-
-[[projects]]
-  branch = "master"
-  digest = "1:f5aa274a0377f85735edc7fedfb0811d3cbc20af91633797cb359e29c3272271"
-  name = "golang.org/x/sys"
-  packages = [
-    "unix",
-    "windows",
-  ]
-  pruneopts = "UT"
-  revision = "fa43e7bc11baaae89f3f902b2b4d832b68234844"
-
-[[projects]]
-  digest = "1:a2ab62866c75542dd18d2b069fec854577a20211d7c0ea6ae746072a1dccdd18"
-  name = "golang.org/x/text"
-  packages = [
-    "collate",
-    "collate/build",
-    "internal/colltab",
-    "internal/gen",
-    "internal/tag",
-    "internal/triegen",
-    "internal/ucd",
-    "language",
-    "secure/bidirule",
-    "transform",
-    "unicode/bidi",
-    "unicode/cldr",
-    "unicode/norm",
-    "unicode/rangetable",
-  ]
-  pruneopts = "UT"
-  revision = "f21a4dfb5e38f5895301dc265a8def02365cc3d0"
-  version = "v0.3.0"
-
-[[projects]]
-  branch = "master"
-  digest = "1:fc393bc931c39e70d322b5158a90ef38e1a1617afdffb4efaaa4567f5c4f0410"
-  name = "golang.org/x/tools"
-  packages = [
-    "godoc/vfs",
-    "godoc/vfs/mapfs",
-  ]
-  pruneopts = "UT"
-  revision = "8919434dde1e35f7b9ef589ecb80ec0833f021bc"
-
-[[projects]]
-  branch = "master"
-  digest = "1:c8a31b4403741a053bf08594b91189ec63c96b041bdfddef06a272f42549f2cf"
-  name = "google.golang.org/api"
-  packages = [
-    "gensupport",
-    "googleapi",
-    "googleapi/internal/uritemplates",
-    "googleapi/transport",
-    "internal",
-    "iterator",
-    "option",
-    "storage/v1",
-    "transport",
-    "transport/grpc",
-    "transport/http",
-    "transport/http/internal/propagation",
-  ]
-  pruneopts = "UT"
-  revision = "625cd1887957946515db468ce519bb71fa31fc7f"
-
-[[projects]]
-  digest = "1:d2cfb607095cee410f25a3c04eed77f76c4721d1bb0cbc894f5d8624b33394c8"
-  name = "google.golang.org/appengine"
-  packages = [
-    ".",
-    "cloudsql",
-    "internal",
-    "internal/app_identity",
-    "internal/base",
-    "internal/datastore",
-    "internal/log",
-    "internal/modules",
-    "internal/remote_api",
-    "internal/socket",
-    "internal/urlfetch",
-    "socket",
-    "urlfetch",
-  ]
-  pruneopts = "UT"
-  revision = "ae0ab99deb4dc413a2b4bd6c8bdd0eb67f1e4d06"
-  version = "v1.2.0"
-
-[[projects]]
-  branch = "master"
-  digest = "1:315f8fe35ad73727d15b20fc3a533e7ab9ea8f0c3ff6441753d04086e5ca5003"
-  name = "google.golang.org/genproto"
-  packages = [
-    "googleapis/api/annotations",
-    "googleapis/iam/v1",
-    "googleapis/longrunning",
-    "googleapis/rpc/code",
-    "googleapis/rpc/errdetails",
-    "googleapis/rpc/status",
-    "googleapis/spanner/admin/database/v1",
-    "googleapis/spanner/v1",
-  ]
-  pruneopts = "UT"
-  revision = "af9cb2a35e7f169ec875002c1829c9b315cddc04"
-
-[[projects]]
-  digest = "1:4ad047d772a7d4841687df9534a767a9e243885ed6d7d2ced6af5995a5dc44b3"
-  name = "google.golang.org/grpc"
-  packages = [
-    ".",
-    "balancer",
-    "balancer/base",
-    "balancer/roundrobin",
-    "codes",
-    "connectivity",
-    "credentials",
-    "credentials/oauth",
-    "encoding",
-    "encoding/proto",
-    "grpclog",
-    "internal",
-    "internal/backoff",
-    "internal/channelz",
-    "internal/envconfig",
-    "internal/grpcrand",
-    "internal/transport",
-    "keepalive",
-    "metadata",
-    "naming",
-    "peer",
-    "resolver",
-    "resolver/dns",
-    "resolver/passthrough",
-    "stats",
-    "status",
-    "tap",
-  ]
-  pruneopts = "UT"
-  revision = "8dea3dc473e90c8179e519d91302d0597c0ca1d1"
-  version = "v1.15.0"
-
-[[projects]]
-  digest = "1:2d1fbdc6777e5408cabeb02bf336305e724b925ff4546ded0fa8715a7267922a"
-  name = "gopkg.in/inf.v0"
-  packages = ["."]
-  pruneopts = "UT"
-  revision = "d2d2541c53f18d2a059457998ce2876cc8e67cbf"
-  version = "v0.9.1"
-
-[solve-meta]
-  analyzer-name = "dep"
-  analyzer-version = 1
-  input-imports = [
-    "cloud.google.com/go/spanner",
-    "cloud.google.com/go/spanner/admin/database/apiv1",
-    "cloud.google.com/go/storage",
-    "github.com/aws/aws-sdk-go/aws",
-    "github.com/aws/aws-sdk-go/aws/session",
-    "github.com/aws/aws-sdk-go/service/s3",
-    "github.com/aws/aws-sdk-go/service/s3/s3iface",
-    "github.com/cockroachdb/cockroach-go/crdb",
-    "github.com/cznic/ql/driver",
-    "github.com/dhui/dktest",
-    "github.com/docker/docker/api/types",
-    "github.com/docker/docker/api/types/container",
-    "github.com/docker/docker/api/types/network",
-    "github.com/docker/docker/client",
-    "github.com/fsouza/fake-gcs-server/fakestorage",
-    "github.com/go-sql-driver/mysql",
-    "github.com/gocql/gocql",
-    "github.com/google/go-github/github",
-    "github.com/hashicorp/go-multierror",
-    "github.com/kshvakov/clickhouse",
-    "github.com/lib/pq",
-    "github.com/mattn/go-sqlite3",
-    "github.com/mongodb/mongo-go-driver/bson",
-    "github.com/mongodb/mongo-go-driver/mongo",
-    "github.com/mongodb/mongo-go-driver/x/network/connstring",
-    "golang.org/x/net/context",
-    "golang.org/x/tools/godoc/vfs",
-    "golang.org/x/tools/godoc/vfs/mapfs",
-    "google.golang.org/api/iterator",
-    "google.golang.org/genproto/googleapis/spanner/admin/database/v1",
-  ]
-  solver-name = "gps-cdcl"
-  solver-version = 1
@@ -1,110 +0,0 @@
-# Gopkg.toml example
-#
-# Refer to https://golang.github.io/dep/docs/Gopkg.toml.html
-# for detailed Gopkg.toml documentation.
-#
-# required = ["github.com/user/thing/cmd/thing"]
-# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
-#
-# [[constraint]]
-#   name = "github.com/user/project"
-#   version = "1.0.0"
-#
-# [[constraint]]
-#   name = "github.com/user/project2"
-#   branch = "dev"
-#   source = "github.com/myfork/project2"
-#
-# [[override]]
-#   name = "github.com/x/y"
-#   version = "2.4.0"
-#
-# [prune]
-#   non-go = false
-#   go-tests = true
-#   unused-packages = true
-
-
-[[constraint]]
-  name = "github.com/aws/aws-sdk-go"
-  version = "1.15.34"
-
-[[constraint]]
-  branch = "master"
-  name = "github.com/cockroachdb/cockroach-go"
-
-[[constraint]]
-  name = "github.com/cznic/ql"
-  version = "1.2.0"
-
-[[constraint]]
-  name = "github.com/docker/docker"
-  revision = "453f2b8b40b923862ce1c08c11531ff5042770f1"
-
-[[constraint]]
-  name = "github.com/fsouza/fake-gcs-server"
-  version = "1.2.0"
-
-[[constraint]]
-  name = "github.com/go-sql-driver/mysql"
-  version = "v1.4.0"
-
-[[constraint]]
-  branch = "master"
-  name = "github.com/gocql/gocql"
-
-[[constraint]]
-  name = "github.com/google/go-github"
-  version = "17.0.0"
-
-[[constraint]]
-  name = "github.com/kshvakov/clickhouse"
-  version = "1.3.4"
-
-[[constraint]]
-  name = "github.com/lib/pq"
-  version = "1.0.0"
-
-[[constraint]]
-  name = "github.com/mattn/go-sqlite3"
-  version = "1.9.0"
-
-[[constraint]]
-  branch = "master"
-  name = "golang.org/x/net"
-
-[[constraint]]
-  branch = "master"
-  name = "google.golang.org/api"
-
-[[constraint]]
-  branch = "master"
-  name = "google.golang.org/genproto"
-
-[[constraint]]
-  name = "github.com/mongodb/mongo-go-driver"
-  version = "0.1.0"
-
-[[override]]
-  name = "cloud.google.com/go"
-  version = "0.27.0"
-
-[[override]]
-  branch = "master"
-  name = "golang.org/x/tools"
-
-[[override]]
-  branch = "master"
-  name = "github.com/docker/distribution"
-
-[prune]
-  go-tests = true
-  unused-packages = true
-
-[[constraint]]
-  name = "github.com/dhui/dktest"
-  version = "0.3.0"
-
-[[constraint]]
-  name = "github.com/hashicorp/go-multierror"
-  version = "1.0.0"
@@ -1,13 +1,6 @@
 The MIT License (MIT)

-Original Work
-Copyright (c) 2016 Matthias Kadenbach
-https://github.com/mattes/migrate
-
-Modified Work
-Copyright (c) 2018 Dale Hui
-https://github.com/golang-migrate/migrate
-
+Copyright (c) 2014 Matthias Kadenbach

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -25,4 +18,4 @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
+THE SOFTWARE.
@@ -1,81 +0,0 @@
-# Migrations
-
-## Migration Filename Format
-
-A single logical migration is represented as two separate migration files, one
-to migrate "up" to the specified version from the previous version, and a second
-to migrate back "down" to the previous version.  These migrations can be provided
-by any one of the supported [migration sources](./README.md#migration-sources).
-
-The ordering and direction of the migration files is determined by the filenames
-used for them.  `migrate` expects the filenames of migrations to have the format:
-
-    {version}_{title}.up.{extension}
-    {version}_{title}.down.{extension}
-
-The `title` of each migration is unused, and is only for readability.  Similarly,
-the `extension` of the migration files is not checked by the library, and should
-be an appropriate format for the database in use (`.sql` for SQL variants, for
-instance).
-
-Versions of migrations may be represented as any 64 bit unsigned integer.
-All migrations are applied upward in order of increasing version number, and
-downward by decreasing version number.
-
-Common versioning schemes include incrementing integers:
-
-    1_initialize_schema.down.sql
-    1_initialize_schema.up.sql
-    2_add_table.down.sql
-    2_add_table.up.sql
-    ...
-
-Or timestamps at an appropriate resolution:
-
-    1500360784_initialize_schema.down.sql
-    1500360784_initialize_schema.up.sql
-    1500445949_add_table.down.sql
-    1500445949_add_table.up.sql
-    ...
-
-But any scheme resulting in distinct, incrementing integers as versions is valid.
-
-It is suggested that the version number of corresponding `up` and `down` migration
-files be equivalent for clarity, but they are allowed to differ so long as the
-relative ordering of the migrations is preserved.
-
-The migration files are permitted to be empty, so in the event that a migration
-is a no-op or is irreversible, it is recommended to still include both migration
-files, and either leaving them empty or adding a comment as appropriate.
-
-## Migration Content Format
-
-The format of the migration files themselves varies between database systems.
-Different databases have different semantics around schema changes and when and
-how they are allowed to occur
-(for instance, [if schema changes can occur within a transaction](https://wiki.postgresql.org/wiki/Transactional_DDL_in_PostgreSQL:_A_Competitive_Analysis)).
-
-As such, the `migrate` library has little to no checking around the format of
-migration sources.  The migration files are generally processed directly by the
-drivers as raw operations.
-
-## Reversibility of Migrations
-
-Best practice for writing schema migration is that all migrations should be
-reversible.  It should in theory be possible for run migrations down and back up
-through any and all versions with the state being fully cleaned and recreated
-by doing so.
-
-By adhering to this recommended practice, development and deployment of new code
-is cleaner and easier (cleaning database state for a new feature should be as
-easy as migrating down to a prior version, and back up to the latest).
-
-As opposed to some other migration libraries, `migrate` represents up and down
-migrations as separate files.  This prevents any non-standard file syntax from
-being introduced which may result in unintended behavior or errors, depending
-on what database is processing the file.
-
-While it is technically possible for an up or down migration to exist on its own
-without an equivalently versioned counterpart, it is strongly recommended to
-always include a down migration which cleans up the state of the corresponding
-up migration.
@@ -1,118 +1,30 @@
-SOURCE ?= file go_bindata github aws_s3 google_cloud_storage godoc_vfs
-DATABASE ?= postgres mysql redshift cassandra spanner cockroachdb clickhouse mongodb
-VERSION ?= $(shell git describe --tags 2>/dev/null | cut -c 2-)
-TEST_FLAGS ?=
-REPO_OWNER ?= $(shell cd .. && basename "$$(pwd)")
-COVERAGE_DIR ?= .coverage
-
-
-build-cli: clean
-	-mkdir ./cli/build
-	cd ./cmd/migrate && CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o ../../cli/build/migrate.linux-amd64 -ldflags='-X main.Version=$(VERSION) -extldflags "-static"' -tags '$(DATABASE) $(SOURCE)' .
-	cd ./cmd/migrate && CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -a -o ../../cli/build/migrate.darwin-amd64 -ldflags='-X main.Version=$(VERSION) -extldflags "-static"' -tags '$(DATABASE) $(SOURCE)' .
-	cd ./cmd/migrate && CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -a -o ../../cli/build/migrate.windows-amd64.exe -ldflags='-X main.Version=$(VERSION) -extldflags "-static"' -tags '$(DATABASE) $(SOURCE)' .
-	cd ./cli/build && find . -name 'migrate*' | xargs -I{} tar czf {}.tar.gz {}
-	cd ./cli/build && shasum -a 256 * > sha256sum.txt
-	cat ./cli/build/sha256sum.txt
+TESTFLAGS?=
+IMAGE=mattes/migrate
+DCR=docker-compose run --rm
+GOTEST=go test $(TESTFLAGS) `go list  ./... | grep -v "/vendor/"`

+.PHONY: clean test build release docker-build docker-push run
+all: release

 clean:
-	-rm -r ./cli/build
+	rm -f migrate

+fmt:
+	@gofmt -s -w `go list -f {{.Dir}} ./... | grep -v "/vendor/"`

-test-short:
-	make test-with-flags --ignore-errors TEST_FLAGS='-short'
+test: fmt
+	$(DCR) go-test

+go-test: fmt
+	@$(GOTEST)

-test:
-	@-rm -r $(COVERAGE_DIR)
-	@mkdir $(COVERAGE_DIR)
-	make test-with-flags TEST_FLAGS='-v -race -covermode atomic -coverprofile $$(COVERAGE_DIR)/_$$(RAND).txt -bench=. -benchmem -timeout 20m'
-	@echo 'mode: atomic' > $(COVERAGE_DIR)/combined.txt
-	@cat $(COVERAGE_DIR)/_*.txt | grep -v 'mode: atomic' >> $(COVERAGE_DIR)/combined.txt
+build:
+	$(DCR) go-build

+release: test build docker-build docker-push

-test-with-flags:
-	@echo SOURCE: $(SOURCE) 
-	@echo DATABASE: $(DATABASE)
-
-	@go test $(TEST_FLAGS) .
-	@go test $(TEST_FLAGS) ./cli/...
-	@go test $(TEST_FLAGS) ./database
-	@go test $(TEST_FLAGS) ./testing/...
-
-	@echo -n '$(SOURCE)' | tr -s ' ' '\n' | xargs -I{} go test $(TEST_FLAGS) ./source/{}
-	@go test $(TEST_FLAGS) ./source/testing/...
-	@go test $(TEST_FLAGS) ./source/stub/...
-
-	@echo -n '$(DATABASE)' | tr -s ' ' '\n' | xargs -I{} go test $(TEST_FLAGS) ./database/{}
-	@go test $(TEST_FLAGS) ./database/testing/...
-	@go test $(TEST_FLAGS) ./database/stub/...
-
-
-kill-orphaned-docker-containers:
-	docker rm -f $(shell docker ps -aq --filter label=migrate_test)
-
-
-html-coverage:
-	go tool cover -html=$(COVERAGE_DIR)/combined.txt
-
-
-list-external-deps:
-	$(call external_deps,'.')
-	$(call external_deps,'./cli/...')
-	$(call external_deps,'./testing/...')
-
-	$(foreach v, $(SOURCE), $(call external_deps,'./source/$(v)/...'))
-	$(call external_deps,'./source/testing/...')
-	$(call external_deps,'./source/stub/...')
-
-	$(foreach v, $(DATABASE), $(call external_deps,'./database/$(v)/...'))
-	$(call external_deps,'./database/testing/...')
-	$(call external_deps,'./database/stub/...')
-
-
-restore-import-paths:
-	find . -name '*.go' -type f -execdir sed -i '' s%\"github.com/$(REPO_OWNER)/migrate%\"github.com/mattes/migrate%g '{}' \;
-
-
-rewrite-import-paths:
-	find . -name '*.go' -type f -execdir sed -i '' s%\"github.com/mattes/migrate%\"github.com/$(REPO_OWNER)/migrate%g '{}' \;
-
-
-# example: fswatch -0 --exclude .godoc.pid --event Updated . | xargs -0 -n1 -I{} make docs
-docs:
-	-make kill-docs
-	nohup godoc -play -http=127.0.0.1:6064 </dev/null >/dev/null 2>&1 & echo $$! > .godoc.pid
-	cat .godoc.pid  
-
-
-kill-docs:
-	@cat .godoc.pid
-	kill -9 $$(cat .godoc.pid)
-	rm .godoc.pid
-
-
-open-docs:
-	open http://localhost:6064/pkg/github.com/$(REPO_OWNER)/migrate
-
-
-# example: make release V=0.0.0
-release:
-	git tag v$(V)
-	@read -p "Press enter to confirm and push to origin ..." && git push origin v$(V)
-
-
-define external_deps
-	@echo '-- $(1)';  go list -f '{{join .Deps "\n"}}' $(1) | grep -v github.com/$(REPO_OWNER)/migrate | xargs go list -f '{{if not .Standard}}{{.ImportPath}}{{end}}'
-
-endef
-
-
-.PHONY: build-cli clean test-short test test-with-flags html-coverage \
-        restore-import-paths rewrite-import-paths list-external-deps release \
-        docs kill-docs open-docs kill-orphaned-docker-containers
-
-SHELL = /bin/bash
-RAND = $(shell echo $$RANDOM)
+docker-build:
+	docker build --rm -t $(IMAGE) .

+docker-push:
+	docker push $(IMAGE)
@@ -1,170 +1,132 @@
-[![Build Status](https://img.shields.io/travis/com/golang-migrate/migrate/master.svg)](https://travis-ci.com/golang-migrate/migrate)
-[![GoDoc](https://godoc.org/github.com/golang-migrate/migrate?status.svg)](https://godoc.org/github.com/golang-migrate/migrate)
-[![Coverage Status](https://img.shields.io/coveralls/github/golang-migrate/migrate/master.svg)](https://coveralls.io/github/golang-migrate/migrate?branch=master)
-[![packagecloud.io](https://img.shields.io/badge/deb-packagecloud.io-844fec.svg)](https://packagecloud.io/golang-migrate/migrate?filter=debs)
-[![Docker Pulls](https://img.shields.io/docker/pulls/migrate/migrate.svg)](https://hub.docker.com/r/migrate/migrate/)
-![Supported Go Versions](https://img.shields.io/badge/Go-1.10%2C%201.11-lightgrey.svg)
-[![GitHub Release](https://img.shields.io/github/release/golang-migrate/migrate.svg)](https://github.com/golang-migrate/migrate/releases)
+# You are looking at a deprecated version. 
+# Use the [latest version](https://github.com/mattes/migrate) instead.

+---

 # migrate

-__Database migrations written in Go. Use as [CLI](#cli-usage) or import as [library](#use-in-your-go-project).__
+[![Build Status](https://travis-ci.org/mattes/migrate.svg?branch=v1)](https://travis-ci.org/mattes/migrate)

- * Migrate reads migrations from [sources](#migration-sources)
-   and applies them in correct order to a [database](#databases).
- * Drivers are "dumb", migrate glues everything together and makes sure the logic is bulletproof.
-   (Keeps the drivers lightweight, too.)
- * Database drivers don't assume things or try to correct user input. When in doubt, fail.
+A migration helper written in Go. Use it in your existing Golang code 
+or run commands via the CLI. 

-Forked from [mattes/migrate](https://github.com/mattes/migrate)
+```
+GoCode   import gopkg.in/mattes/migrate.v1/migrate
+CLI      go get -u gopkg.in/mattes/migrate.v1
+```

-## Databases
+__Features__

-Database drivers run migrations. [Add a new database?](database/driver.go)
+* Super easy to implement [Driver interface](http://godoc.org/gopkg.in/mattes/migrate.v1/driver#Driver).
+* Gracefully quit running migrations on ``^C``.
+* No magic search paths routines, no hard-coded config files.
+* CLI is build on top of the ``migrate package``.

-  * [PostgreSQL](database/postgres)
-  * [Redshift](database/redshift)
-  * [Ql](database/ql)
-  * [Cassandra](database/cassandra)
-  * [SQLite](database/sqlite3) ([todo #165](https://github.com/mattes/migrate/issues/165))
-  * [MySQL/ MariaDB](database/mysql)
-  * [Neo4j](database/neo4j) ([todo #167](https://github.com/mattes/migrate/issues/167))
-  * [MongoDB](database/mongodb)
-  * [CrateDB](database/crate) ([todo #170](https://github.com/mattes/migrate/issues/170))
-  * [Shell](database/shell) ([todo #171](https://github.com/mattes/migrate/issues/171))
-  * [Google Cloud Spanner](database/spanner)
-  * [CockroachDB](database/cockroachdb)
-  * [ClickHouse](database/clickhouse)

-### Database URLs
+## Available Drivers

-Database connection strings are specified via URLs. The URL format is driver dependent but generally has the form: `dbdriver://username:password@host:port/dbname?option1=true&option2=false`
+ * [PostgreSQL](driver/postgres)
+ * [Cassandra](driver/cassandra)
+ * [SQLite](driver/sqlite3)
+ * [MySQL](driver/mysql) ([experimental](https://github.com/mattes/migrate/issues/1#issuecomment-58728186))
+ * [Neo4j](driver/neo4j)
+ * [Ql](driver/ql)
+ * [MongoDB](driver/mongodb)
+ * [CrateDB](driver/crate)
+ * [MSSQL](driver/mssql)

-Any [reserved URL characters](https://en.wikipedia.org/wiki/Percent-encoding#Percent-encoding_reserved_characters) need to be escaped. Note, the `%` character also [needs to be escaped](https://en.wikipedia.org/wiki/Percent-encoding#Percent-encoding_the_percent_character)
+Need another driver? Just implement the [Driver interface](http://godoc.org/gopkg.in/mattes/migrate.v1/driver#Driver) and open a PR.

-Explicitly, the following characters need to be escaped:
-`!`, `#`, `$`, `%`, `&`, `'`, `(`, `)`, `*`, `+`, `,`, `/`, `:`, `;`, `=`, `?`, `@`, `[`, `]`

-It's easiest to always run the URL parts of your DB connection URL (e.g. username, password, etc) through an URL encoder. See the example Python snippets below:
+## Usage from Terminal
+
 ```bash
-$ python3 -c 'import urllib.parse; print(urllib.parse.quote(input("String to encode: "), ""))'
-String to encode: FAKEpassword!#$%&'()*+,/:;=?@[]
-FAKEpassword%21%23%24%25%26%27%28%29%2A%2B%2C%2F%3A%3B%3D%3F%40%5B%5D
-$ python2 -c 'import urllib; print urllib.quote(raw_input("String to encode: "), "")'
-String to encode: FAKEpassword!#$%&'()*+,/:;=?@[]
-FAKEpassword%21%23%24%25%26%27%28%29%2A%2B%2C%2F%3A%3B%3D%3F%40%5B%5D
-$
+# install
+go get gopkg.in/mattes/migrate.v1
+
+# create new migration file in path
+migrate -url driver://url -path ./migrations create migration_file_xyz
+
+# apply all available migrations
+migrate -url driver://url -path ./migrations up
+
+# roll back all migrations
+migrate -url driver://url -path ./migrations down
+
+# roll back the most recently applied migration, then run it again.
+migrate -url driver://url -path ./migrations redo
+
+# run down and then up command
+migrate -url driver://url -path ./migrations reset
+
+# show the current migration version
+migrate -url driver://url -path ./migrations version
+
+# apply the next n migrations
+migrate -url driver://url -path ./migrations migrate +1
+migrate -url driver://url -path ./migrations migrate +2
+migrate -url driver://url -path ./migrations migrate +n
+
+# roll back the previous n migrations
+migrate -url driver://url -path ./migrations migrate -1
+migrate -url driver://url -path ./migrations migrate -2
+migrate -url driver://url -path ./migrations migrate -n
+
+# go to specific migration
+migrate -url driver://url -path ./migrations goto 1
+migrate -url driver://url -path ./migrations goto 10
+migrate -url driver://url -path ./migrations goto v
 ```

-## Migration Sources

-Source drivers read migrations from local or remote sources. [Add a new source?](source/driver.go)
+## Usage in Go

-  * [Filesystem](source/file) - read from fileystem
-  * [Go-Bindata](source/go_bindata) - read from embedded binary data ([jteeuwen/go-bindata](https://github.com/jteeuwen/go-bindata))
-  * [Github](source/github) - read from remote Github repositories
-  * [AWS S3](source/aws_s3) - read from Amazon Web Services S3
-  * [Google Cloud Storage](source/google_cloud_storage) - read from Google Cloud Platform Storage
-
-
-
-## CLI usage
-
-  * Simple wrapper around this library.
-  * Handles ctrl+c (SIGINT) gracefully.
-  * No config search paths, no config files, no magic ENV var injections.
-
-__[CLI Documentation](cli)__
-
-### Basic usage:
-
-```
-$ migrate -source file://path/to/migrations -database postgres://localhost:5432/database up 2
-```
-
-### Docker usage
-
-```
-$ docker run -v {{ migration dir }}:/migrations --network host migrate/migrate 
-    -path=/migrations/ -database postgres://localhost:5432/database up 2
-```
-
-## Use in your Go project
-
- * API is stable and frozen for this release (v3 & v4).
- * Uses [Go modules](https://golang.org/cmd/go/#hdr-Modules__module_versions__and_more) to manage dependencies.
- * To help prevent database corruptions, it supports graceful stops via `GracefulStop chan bool`.
- * Bring your own logger.
- * Uses `io.Reader` streams internally for low memory overhead.
- * Thread-safe and no goroutine leaks.
-
-__[Go Documentation](https://godoc.org/github.com/golang-migrate/migrate)__
+See GoDoc here: http://godoc.org/gopkg.in/mattes/migrate.v1/migrate

 ```go
-import (
-    "github.com/golang-migrate/migrate/v4"
-    _ "github.com/golang-migrate/migrate/v4/database/postgres"
-    _ "github.com/golang-migrate/migrate/v4/source/github"
-)
+import "gopkg.in/mattes/migrate.v1/migrate"

-func main() {
-    m, err := migrate.New(
-        "github://mattes:personal-access-token@mattes/migrate_test",
-        "postgres://localhost:5432/database?sslmode=enable")
-    m.Steps(2)
+// Import any required drivers so that they are registered and available
+import _ "gopkg.in/mattes/migrate.v1/driver/mysql"
+
+// use synchronous versions of migration functions ...
+allErrors, ok := migrate.UpSync("driver://url", "./path")
+if !ok {
+  fmt.Println("Oh no ...")
+  // do sth with allErrors slice
 }
-```

-Want to use an existing database client?
-
-```go
-import (
-    "database/sql"
-    _ "github.com/lib/pq"
-    "github.com/golang-migrate/migrate/v4"
-    "github.com/golang-migrate/migrate/v4/database/postgres"
-    _ "github.com/golang-migrate/migrate/v4/source/file"
-)
-
-func main() {
-    db, err := sql.Open("postgres", "postgres://localhost:5432/database?sslmode=enable")
-    driver, err := postgres.WithInstance(db, &postgres.Config{})
-    m, err := migrate.NewWithDatabaseInstance(
-        "file:///migrations",
-        "postgres", driver)
-    m.Steps(2)
-}
+// use the asynchronous version of migration functions ...
+pipe := migrate.NewPipe()
+go migrate.Up(pipe, "driver://url", "./path")
+// pipe is basically just a channel
+// write your own channel listener. see writePipe() in main.go as an example.
 ```

 ## Migration files

-Each migration has an up and down migration. [Why?](FAQ.md#why-two-separate-files-up-and-down-for-a-migration)
+The format of migration files looks like this:

 ```
-1481574547_create_users_table.up.sql
-1481574547_create_users_table.down.sql
+1481574547_initial_plan_to_do_sth.up.sql     # up migration instructions
+1481574547_initial_plan_to_do_sth.down.sql   # down migration instructions
+1482438365_xxx.up.sql
+1482438365_xxx.down.sql
+...
 ```

-[Best practices: How to write migrations.](MIGRATIONS.md)
-
-## Supported Major Versions
-
-Version | Go Modules | Min Go Version | Import | Notes
--------|------------|----------------|--------|------
-**master** | :white_check_mark: | 1.10.3 | `import "github.com/golang-migrate/migrate/v4"` | New features and bug fixes arrive here first |
-**v4** | :white_check_mark: | 1.10.3 | `import "github.com/golang-migrate/migrate/v4"` | |
-**v3** | :x: | 1.10 | `import "github.com/golang-migrate/migrate"` (with package manager) or `import "gopkg.in/golang-migrate/migrate.v3"` (not recommended) | Only security fixes are backported. Only use if your project is not using Go modules. |
-
-## Development and Contributing
-
-Yes, please! [`Makefile`](Makefile) is your friend,
-read the [development guide](CONTRIBUTING.md).
-
-Also have a look at the [FAQ](FAQ.md).
+Why two files? This way you could still do sth like 
+``psql -f ./db/migrations/1481574547_initial_plan_to_do_sth.up.sql`` and there is no
+need for any custom markup language to divide up and down migrations. Please note
+that the filename extension depends on the driver.


+## Alternatives
+
+ * https://bitbucket.org/liamstask/goose
+ * https://github.com/tanel/dbmigrate
+ * https://github.com/BurntSushi/migration
+ * https://github.com/DavidHuie/gomigrate
+ * https://github.com/rubenv/sql-migrate

---

-Looking for alternatives? [https://awesome-go.com/#database](https://awesome-go.com/#database).
@@ -1,125 +0,0 @@
-# migrate CLI
-
-## Installation
-
-#### Download pre-build binary (Windows, MacOS, or Linux)
-
-[Release Downloads](https://github.com/golang-migrate/migrate/releases)
-
-```
-$ curl -L https://github.com/golang-migrate/migrate/releases/download/$version/migrate.$platform-amd64.tar.gz | tar xvz
-```
-
-#### MacOS
-
-```
-$ brew install golang-migrate
-```
-
-#### Linux (*.deb package)
-
-```
-$ curl -L https://packagecloud.io/golang-migrate/migrate/gpgkey | apt-key add -
-$ echo "deb https://packagecloud.io/golang-migrate/migrate/ubuntu/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/migrate.list
-$ apt-get update
-$ apt-get install -y migrate
-```
-
-#### With Go toolchain
-
-##### Unversioned
-```
-$ go get -tags 'postgres' -u github.com/golang-migrate/migrate/cmd/migrate
-```
-
-##### Versioned
-
-```
-$ go get -u -d github.com/golang-migrate/migrate/cmd/migrate
-$ cd $GOPATH/src/github.com/golang-migrate/migrate/cmd/migrate
-$ git checkout $TAG  # e.g. v4.1.0
-$ go build -tags 'postgres' -ldflags="-X main.Version=$(git describe --tags)" -o $GOPATH/bin/migrate github.com/golang-migrate/migrate/cmd/migrate
-```
-
-##### Notes:
-1. Requires a version of Go that [supports modules](https://golang.org/cmd/go/#hdr-Preliminary_module_support). e.g. Go 1.11+
-1. This example builds the cli which will only work with postgres.  In order
-to build the cli for use with other databases, replace the `postgres` build tag
-with the appropriate database tag(s) for the databases desired.  The tags
-correspond to the names of the sub-packages underneath the
-[`database`](../database) package.
-1. Similarly to the database build tags, if you need to support other sources, use the appropriate build tag(s).
-1. Support for build constraints will be removed in the future: https://github.com/golang-migrate/migrate/issues/60
-
-
-## Usage
-
-```
-$ migrate -help
-Usage: migrate OPTIONS COMMAND [arg...]
-       migrate [ -version | -help ]
-
-Options:
-  -source          Location of the migrations (driver://url)
-  -path            Shorthand for -source=file://path
-  -database        Run migrations against this database (driver://url)
-  -prefetch N      Number of migrations to load in advance before executing (default 10)
-  -lock-timeout N  Allow N seconds to acquire database lock (default 15)
-  -verbose         Print verbose logging
-  -version         Print version
-  -help            Print usage
-
-Commands:
-  create [-ext E] [-dir D] [-seq] [-digits N] [-format] NAME
-               Create a set of timestamped up/down migrations titled NAME, in directory D with extension E.
-               Use -seq option to generate sequential up/down migrations with N digits.
-               Use -format option to specify a Go time format string.
-  goto V       Migrate to version V
-  up [N]       Apply all or N up migrations
-  down [N]     Apply all or N down migrations
-  drop         Drop everyting inside database
-  force V      Set version V but don't run migration (ignores dirty state)
-  version      Print current migration version
-```
-
-
-So let's say you want to run the first two migrations
-
-```
-$ migrate -source file://path/to/migrations -database postgres://localhost:5432/database up 2
-```
-
-If your migrations are hosted on github
-
-```
-$ migrate -source github://mattes:personal-access-token@mattes/migrate_test \
-    -database postgres://localhost:5432/database down 2
-```
-
-The CLI will gracefully stop at a safe point when SIGINT (ctrl+c) is received.
-Send SIGKILL for immediate halt.
-
-
-
-## Reading CLI arguments from somewhere else
-
-##### ENV variables
-
-```
-$ migrate -database "$MY_MIGRATE_DATABASE"
-```
-
-##### JSON files
-
-Check out https://stedolan.github.io/jq/
-
-```
-$ migrate -database "$(cat config.json | jq '.database')"
-```
-
-##### YAML files
-
-````
-$ migrate -database "$(cat config/database.yml | ruby -ryaml -e "print YAML.load(STDIN.read)['database']")"
-$ migrate -database "$(cat config/database.yml | python -c 'import yaml,sys;print yaml.safe_load(sys.stdin)["database"]')"
-```
@@ -1,12 +0,0 @@
-FROM ubuntu:xenial
-
-RUN apt-get update && \
-    apt-get install -y curl apt-transport-https
-
-RUN curl -L https://packagecloud.io/golang-migrate/migrate/gpgkey | apt-key add - && \
-    echo "deb https://packagecloud.io/golang-migrate/migrate/ubuntu/ xenial main" > /etc/apt/sources.list.d/migrate.list && \
-    apt-get update && \
-    apt-get install -y migrate
-
-RUN migrate -version
-
@@ -1,8 +0,0 @@
-package main
-
-import "github.com/golang-migrate/migrate/v4/internal/cli"
-
-// Deprecated, please use cmd/migrate
-func main() {
-	cli.Main(Version)
-}
@@ -1,4 +0,0 @@
-package main
-
-// Version is set in Makefile with build flags
-var Version = "dev"
@@ -1,7 +0,0 @@
-package main
-
-import "github.com/golang-migrate/migrate/v4/internal/cli"
-
-func main() {
-	cli.Main(Version)
-}
@@ -1,4 +0,0 @@
-package main
-
-// Version is set in Makefile with build flags
-var Version = "dev"
@@ -1,38 +0,0 @@
-# Cassandra
-
-* Drop command will not work on Cassandra 2.X because it rely on
-system_schema table which comes with 3.X
-* Other commands should work properly but are **not tested**
-* The Cassandra driver (gocql) does not natively support executing multipe statements in a single query. To allow for multiple statements in a single migration, you can use the `x-multi-statement` param. There are two important caveats:
-  * This mode splits the migration text into separately-executed statements by a semi-colon `;`. Thus `x-multi-statement` cannot be used when a statement in the migration contains a string with a semi-colon.
-  * The queries are not executed in any sort of transaction/batch, meaning you are responsible for fixing partial migrations.
-
-
-## Usage
-`cassandra://host:port/keyspace?param1=value&param2=value2`
-
-
-| URL Query  | Default value | Description |
-|------------|-------------|-----------|
-| `x-migrations-table` | schema_migrations | Name of the migrations table |
-| `x-multi-statement` | false | Enable multiple statements to be ran in a single migration (See note above) |
-| `port` | 9042 | The port to bind to  |
-| `consistency` | ALL | Migration consistency
-| `protocol` |  | Cassandra protocol version (3 or 4)
-| `timeout` | 1 minute | Migration timeout
-| `username` | nil | Username to use when authenticating. |
-| `password` | nil | Password to use when authenticating. |
-| `sslcert` | | Cert file location. The file must contain PEM encoded data. |
-| `sslkey` | | Key file location. The file must contain PEM encoded data. |
-| `sslrootcert` | | The location of the root certificate file. The file must contain PEM encoded data. |
-| `sslmode` | | Whether or not to use SSL (disable\|require\|verify-ca\|verify-full) |
-
-`timeout` is parsed using [time.ParseDuration(s string)](https://golang.org/pkg/time/#ParseDuration)
-
-
-## Upgrading from v1
-
-1. Write down the current migration version from schema_migrations
-2. `DROP TABLE schema_migrations`
-4. Download and install the latest migrate version.
-5. Force the current migration version with `migrate force <current_version>`.
@@ -1,274 +0,0 @@
-package cassandra
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-	nurl "net/url"
-	"strconv"
-	"strings"
-	"time"
-
-	"github.com/gocql/gocql"
-	"github.com/golang-migrate/migrate/v4/database"
-)
-
-func init() {
-	db := new(Cassandra)
-	database.Register("cassandra", db)
-}
-
-var DefaultMigrationsTable = "schema_migrations"
-
-var (
-	ErrNilConfig     = errors.New("no config")
-	ErrNoKeyspace    = errors.New("no keyspace provided")
-	ErrDatabaseDirty = errors.New("database is dirty")
-	ErrClosedSession = errors.New("session is closed")
-)
-
-type Config struct {
-	MigrationsTable       string
-	KeyspaceName          string
-	MultiStatementEnabled bool
-}
-
-type Cassandra struct {
-	session  *gocql.Session
-	isLocked bool
-
-	// Open and WithInstance need to guarantee that config is never nil
-	config *Config
-}
-
-func WithInstance(session *gocql.Session, config *Config) (database.Driver, error) {
-	if config == nil {
-		return nil, ErrNilConfig
-	} else if len(config.KeyspaceName) == 0 {
-		return nil, ErrNoKeyspace
-	}
-
-	if session.Closed() {
-		return nil, ErrClosedSession
-	}
-
-	if len(config.MigrationsTable) == 0 {
-		config.MigrationsTable = DefaultMigrationsTable
-	}
-
-	c := &Cassandra{
-		session: session,
-		config:  config,
-	}
-
-	if err := c.ensureVersionTable(); err != nil {
-		return nil, err
-	}
-
-	return c, nil
-}
-
-func (c *Cassandra) Open(url string) (database.Driver, error) {
-	u, err := nurl.Parse(url)
-	if err != nil {
-		return nil, err
-	}
-
-	// Check for missing mandatory attributes
-	if len(u.Path) == 0 {
-		return nil, ErrNoKeyspace
-	}
-
-	cluster := gocql.NewCluster(u.Host)
-	cluster.Keyspace = strings.TrimPrefix(u.Path, "/")
-	cluster.Consistency = gocql.All
-	cluster.Timeout = 1 * time.Minute
-
-	if len(u.Query().Get("username")) > 0 && len(u.Query().Get("password")) > 0 {
-		authenticator := gocql.PasswordAuthenticator{
-			Username: u.Query().Get("username"),
-			Password: u.Query().Get("password"),
-		}
-		cluster.Authenticator = authenticator
-	}
-
-	// Retrieve query string configuration
-	if len(u.Query().Get("consistency")) > 0 {
-		var consistency gocql.Consistency
-		consistency, err = parseConsistency(u.Query().Get("consistency"))
-		if err != nil {
-			return nil, err
-		}
-
-		cluster.Consistency = consistency
-	}
-	if len(u.Query().Get("protocol")) > 0 {
-		var protoversion int
-		protoversion, err = strconv.Atoi(u.Query().Get("protocol"))
-		if err != nil {
-			return nil, err
-		}
-		cluster.ProtoVersion = protoversion
-	}
-	if len(u.Query().Get("timeout")) > 0 {
-		var timeout time.Duration
-		timeout, err = time.ParseDuration(u.Query().Get("timeout"))
-		if err != nil {
-			return nil, err
-		}
-		cluster.Timeout = timeout
-	}
-
-	if len(u.Query().Get("sslmode")) > 0 && len(u.Query().Get("sslrootcert")) > 0 && len(u.Query().Get("sslcert")) > 0 && len(u.Query().Get("sslkey")) > 0 {
-		if u.Query().Get("sslmode") != "disable" {
-			cluster.SslOpts = &gocql.SslOptions{
-				CaPath:   u.Query().Get("sslrootcert"),
-				CertPath: u.Query().Get("sslcert"),
-				KeyPath:  u.Query().Get("sslkey"),
-			}
-			if u.Query().Get("sslmode") == "verify-full" {
-				cluster.SslOpts.EnableHostVerification = true
-			}
-		}
-	}
-
-	session, err := cluster.CreateSession()
-	if err != nil {
-		return nil, err
-	}
-
-	return WithInstance(session, &Config{
-		KeyspaceName:          strings.TrimPrefix(u.Path, "/"),
-		MigrationsTable:       u.Query().Get("x-migrations-table"),
-		MultiStatementEnabled: u.Query().Get("x-multi-statement") == "true",
-	})
-}
-
-func (c *Cassandra) Close() error {
-	c.session.Close()
-	return nil
-}
-
-func (c *Cassandra) Lock() error {
-	if c.isLocked {
-		return database.ErrLocked
-	}
-	c.isLocked = true
-	return nil
-}
-
-func (c *Cassandra) Unlock() error {
-	c.isLocked = false
-	return nil
-}
-
-func (c *Cassandra) Run(migration io.Reader) error {
-	migr, err := ioutil.ReadAll(migration)
-	if err != nil {
-		return err
-	}
-	// run migration
-	query := string(migr[:])
-
-	if c.config.MultiStatementEnabled {
-		// split query by semi-colon
-		queries := strings.Split(query, ";")
-
-		for _, q := range queries {
-			tq := strings.TrimSpace(q)
-			if tq == "" {
-				continue
-			}
-			if err := c.session.Query(tq).Exec(); err != nil {
-				// TODO: cast to Cassandra error and get line number
-				return database.Error{OrigErr: err, Err: "migration failed", Query: migr}
-			}
-		}
-		return nil
-	}
-
-	if err := c.session.Query(query).Exec(); err != nil {
-		// TODO: cast to Cassandra error and get line number
-		return database.Error{OrigErr: err, Err: "migration failed", Query: migr}
-	}
-	return nil
-}
-
-func (c *Cassandra) SetVersion(version int, dirty bool) error {
-	query := `TRUNCATE "` + c.config.MigrationsTable + `"`
-	if err := c.session.Query(query).Exec(); err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	if version >= 0 {
-		query = `INSERT INTO "` + c.config.MigrationsTable + `" (version, dirty) VALUES (?, ?)`
-		if err := c.session.Query(query, version, dirty).Exec(); err != nil {
-			return &database.Error{OrigErr: err, Query: []byte(query)}
-		}
-	}
-
-	return nil
-}
-
-// Return current keyspace version
-func (c *Cassandra) Version() (version int, dirty bool, err error) {
-	query := `SELECT version, dirty FROM "` + c.config.MigrationsTable + `" LIMIT 1`
-	err = c.session.Query(query).Scan(&version, &dirty)
-	switch {
-	case err == gocql.ErrNotFound:
-		return database.NilVersion, false, nil
-
-	case err != nil:
-		if _, ok := err.(*gocql.Error); ok {
-			return database.NilVersion, false, nil
-		}
-		return 0, false, &database.Error{OrigErr: err, Query: []byte(query)}
-
-	default:
-		return version, dirty, nil
-	}
-}
-
-func (c *Cassandra) Drop() error {
-	// select all tables in current schema
-	query := fmt.Sprintf(`SELECT table_name from system_schema.tables WHERE keyspace_name='%s'`, c.config.KeyspaceName)
-	iter := c.session.Query(query).Iter()
-	var tableName string
-	for iter.Scan(&tableName) {
-		err := c.session.Query(fmt.Sprintf(`DROP TABLE %s`, tableName)).Exec()
-		if err != nil {
-			return err
-		}
-	}
-	// Re-create the version table
-	return c.ensureVersionTable()
-}
-
-// Ensure version table exists
-func (c *Cassandra) ensureVersionTable() error {
-	err := c.session.Query(fmt.Sprintf("CREATE TABLE IF NOT EXISTS %s (version bigint, dirty boolean, PRIMARY KEY(version))", c.config.MigrationsTable)).Exec()
-	if err != nil {
-		return err
-	}
-	if _, _, err = c.Version(); err != nil {
-		return err
-	}
-	return nil
-}
-
-// ParseConsistency wraps gocql.ParseConsistency
-// to return an error instead of a panicking.
-func parseConsistency(consistencyStr string) (consistency gocql.Consistency, err error) {
-	defer func() {
-		if r := recover(); r != nil {
-			var ok bool
-			err, ok = r.(error)
-			if !ok {
-				err = fmt.Errorf("Failed to parse consistency \"%s\": %v", consistencyStr, r)
-			}
-		}
-	}()
-	consistency = gocql.ParseConsistency(consistencyStr)
-
-	return consistency, nil
-}
@@ -1,74 +0,0 @@
-package cassandra
-
-import (
-	"context"
-	"fmt"
-	"strconv"
-	"testing"
-)
-
-import (
-	"github.com/dhui/dktest"
-	"github.com/gocql/gocql"
-)
-
-import (
-	dt "github.com/golang-migrate/migrate/v4/database/testing"
-	"github.com/golang-migrate/migrate/v4/dktesting"
-)
-
-var (
-	opts = dktest.Options{PortRequired: true, ReadyFunc: isReady}
-	// Supported versions: http://cassandra.apache.org/download/
-	// Although Cassandra 2.x is supported by the Apache Foundation,
-	// the migrate db driver only supports Cassandra 3.x since it uses
-	// the system_schema keyspace.
-	specs = []dktesting.ContainerSpec{
-		{ImageName: "cassandra:3.0", Options: opts},
-		{ImageName: "cassandra:3.11", Options: opts},
-	}
-)
-
-func isReady(ctx context.Context, c dktest.ContainerInfo) bool {
-	// Cassandra exposes 5 ports (7000, 7001, 7199, 9042 & 9160)
-	// We only need the port bound to 9042
-	ip, portStr, err := c.Port(9042)
-	if err != nil {
-		return false
-	}
-	port, err := strconv.Atoi(portStr)
-	if err != nil {
-		return false
-	}
-
-	cluster := gocql.NewCluster(ip)
-	cluster.Port = port
-	cluster.Consistency = gocql.All
-	p, err := cluster.CreateSession()
-	if err != nil {
-		return false
-	}
-	defer p.Close()
-	// Create keyspace for tests
-	if err = p.Query("CREATE KEYSPACE testks WITH REPLICATION = {'class': 'SimpleStrategy', 'replication_factor':1}").Exec(); err != nil {
-		return false
-	}
-	return true
-}
-
-func Test(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.Port(9042)
-		if err != nil {
-			t.Fatal("Unable to get mapped port:", err)
-		}
-		addr := fmt.Sprintf("cassandra://%v:%v/testks", ip, port)
-		p := &Cassandra{}
-		d, err := p.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer d.Close()
-		dt.Test(t, d, []byte("SELECT table_name from system_schema.tables"))
-	})
-}
@@ -1,19 +0,0 @@
-# ClickHouse
-
-`clickhouse://host:port?username=user&password=qwerty&database=clicks&x-multi-statement=true`
-
-| URL Query  | Description |
-|------------|-------------|
-| `x-migrations-table`| Name of the migrations table |
-| `database` | The name of the database to connect to |
-| `username` | The user to sign in as |
-| `password` | The user's password | 
-| `host` | The host to connect to. |
-| `port` | The port to bind to. |
-| `x-multi-statement` | false | Enable multiple statements to be ran in a single migration (See note below) |
-
-## Notes
-
-* The Clickhouse driver does not natively support executing multipe statements in a single query. To allow for multiple statements in a single migration, you can use the `x-multi-statement` param. There are two important caveats:
-  * This mode splits the migration text into separately-executed statements by a semi-colon `;`. Thus `x-multi-statement` cannot be used when a statement in the migration contains a string with a semi-colon.
-  * The queries are not executed in any sort of transaction/batch, meaning you are responsible for fixing partial migrations.
@@ -1,215 +0,0 @@
-package clickhouse
-
-import (
-	"database/sql"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/url"
-	"strings"
-	"time"
-
-	"github.com/golang-migrate/migrate/v4"
-	"github.com/golang-migrate/migrate/v4/database"
-)
-
-var DefaultMigrationsTable = "schema_migrations"
-
-var ErrNilConfig = fmt.Errorf("no config")
-
-type Config struct {
-	DatabaseName          string
-	MigrationsTable       string
-	MultiStatementEnabled bool
-}
-
-func init() {
-	database.Register("clickhouse", &ClickHouse{})
-}
-
-func WithInstance(conn *sql.DB, config *Config) (database.Driver, error) {
-	if config == nil {
-		return nil, ErrNilConfig
-	}
-
-	if err := conn.Ping(); err != nil {
-		return nil, err
-	}
-
-	ch := &ClickHouse{
-		conn:   conn,
-		config: config,
-	}
-
-	if err := ch.init(); err != nil {
-		return nil, err
-	}
-
-	return ch, nil
-}
-
-type ClickHouse struct {
-	conn   *sql.DB
-	config *Config
-}
-
-func (ch *ClickHouse) Open(dsn string) (database.Driver, error) {
-	purl, err := url.Parse(dsn)
-	if err != nil {
-		return nil, err
-	}
-	q := migrate.FilterCustomQuery(purl)
-	q.Scheme = "tcp"
-	conn, err := sql.Open("clickhouse", q.String())
-	if err != nil {
-		return nil, err
-	}
-
-	ch = &ClickHouse{
-		conn: conn,
-		config: &Config{
-			MigrationsTable:       purl.Query().Get("x-migrations-table"),
-			DatabaseName:          purl.Query().Get("database"),
-			MultiStatementEnabled: purl.Query().Get("x-multi-statement") == "true",
-		},
-	}
-
-	if err := ch.init(); err != nil {
-		return nil, err
-	}
-
-	return ch, nil
-}
-
-func (ch *ClickHouse) init() error {
-	if len(ch.config.DatabaseName) == 0 {
-		if err := ch.conn.QueryRow("SELECT currentDatabase()").Scan(&ch.config.DatabaseName); err != nil {
-			return err
-		}
-	}
-
-	if len(ch.config.MigrationsTable) == 0 {
-		ch.config.MigrationsTable = DefaultMigrationsTable
-	}
-
-	return ch.ensureVersionTable()
-}
-
-func (ch *ClickHouse) Run(r io.Reader) error {
-	migration, err := ioutil.ReadAll(r)
-	if err != nil {
-		return err
-	}
-
-	if ch.config.MultiStatementEnabled {
-		// split query by semi-colon
-		queries := strings.Split(string(migration), ";")
-		for _, q := range queries {
-			tq := strings.TrimSpace(q)
-			if tq == "" {
-				continue
-			}
-			if _, err := ch.conn.Exec(string(q)); err != nil {
-				return database.Error{OrigErr: err, Err: "migration failed", Query: []byte(q)}
-			}
-		}
-		return nil
-	}
-
-	if _, err := ch.conn.Exec(string(migration)); err != nil {
-		return database.Error{OrigErr: err, Err: "migration failed", Query: migration}
-	}
-
-	return nil
-}
-func (ch *ClickHouse) Version() (int, bool, error) {
-	var (
-		version int
-		dirty   uint8
-		query   = "SELECT version, dirty FROM `" + ch.config.MigrationsTable + "` ORDER BY sequence DESC LIMIT 1"
-	)
-	if err := ch.conn.QueryRow(query).Scan(&version, &dirty); err != nil {
-		if err == sql.ErrNoRows {
-			return database.NilVersion, false, nil
-		}
-		return 0, false, &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	return version, dirty == 1, nil
-}
-
-func (ch *ClickHouse) SetVersion(version int, dirty bool) error {
-	var (
-		bool = func(v bool) uint8 {
-			if v {
-				return 1
-			}
-			return 0
-		}
-		tx, err = ch.conn.Begin()
-	)
-	if err != nil {
-		return err
-	}
-
-	query := "INSERT INTO " + ch.config.MigrationsTable + " (version, dirty, sequence) VALUES (?, ?, ?)"
-	if _, err := tx.Exec(query, version, bool(dirty), time.Now().UnixNano()); err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-
-	return tx.Commit()
-}
-
-func (ch *ClickHouse) ensureVersionTable() error {
-	var (
-		table string
-		query = "SHOW TABLES FROM " + ch.config.DatabaseName + " LIKE '" + ch.config.MigrationsTable + "'"
-	)
-	// check if migration table exists
-	if err := ch.conn.QueryRow(query).Scan(&table); err != nil {
-		if err != sql.ErrNoRows {
-			return &database.Error{OrigErr: err, Query: []byte(query)}
-		}
-	} else {
-		return nil
-	}
-	// if not, create the empty migration table
-	query = `
-		CREATE TABLE ` + ch.config.MigrationsTable + ` (
-			version    Int64, 
-			dirty      UInt8,
-			sequence   UInt64
-		) Engine=TinyLog
-	`
-	if _, err := ch.conn.Exec(query); err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	return nil
-}
-
-func (ch *ClickHouse) Drop() error {
-	var (
-		query       = "SHOW TABLES FROM " + ch.config.DatabaseName
-		tables, err = ch.conn.Query(query)
-	)
-	if err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	defer tables.Close()
-	for tables.Next() {
-		var table string
-		if err := tables.Scan(&table); err != nil {
-			return err
-		}
-
-		query = "DROP TABLE IF EXISTS " + ch.config.DatabaseName + "." + table
-
-		if _, err := ch.conn.Exec(query); err != nil {
-			return &database.Error{OrigErr: err, Query: []byte(query)}
-		}
-	}
-	return ch.ensureVersionTable()
-}
-
-func (ch *ClickHouse) Lock() error   { return nil }
-func (ch *ClickHouse) Unlock() error { return nil }
-func (ch *ClickHouse) Close() error  { return ch.conn.Close() }
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS test_1;
@@ -1,3 +0,0 @@
-CREATE TABLE test_1 (
-    Date Date 
-) Engine=Memory;
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS test_2;
@@ -1,3 +0,0 @@
-CREATE TABLE test_2 (
-    Date Date 
-) Engine=Memory;
@@ -1,19 +0,0 @@
-# cockroachdb
-
-`cockroachdb://user:password@host:port/dbname?query` (`cockroach://`, and `crdb-postgres://` work, too)
-
-| URL Query  | WithInstance Config | Description |
-|------------|---------------------|-------------|
-| `x-migrations-table` | `MigrationsTable` | Name of the migrations table |
-| `x-lock-table` | `LockTable` | Name of the table which maintains the migration lock |
-| `x-force-lock` | `ForceLock` | Force lock acquisition to fix faulty migrations which may not have released the schema lock (Boolean, default is `false`) |
-| `dbname` | `DatabaseName` | The name of the database to connect to |
-| `user` | | The user to sign in as |
-| `password` | | The user's password |
-| `host` | | The host to connect to. Values that start with / are for unix domain sockets. (default is localhost) |
-| `port` | | The port to bind to. (default is 5432) |
-| `connect_timeout` | | Maximum wait for connection, in seconds. Zero or not specified means wait indefinitely. |
-| `sslcert` | | Cert file location. The file must contain PEM encoded data. |
-| `sslkey` | | Key file location. The file must contain PEM encoded data. |
-| `sslrootcert` | | The location of the root certificate file. The file must contain PEM encoded data. |
-| `sslmode` | | Whether or not to use SSL (disable\|require\|verify-ca\|verify-full) |
@@ -1,342 +0,0 @@
-package cockroachdb
-
-import (
-	"context"
-	"database/sql"
-	"fmt"
-	"io"
-	"io/ioutil"
-	nurl "net/url"
-	"regexp"
-	"strconv"
-)
-
-import (
-	"github.com/cockroachdb/cockroach-go/crdb"
-	"github.com/lib/pq"
-)
-
-import (
-	"github.com/golang-migrate/migrate/v4"
-	"github.com/golang-migrate/migrate/v4/database"
-)
-
-func init() {
-	db := CockroachDb{}
-	database.Register("cockroach", &db)
-	database.Register("cockroachdb", &db)
-	database.Register("crdb-postgres", &db)
-}
-
-var DefaultMigrationsTable = "schema_migrations"
-var DefaultLockTable = "schema_lock"
-
-var (
-	ErrNilConfig      = fmt.Errorf("no config")
-	ErrNoDatabaseName = fmt.Errorf("no database name")
-)
-
-type Config struct {
-	MigrationsTable string
-	LockTable       string
-	ForceLock       bool
-	DatabaseName    string
-}
-
-type CockroachDb struct {
-	db       *sql.DB
-	isLocked bool
-
-	// Open and WithInstance need to guarantee that config is never nil
-	config *Config
-}
-
-func WithInstance(instance *sql.DB, config *Config) (database.Driver, error) {
-	if config == nil {
-		return nil, ErrNilConfig
-	}
-
-	if err := instance.Ping(); err != nil {
-		return nil, err
-	}
-
-	query := `SELECT current_database()`
-	var databaseName string
-	if err := instance.QueryRow(query).Scan(&databaseName); err != nil {
-		return nil, &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-
-	if len(databaseName) == 0 {
-		return nil, ErrNoDatabaseName
-	}
-
-	config.DatabaseName = databaseName
-
-	if len(config.MigrationsTable) == 0 {
-		config.MigrationsTable = DefaultMigrationsTable
-	}
-
-	if len(config.LockTable) == 0 {
-		config.LockTable = DefaultLockTable
-	}
-
-	px := &CockroachDb{
-		db:     instance,
-		config: config,
-	}
-
-	if err := px.ensureVersionTable(); err != nil {
-		return nil, err
-	}
-
-	if err := px.ensureLockTable(); err != nil {
-		return nil, err
-	}
-
-	return px, nil
-}
-
-func (c *CockroachDb) Open(url string) (database.Driver, error) {
-	purl, err := nurl.Parse(url)
-	if err != nil {
-		return nil, err
-	}
-
-	// As Cockroach uses the postgres protocol, and 'postgres' is already a registered database, we need to replace the
-	// connect prefix, with the actual protocol, so that the library can differentiate between the implementations
-	re := regexp.MustCompile("^(cockroach(db)?|crdb-postgres)")
-	connectString := re.ReplaceAllString(migrate.FilterCustomQuery(purl).String(), "postgres")
-
-	db, err := sql.Open("postgres", connectString)
-	if err != nil {
-		return nil, err
-	}
-
-	migrationsTable := purl.Query().Get("x-migrations-table")
-	if len(migrationsTable) == 0 {
-		migrationsTable = DefaultMigrationsTable
-	}
-
-	lockTable := purl.Query().Get("x-lock-table")
-	if len(lockTable) == 0 {
-		lockTable = DefaultLockTable
-	}
-
-	forceLockQuery := purl.Query().Get("x-force-lock")
-	forceLock, err := strconv.ParseBool(forceLockQuery)
-	if err != nil {
-		forceLock = false
-	}
-
-	px, err := WithInstance(db, &Config{
-		DatabaseName:    purl.Path,
-		MigrationsTable: migrationsTable,
-		LockTable:       lockTable,
-		ForceLock:       forceLock,
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	return px, nil
-}
-
-func (c *CockroachDb) Close() error {
-	return c.db.Close()
-}
-
-// Locking is done manually with a separate lock table.  Implementing advisory locks in CRDB is being discussed
-// See: https://github.com/cockroachdb/cockroach/issues/13546
-func (c *CockroachDb) Lock() error {
-	err := crdb.ExecuteTx(context.Background(), c.db, nil, func(tx *sql.Tx) error {
-		aid, err := database.GenerateAdvisoryLockId(c.config.DatabaseName)
-		if err != nil {
-			return err
-		}
-
-		query := "SELECT * FROM " + c.config.LockTable + " WHERE lock_id = $1"
-		rows, err := tx.Query(query, aid)
-		if err != nil {
-			return database.Error{OrigErr: err, Err: "failed to fetch migration lock", Query: []byte(query)}
-		}
-		defer rows.Close()
-
-		// If row exists at all, lock is present
-		locked := rows.Next()
-		if locked && !c.config.ForceLock {
-			return database.ErrLocked
-		}
-
-		query = "INSERT INTO " + c.config.LockTable + " (lock_id) VALUES ($1)"
-		if _, err := tx.Exec(query, aid); err != nil {
-			return database.Error{OrigErr: err, Err: "failed to set migration lock", Query: []byte(query)}
-		}
-
-		return nil
-	})
-
-	if err != nil {
-		return err
-	} else {
-		c.isLocked = true
-		return nil
-	}
-}
-
-// Locking is done manually with a separate lock table.  Implementing advisory locks in CRDB is being discussed
-// See: https://github.com/cockroachdb/cockroach/issues/13546
-func (c *CockroachDb) Unlock() error {
-	aid, err := database.GenerateAdvisoryLockId(c.config.DatabaseName)
-	if err != nil {
-		return err
-	}
-
-	// In the event of an implementation (non-migration) error, it is possible for the lock to not be released.  Until
-	// a better locking mechanism is added, a manual purging of the lock table may be required in such circumstances
-	query := "DELETE FROM " + c.config.LockTable + " WHERE lock_id = $1"
-	if _, err := c.db.Exec(query, aid); err != nil {
-		if e, ok := err.(*pq.Error); ok {
-			// 42P01 is "UndefinedTableError" in CockroachDB
-			// https://github.com/cockroachdb/cockroach/blob/master/pkg/sql/pgwire/pgerror/codes.go
-			if e.Code == "42P01" {
-				// On drops, the lock table is fully removed;  This is fine, and is a valid "unlocked" state for the schema
-				c.isLocked = false
-				return nil
-			}
-		}
-		return database.Error{OrigErr: err, Err: "failed to release migration lock", Query: []byte(query)}
-	}
-
-	c.isLocked = false
-	return nil
-}
-
-func (c *CockroachDb) Run(migration io.Reader) error {
-	migr, err := ioutil.ReadAll(migration)
-	if err != nil {
-		return err
-	}
-
-	// run migration
-	query := string(migr[:])
-	if _, err := c.db.Exec(query); err != nil {
-		return database.Error{OrigErr: err, Err: "migration failed", Query: migr}
-	}
-
-	return nil
-}
-
-func (c *CockroachDb) SetVersion(version int, dirty bool) error {
-	return crdb.ExecuteTx(context.Background(), c.db, nil, func(tx *sql.Tx) error {
-		if _, err := tx.Exec(`DELETE FROM "` + c.config.MigrationsTable + `"`); err != nil {
-			return err
-		}
-
-		if version >= 0 {
-			if _, err := tx.Exec(`INSERT INTO "`+c.config.MigrationsTable+`" (version, dirty) VALUES ($1, $2)`, version, dirty); err != nil {
-				return err
-			}
-		}
-
-		return nil
-	})
-}
-
-func (c *CockroachDb) Version() (version int, dirty bool, err error) {
-	query := `SELECT version, dirty FROM "` + c.config.MigrationsTable + `" LIMIT 1`
-	err = c.db.QueryRow(query).Scan(&version, &dirty)
-
-	switch {
-	case err == sql.ErrNoRows:
-		return database.NilVersion, false, nil
-
-	case err != nil:
-		if e, ok := err.(*pq.Error); ok {
-			// 42P01 is "UndefinedTableError" in CockroachDB
-			// https://github.com/cockroachdb/cockroach/blob/master/pkg/sql/pgwire/pgerror/codes.go
-			if e.Code == "42P01" {
-				return database.NilVersion, false, nil
-			}
-		}
-		return 0, false, &database.Error{OrigErr: err, Query: []byte(query)}
-
-	default:
-		return version, dirty, nil
-	}
-}
-
-func (c *CockroachDb) Drop() error {
-	// select all tables in current schema
-	query := `SELECT table_name FROM information_schema.tables WHERE table_schema=(SELECT current_schema())`
-	tables, err := c.db.Query(query)
-	if err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	defer tables.Close()
-
-	// delete one table after another
-	tableNames := make([]string, 0)
-	for tables.Next() {
-		var tableName string
-		if err := tables.Scan(&tableName); err != nil {
-			return err
-		}
-		if len(tableName) > 0 {
-			tableNames = append(tableNames, tableName)
-		}
-	}
-
-	if len(tableNames) > 0 {
-		// delete one by one ...
-		for _, t := range tableNames {
-			query = `DROP TABLE IF EXISTS ` + t + ` CASCADE`
-			if _, err := c.db.Exec(query); err != nil {
-				return &database.Error{OrigErr: err, Query: []byte(query)}
-			}
-		}
-		if err := c.ensureVersionTable(); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func (c *CockroachDb) ensureVersionTable() error {
-	// check if migration table exists
-	var count int
-	query := `SELECT COUNT(1) FROM information_schema.tables WHERE table_name = $1 AND table_schema = (SELECT current_schema()) LIMIT 1`
-	if err := c.db.QueryRow(query, c.config.MigrationsTable).Scan(&count); err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	if count == 1 {
-		return nil
-	}
-
-	// if not, create the empty migration table
-	query = `CREATE TABLE "` + c.config.MigrationsTable + `" (version INT NOT NULL PRIMARY KEY, dirty BOOL NOT NULL)`
-	if _, err := c.db.Exec(query); err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	return nil
-}
-
-func (c *CockroachDb) ensureLockTable() error {
-	// check if lock table exists
-	var count int
-	query := `SELECT COUNT(1) FROM information_schema.tables WHERE table_name = $1 AND table_schema = (SELECT current_schema()) LIMIT 1`
-	if err := c.db.QueryRow(query, c.config.LockTable).Scan(&count); err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	if count == 1 {
-		return nil
-	}
-
-	// if not, create the empty lock table
-	query = `CREATE TABLE "` + c.config.LockTable + `" (lock_id INT NOT NULL PRIMARY KEY)`
-	if _, err := c.db.Exec(query); err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-
-	return nil
-}
@@ -1,141 +0,0 @@
-package cockroachdb
-
-// error codes https://github.com/lib/pq/blob/master/error.go
-
-import (
-	"context"
-	"database/sql"
-	"fmt"
-	"strings"
-	"testing"
-)
-
-import (
-	"github.com/dhui/dktest"
-	_ "github.com/lib/pq"
-)
-
-import (
-	dt "github.com/golang-migrate/migrate/v4/database/testing"
-	"github.com/golang-migrate/migrate/v4/dktesting"
-)
-
-const defaultPort = 26257
-
-var (
-	opts = dktest.Options{Cmd: []string{"start", "--insecure"}, PortRequired: true, ReadyFunc: isReady}
-	// Released versions: https://www.cockroachlabs.com/docs/releases/
-	specs = []dktesting.ContainerSpec{
-		{ImageName: "cockroachdb/cockroach:v1.0.7", Options: opts},
-		{ImageName: "cockroachdb/cockroach:v1.1.9", Options: opts},
-		{ImageName: "cockroachdb/cockroach:v2.0.7", Options: opts},
-		{ImageName: "cockroachdb/cockroach:v2.1.3", Options: opts},
-	}
-)
-
-func isReady(ctx context.Context, c dktest.ContainerInfo) bool {
-	ip, port, err := c.Port(defaultPort)
-	if err != nil {
-		fmt.Println("port error:", err)
-		return false
-	}
-
-	db, err := sql.Open("postgres", fmt.Sprintf("postgres://root@%v:%v?sslmode=disable", ip, port))
-	if err != nil {
-		fmt.Println("open error:", err)
-		return false
-	}
-	if err := db.PingContext(ctx); err != nil {
-		fmt.Println("ping error:", err)
-		return false
-	}
-	db.Close()
-	return true
-}
-
-func createDB(t *testing.T, c dktest.ContainerInfo) {
-	ip, port, err := c.Port(defaultPort)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	db, err := sql.Open("postgres", fmt.Sprintf("postgres://root@%v:%v?sslmode=disable", ip, port))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if err = db.Ping(); err != nil {
-		t.Fatal(err)
-	}
-	defer db.Close()
-
-	if _, err = db.Exec("CREATE DATABASE migrate"); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func Test(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, ci dktest.ContainerInfo) {
-		createDB(t, ci)
-
-		ip, port, err := ci.Port(26257)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := fmt.Sprintf("cockroach://root@%v:%v/migrate?sslmode=disable", ip, port)
-		c := &CockroachDb{}
-		d, err := c.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		dt.Test(t, d, []byte("SELECT 1"))
-	})
-}
-
-func TestMultiStatement(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, ci dktest.ContainerInfo) {
-		createDB(t, ci)
-
-		ip, port, err := ci.Port(26257)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := fmt.Sprintf("cockroach://root@%v:%v/migrate?sslmode=disable", ip, port)
-		c := &CockroachDb{}
-		d, err := c.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		if err := d.Run(strings.NewReader("CREATE TABLE foo (foo text); CREATE TABLE bar (bar text);")); err != nil {
-			t.Fatalf("expected err to be nil, got %v", err)
-		}
-
-		// make sure second table exists
-		var exists bool
-		if err := d.(*CockroachDb).db.QueryRow("SELECT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'bar' AND table_schema = (SELECT current_schema()))").Scan(&exists); err != nil {
-			t.Fatal(err)
-		}
-		if !exists {
-			t.Fatalf("expected table bar to exist")
-		}
-	})
-}
-
-func TestFilterCustomQuery(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, ci dktest.ContainerInfo) {
-		createDB(t, ci)
-
-		ip, port, err := ci.Port(26257)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := fmt.Sprintf("cockroach://root@%v:%v/migrate?sslmode=disable&x-custom=foobar", ip, port)
-		c := &CockroachDb{}
-		_, err = c.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-	})
-}
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS users;
@@ -1,5 +0,0 @@
-CREATE TABLE users (
-  user_id INT UNIQUE,
-  name    STRING(40),
-  email   STRING(40)
-);
@@ -1 +0,0 @@
-ALTER TABLE users DROP COLUMN IF EXISTS city;
@@ -1 +0,0 @@
-ALTER TABLE users ADD COLUMN city TEXT;
@@ -1 +0,0 @@
-DROP INDEX IF EXISTS users_email_index;
@@ -1,3 +0,0 @@
-CREATE UNIQUE INDEX IF NOT EXISTS users_email_index ON users (email);
-
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS books;
@@ -1,5 +0,0 @@
-CREATE TABLE books (
-  user_id INT,
-  name    STRING(40),
-  author  STRING(40)
-);
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS movies;
@@ -1,5 +0,0 @@
-CREATE TABLE movies (
-  user_id   INT,
-  name      STRING(40),
-  director  STRING(40)
-);
@@ -1 +0,0 @@
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1 +0,0 @@
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1 +0,0 @@
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1 +0,0 @@
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1,124 +0,0 @@
-// Package database provides the Database interface.
-// All database drivers must implement this interface, register themselves,
-// optionally provide a `WithInstance` function and pass the tests
-// in package database/testing.
-package database
-
-import (
-	"fmt"
-	"io"
-	nurl "net/url"
-	"sync"
-)
-
-var (
-	ErrLocked = fmt.Errorf("can't acquire lock")
-)
-
-const NilVersion int = -1
-
-var driversMu sync.RWMutex
-var drivers = make(map[string]Driver)
-
-// Driver is the interface every database driver must implement.
-//
-// How to implement a database driver?
-//   1. Implement this interface.
-//   2. Optionally, add a function named `WithInstance`.
-//      This function should accept an existing DB instance and a Config{} struct
-//      and return a driver instance.
-//   3. Add a test that calls database/testing.go:Test()
-//   4. Add own tests for Open(), WithInstance() (when provided) and Close().
-//      All other functions are tested by tests in database/testing.
-//      Saves you some time and makes sure all database drivers behave the same way.
-//   5. Call Register in init().
-//   6. Create a migrate/cli/build_<driver-name>.go file
-//   7. Add driver name in 'DATABASE' variable in Makefile
-//
-// Guidelines:
-//   * Don't try to correct user input. Don't assume things.
-//     When in doubt, return an error and explain the situation to the user.
-//   * All configuration input must come from the URL string in func Open()
-//     or the Config{} struct in WithInstance. Don't os.Getenv().
-type Driver interface {
-	// Open returns a new driver instance configured with parameters
-	// coming from the URL string. Migrate will call this function
-	// only once per instance.
-	Open(url string) (Driver, error)
-
-	// Close closes the underlying database instance managed by the driver.
-	// Migrate will call this function only once per instance.
-	Close() error
-
-	// Lock should acquire a database lock so that only one migration process
-	// can run at a time. Migrate will call this function before Run is called.
-	// If the implementation can't provide this functionality, return nil.
-	// Return database.ErrLocked if database is already locked.
-	Lock() error
-
-	// Unlock should release the lock. Migrate will call this function after
-	// all migrations have been run.
-	Unlock() error
-
-	// Run applies a migration to the database. migration is garantueed to be not nil.
-	Run(migration io.Reader) error
-
-	// SetVersion saves version and dirty state.
-	// Migrate will call this function before and after each call to Run.
-	// version must be >= -1. -1 means NilVersion.
-	SetVersion(version int, dirty bool) error
-
-	// Version returns the currently active version and if the database is dirty.
-	// When no migration has been applied, it must return version -1.
-	// Dirty means, a previous migration failed and user interaction is required.
-	Version() (version int, dirty bool, err error)
-
-	// Drop deletes everything in the database.
-	Drop() error
-}
-
-// Open returns a new driver instance.
-func Open(url string) (Driver, error) {
-	u, err := nurl.Parse(url)
-	if err != nil {
-		return nil, fmt.Errorf("Unable to parse URL. Did you escape all reserved URL characters? "+
-			"See: https://github.com/golang-migrate/migrate#database-urls Error: %v", err)
-	}
-
-	if u.Scheme == "" {
-		return nil, fmt.Errorf("database driver: invalid URL scheme")
-	}
-
-	driversMu.RLock()
-	d, ok := drivers[u.Scheme]
-	driversMu.RUnlock()
-	if !ok {
-		return nil, fmt.Errorf("database driver: unknown driver %v (forgotten import?)", u.Scheme)
-	}
-
-	return d.Open(url)
-}
-
-// Register globally registers a driver.
-func Register(name string, driver Driver) {
-	driversMu.Lock()
-	defer driversMu.Unlock()
-	if driver == nil {
-		panic("Register driver is nil")
-	}
-	if _, dup := drivers[name]; dup {
-		panic("Register called twice for driver " + name)
-	}
-	drivers[name] = driver
-}
-
-// List lists the registered drivers
-func List() []string {
-	driversMu.RLock()
-	defer driversMu.RUnlock()
-	names := make([]string, 0, len(drivers))
-	for n := range drivers {
-		names = append(names, n)
-	}
-	return names
-}
@@ -1,8 +0,0 @@
-package database
-
-func ExampleDriver() {
-	// see database/stub for an example
-
-	// database/stub/stub.go has the driver implementation
-	// database/stub/stub_test.go runs database/testing/test.go:Test
-}
@@ -1,27 +0,0 @@
-package database
-
-import (
-	"fmt"
-)
-
-// Error should be used for errors involving queries ran against the database
-type Error struct {
-	// Optional: the line number
-	Line uint
-
-	// Query is a query excerpt
-	Query []byte
-
-	// Err is a useful/helping error message for humans
-	Err string
-
-	// OrigErr is the underlying error
-	OrigErr error
-}
-
-func (e Error) Error() string {
-	if len(e.Err) == 0 {
-		return fmt.Sprintf("%v in line %v: %s", e.OrigErr, e.Line, e.Query)
-	}
-	return fmt.Sprintf("%v in line %v: %s (details: %v)", e.Err, e.Line, e.Query, e.OrigErr)
-}
@@ -1,20 +0,0 @@
-# MongoDB
-
-* Driver work with mongo through [db.runCommands](https://docs.mongodb.com/manual/reference/command/)
-* Migrations support json format. It contains array of commands for `db.runCommand`. Every command is executed in separate request to database 
-* All keys have to be in quotes `"`
-* [Examples](./examples)
-
-# Usage
-
-`mongodb://user:password@host:port/dbname?query`
-
-| URL Query  | WithInstance Config | Description |
-|------------|---------------------|-------------|
-| `x-migrations-table` | `MigrationsTable` | Name of the migrations table |
-| `x-transaction-mode` | `TransactionMode` | If set to `true` wrap commands in [transaction](https://docs.mongodb.com/manual/core/transactions). Available only for replica set. Driver is using [strconv.ParseBool](https://golang.org/pkg/strconv/#ParseBool) for parsing|
-| `dbname` | `DatabaseName` | The name of the database to connect to |
-| `user` | | The user to sign in as. Can be omitted |
-| `password` | | The user's password. Can be omitted | 
-| `host` | | The host to connect to |
-| `port` | | The port to bind to |
@@ -1,5 +0,0 @@
-[
-  {
-    "dropUser": "deminem"
-  }
-]
@@ -1,12 +0,0 @@
-[
-  {
-    "createUser": "deminem",
-    "pwd": "gogo",
-    "roles": [
-      {
-        "role": "readWrite",
-        "db": "testMigration"
-      }
-    ]
-  }
-]
@@ -1,10 +0,0 @@
-[
-  {
-    "dropIndexes": "mycollection",
-    "index": "username_sort_by_asc_created"
-  },
-  {
-    "dropIndexes": "mycollection",
-    "index": "unique_email"
-  }
-]
@@ -1,21 +0,0 @@
-[{
-  "createIndexes": "mycollection",
-  "indexes": [
-    {
-      "key": {
-        "username": 1,
-        "created": -1
-      },
-      "name": "username_sort_by_asc_created",
-      "background": true
-    },
-    {
-      "key": {
-        "email": 1
-      },
-      "name": "unique_email",
-      "unique": true,
-      "background": true
-    }
-  ]
-}]
@@ -1,199 +0,0 @@
-package mongodb
-
-import (
-	"context"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/url"
-	"strconv"
-
-	"github.com/golang-migrate/migrate/v4"
-	"github.com/golang-migrate/migrate/v4/database"
-	"github.com/mongodb/mongo-go-driver/bson"
-	"github.com/mongodb/mongo-go-driver/mongo"
-	"github.com/mongodb/mongo-go-driver/x/network/connstring"
-)
-
-func init() {
-	database.Register("mongodb", &Mongo{})
-}
-
-var DefaultMigrationsCollection = "schema_migrations"
-
-var (
-	ErrNoDatabaseName = fmt.Errorf("no database name")
-	ErrNilConfig      = fmt.Errorf("no config")
-)
-
-type Mongo struct {
-	client *mongo.Client
-	db     *mongo.Database
-
-	config *Config
-}
-
-type Config struct {
-	DatabaseName         string
-	MigrationsCollection string
-	TransactionMode      bool
-}
-
-type versionInfo struct {
-	Version int  `bson:"version"`
-	Dirty   bool `bson:"dirty"`
-}
-
-func WithInstance(instance *mongo.Client, config *Config) (database.Driver, error) {
-	if config == nil {
-		return nil, ErrNilConfig
-	}
-	if len(config.DatabaseName) == 0 {
-		return nil, ErrNoDatabaseName
-	}
-	if len(config.MigrationsCollection) == 0 {
-		config.MigrationsCollection = DefaultMigrationsCollection
-	}
-	mc := &Mongo{
-		client: instance,
-		db:     instance.Database(config.DatabaseName),
-		config: config,
-	}
-	return mc, nil
-}
-
-func (m *Mongo) Open(dsn string) (database.Driver, error) {
-	//connsting is experimental package, but it used for parse connection string in mongo.Connect function
-	uri, err := connstring.Parse(dsn)
-	if err != nil {
-		return nil, err
-	}
-	if len(uri.Database) == 0 {
-		return nil, ErrNoDatabaseName
-	}
-
-	purl, err := url.Parse(dsn)
-	if err != nil {
-		return nil, err
-	}
-	migrationsCollection := purl.Query().Get("x-migrations-collection")
-	if len(migrationsCollection) == 0 {
-		migrationsCollection = DefaultMigrationsCollection
-	}
-
-	transactionMode, _ := strconv.ParseBool(purl.Query().Get("x-transaction-mode"))
-
-	q := migrate.FilterCustomQuery(purl)
-	q.Scheme = "mongodb"
-
-	client, err := mongo.Connect(context.TODO(), q.String())
-	if err != nil {
-		return nil, err
-	}
-	if err = client.Ping(context.TODO(), nil); err != nil {
-		return nil, err
-	}
-	mc, err := WithInstance(client, &Config{
-		DatabaseName:         uri.Database,
-		MigrationsCollection: migrationsCollection,
-		TransactionMode:      transactionMode,
-	})
-	if err != nil {
-		return nil, err
-	}
-	return mc, nil
-}
-
-func (m *Mongo) SetVersion(version int, dirty bool) error {
-	migrationsCollection := m.db.Collection(m.config.MigrationsCollection)
-	if err := migrationsCollection.Drop(context.TODO()); err != nil {
-		return &database.Error{OrigErr: err, Err: "drop migrations collection failed"}
-	}
-	_, err := migrationsCollection.InsertOne(context.TODO(), bson.M{"version": version, "dirty": dirty})
-	if err != nil {
-		return &database.Error{OrigErr: err, Err: "save version failed"}
-	}
-	return nil
-}
-
-func (m *Mongo) Version() (version int, dirty bool, err error) {
-	var versionInfo versionInfo
-	err = m.db.Collection(m.config.MigrationsCollection).FindOne(context.TODO(), nil).Decode(&versionInfo)
-	switch {
-	case err == mongo.ErrNoDocuments:
-		return database.NilVersion, false, nil
-	case err != nil:
-		return 0, false, &database.Error{OrigErr: err, Err: "failed to get migration version"}
-	default:
-		return versionInfo.Version, versionInfo.Dirty, nil
-	}
-}
-
-func (m *Mongo) Run(migration io.Reader) error {
-	migr, err := ioutil.ReadAll(migration)
-	if err != nil {
-		return err
-	}
-	var cmds []bson.D
-	err = bson.UnmarshalExtJSON(migr, true, &cmds)
-	if err != nil {
-		return fmt.Errorf("unmarshaling json error: %s", err)
-	}
-	if m.config.TransactionMode {
-		if err := m.executeCommandsWithTransaction(context.TODO(), cmds); err != nil {
-			return err
-		}
-	} else {
-		if err := m.executeCommands(context.TODO(), cmds); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (m *Mongo) executeCommandsWithTransaction(ctx context.Context, cmds []bson.D) error {
-	err := m.db.Client().UseSession(ctx, func(sessionContext mongo.SessionContext) error {
-		if err := sessionContext.StartTransaction(); err != nil {
-			return &database.Error{OrigErr: err, Err: "failed to start transaction"}
-		}
-		if err := m.executeCommands(sessionContext, cmds); err != nil {
-			//When command execution is failed, it's aborting transaction
-			//If you tried to call abortTransaction, it`s return error that transaction already aborted
-			return err
-		}
-		if err := sessionContext.CommitTransaction(sessionContext); err != nil {
-			return &database.Error{OrigErr: err, Err: "failed to commit transaction"}
-		}
-		return nil
-	})
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-func (m *Mongo) executeCommands(ctx context.Context, cmds []bson.D) error {
-	for _, cmd := range cmds {
-		err := m.db.RunCommand(ctx, cmd).Err()
-		if err != nil {
-			return &database.Error{OrigErr: err, Err: fmt.Sprintf("failed to execute command:%v", cmd)}
-		}
-	}
-	return nil
-}
-
-func (m *Mongo) Close() error {
-	return m.client.Disconnect(context.TODO())
-}
-
-func (m *Mongo) Drop() error {
-	return m.db.Drop(context.TODO())
-}
-
-func (m *Mongo) Lock() error {
-	return nil
-}
-
-func (m *Mongo) Unlock() error {
-	return nil
-}
@@ -1,293 +0,0 @@
-package mongodb
-
-import (
-	"bytes"
-	"context"
-	"fmt"
-	"io"
-	"os"
-	"strconv"
-	"testing"
-	"time"
-)
-
-import (
-	"github.com/dhui/dktest"
-	"github.com/mongodb/mongo-go-driver/bson"
-	"github.com/mongodb/mongo-go-driver/mongo"
-)
-
-import (
-	dt "github.com/golang-migrate/migrate/v4/database/testing"
-	"github.com/golang-migrate/migrate/v4/dktesting"
-)
-
-var (
-	opts = dktest.Options{PortRequired: true, ReadyFunc: isReady}
-	// Supported versions: https://www.mongodb.com/support-policy
-	specs = []dktesting.ContainerSpec{
-		{ImageName: "mongo:3.4", Options: opts},
-		{ImageName: "mongo:3.6", Options: opts},
-		{ImageName: "mongo:4.0", Options: opts},
-	}
-)
-
-func mongoConnectionString(host, port string) string {
-	// there is connect option for excluding serverConnection algorithm
-	// it's let avoid errors with mongo replica set connection in docker container
-	return fmt.Sprintf("mongodb://%s:%s/testMigration?connect=single", host, port)
-}
-
-func isReady(ctx context.Context, c dktest.ContainerInfo) bool {
-	ip, port, err := c.FirstPort()
-	if err != nil {
-		return false
-	}
-
-	client, err := mongo.Connect(ctx, mongoConnectionString(ip, port))
-	if err != nil {
-		return false
-	}
-	defer client.Disconnect(ctx)
-	if err = client.Ping(ctx, nil); err != nil {
-		switch err {
-		case io.EOF:
-			return false
-		default:
-			fmt.Println(err)
-		}
-		return false
-	}
-	return true
-}
-
-func Test(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.FirstPort()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := mongoConnectionString(ip, port)
-		p := &Mongo{}
-		d, err := p.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer d.Close()
-		dt.TestNilVersion(t, d)
-		//TestLockAndUnlock(t, d) driver doesn't support lock on database level
-		dt.TestRun(t, d, bytes.NewReader([]byte(`[{"insert":"hello","documents":[{"wild":"world"}]}]`)))
-		dt.TestSetVersion(t, d)
-		dt.TestDrop(t, d)
-	})
-}
-
-func TestWithAuth(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.FirstPort()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := mongoConnectionString(ip, port)
-		p := &Mongo{}
-		d, err := p.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer d.Close()
-		createUserCMD := []byte(`[{"createUser":"deminem","pwd":"gogo","roles":[{"role":"readWrite","db":"testMigration"}]}]`)
-		err = d.Run(bytes.NewReader(createUserCMD))
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		testcases := []struct {
-			name            string
-			connectUri      string
-			isErrorExpected bool
-		}{
-			{"right auth data", "mongodb://deminem:gogo@%s:%v/testMigration", false},
-			{"wrong auth data", "mongodb://wrong:auth@%s:%v/testMigration", true},
-		}
-		insertCMD := []byte(`[{"insert":"hello","documents":[{"wild":"world"}]}]`)
-
-		for _, tcase := range testcases {
-			//With wrong authenticate `Open` func doesn't return auth error
-			//Because at the moment golang mongo driver doesn't support auth during connection
-			//For getting auth error we should execute database command
-			t.Run(tcase.name, func(t *testing.T) {
-				mc := &Mongo{}
-				d, err := mc.Open(fmt.Sprintf(tcase.connectUri, ip, port))
-				if err != nil {
-					t.Fatalf("%v", err)
-				}
-				defer d.Close()
-				err = d.Run(bytes.NewReader(insertCMD))
-				switch {
-				case tcase.isErrorExpected && err == nil:
-					t.Fatalf("no error when expected")
-				case !tcase.isErrorExpected && err != nil:
-					t.Fatalf("unexpected error: %v", err)
-				}
-			})
-		}
-	})
-}
-
-func TestTransaction(t *testing.T) {
-	transactionSpecs := []dktesting.ContainerSpec{
-		{ImageName: "mongo:4", Options: dktest.Options{PortRequired: true, ReadyFunc: isReady,
-			Cmd: []string{"mongod", "--bind_ip_all", "--replSet", "rs0"}}},
-	}
-	dktesting.ParallelTest(t, transactionSpecs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.FirstPort()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		client, err := mongo.Connect(context.TODO(), mongoConnectionString(ip, port))
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		err = client.Ping(context.TODO(), nil)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		//rs.initiate()
-		err = client.Database("admin").RunCommand(context.TODO(), bson.D{{"replSetInitiate", bson.D{}}}).Err()
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		err = waitForReplicaInit(client)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		d, err := WithInstance(client, &Config{
-			DatabaseName: "testMigration",
-		})
-		defer d.Close()
-		//We have to create collection
-		//transactions don't support operations with creating new dbs, collections
-		//Unique index need for checking transaction aborting
-		insertCMD := []byte(`[
-				{"create":"hello"},
-				{"createIndexes": "hello",
-					"indexes": [{
-						"key": {
-							"wild": 1
-						},
-						"name": "unique_wild",
-						"unique": true,
-						"background": true
-					}]
-			}]`)
-		err = d.Run(bytes.NewReader(insertCMD))
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		testcases := []struct {
-			name            string
-			cmds            []byte
-			documentsCount  int64
-			isErrorExpected bool
-		}{
-			{
-				name: "success transaction",
-				cmds: []byte(`[{"insert":"hello","documents":[
-										{"wild":"world"},
-										{"wild":"west"},
-										{"wild":"natural"}
-									 ]
-								  }]`),
-				documentsCount:  3,
-				isErrorExpected: false,
-			},
-			{
-				name: "failure transaction",
-				//transaction have to be failure - duplicate unique key wild:west
-				//none of the documents should be added
-				cmds: []byte(`[{"insert":"hello","documents":[{"wild":"flower"}]},
-									{"insert":"hello","documents":[
-										{"wild":"cat"},
-										{"wild":"west"}
-									 ]
-								  }]`),
-				documentsCount:  3,
-				isErrorExpected: true,
-			},
-		}
-		for _, tcase := range testcases {
-			t.Run(tcase.name, func(t *testing.T) {
-				client, err := mongo.Connect(context.TODO(), mongoConnectionString(ip, port))
-				if err != nil {
-					t.Fatalf("%v", err)
-				}
-				err = client.Ping(context.TODO(), nil)
-				if err != nil {
-					t.Fatalf("%v", err)
-				}
-				d, err := WithInstance(client, &Config{
-					DatabaseName:    "testMigration",
-					TransactionMode: true,
-				})
-				if err != nil {
-					t.Fatalf("%v", err)
-				}
-				defer d.Close()
-				runErr := d.Run(bytes.NewReader(tcase.cmds))
-				if runErr != nil {
-					if !tcase.isErrorExpected {
-						t.Fatalf("%v", runErr)
-					}
-				}
-				documentsCount, err := client.Database("testMigration").Collection("hello").Count(context.TODO(), nil)
-				if err != nil {
-					t.Fatalf("%v", err)
-				}
-				if tcase.documentsCount != documentsCount {
-					t.Fatalf("expected %d and actual %d documents count not equal. run migration error:%s", tcase.documentsCount, documentsCount, runErr)
-				}
-			})
-		}
-	})
-}
-
-type isMaster struct {
-	IsMaster bool `bson:"ismaster"`
-}
-
-func waitForReplicaInit(client *mongo.Client) error {
-	ticker := time.NewTicker(time.Second * 1)
-	defer ticker.Stop()
-	timeout, err := strconv.Atoi(os.Getenv("MIGRATE_TEST_MONGO_REPLICA_SET_INIT_TIMEOUT"))
-	if err != nil {
-		timeout = 30
-	}
-	timeoutTimer := time.NewTimer(time.Duration(timeout) * time.Second)
-	defer timeoutTimer.Stop()
-	for {
-		select {
-		case <-ticker.C:
-			var status isMaster
-			//Check that node is primary because
-			//during replica set initialization, the first node first becomes a secondary and then becomes the primary
-			//should consider that initialization is completed only after the node has become the primary
-			result := client.Database("admin").RunCommand(context.TODO(), bson.D{{"isMaster", 1}})
-			r, err := result.DecodeBytes()
-			if err != nil {
-				return err
-			}
-			err = bson.Unmarshal(r, &status)
-			if err != nil {
-				return err
-			}
-			if status.IsMaster {
-				return nil
-			}
-		case <-timeoutTimer.C:
-			return fmt.Errorf("replica init timeout")
-		}
-	}
-
-}
@@ -1,54 +0,0 @@
-# MySQL
-
-`mysql://user:password@tcp(host:port)/dbname?query`
-
-| URL Query  | WithInstance Config | Description |
-|------------|---------------------|-------------|
-| `x-migrations-table` | `MigrationsTable` | Name of the migrations table |
-| `dbname` | `DatabaseName` | The name of the database to connect to |
-| `user` | | The user to sign in as |
-| `password` | | The user's password | 
-| `host` | | The host to connect to. |
-| `port` | | The port to bind to. |
-| `tls`  | | TLS / SSL encrypted connection parameter; see [go-sql-driver](https://github.com/go-sql-driver/mysql#tls). Use any name (e.g. `migrate`) if you want to use a custom TLS config (`x-tls-` queries). |
-| `x-tls-ca` | | The location of the CA (certificate authority) file. |
-| `x-tls-cert` | | The location of the client certicicate file. Must be used with `x-tls-key`. |
-| `x-tls-key` | | The location of the private key file. Must be used with `x-tls-cert`. |
-| `x-tls-insecure-skip-verify` | | Whether or not to use SSL (true\|false) | 
-
-## Use with existing client
-
-If you use the MySQL driver with existing database client, you must create the client with parameter `multiStatements=true`:
-
-```go
-package main
-
-import (
-    "database/sql"
-    
-    _ "github.com/go-sql-driver/mysql"
-    "github.com/golang-migrate/migrate"
-    "github.com/golang-migrate/migrate/database/mysql"
-    _ "github.com/golang-migrate/migrate/source/file"
-)
-
-func main() {
-    db, _ := sql.Open("mysql", "user:password@tcp(host:port)/dbname?multiStatements=true")
-    driver, _ := mysql.WithInstance(db, &mysql.Config{})
-    m, _ := migrate.NewWithDatabaseInstance(
-        "file:///migrations",
-        "mysql", 
-        driver,
-    )
-    
-    m.Steps(2)
-}
-```
-
-## Upgrading from v1
-
-1. Write down the current migration version from schema_migrations
-1. `DROP TABLE schema_migrations`
-2. Wrap your existing migrations in transactions ([BEGIN/COMMIT](https://dev.mysql.com/doc/refman/5.7/en/commit.html)) if you use multiple statements within one migration.
-3. Download and install the latest migrate version.
-4. Force the current migration version with `migrate force <current_version>`.
@@ -1,386 +0,0 @@
-// +build go1.9
-
-package mysql
-
-import (
-	"context"
-	"crypto/tls"
-	"crypto/x509"
-	"database/sql"
-	"fmt"
-	"io"
-	"io/ioutil"
-	nurl "net/url"
-	"strconv"
-	"strings"
-)
-
-import (
-	"github.com/go-sql-driver/mysql"
-)
-
-import (
-	"github.com/golang-migrate/migrate/v4"
-	"github.com/golang-migrate/migrate/v4/database"
-)
-
-func init() {
-	database.Register("mysql", &Mysql{})
-}
-
-var DefaultMigrationsTable = "schema_migrations"
-
-var (
-	ErrDatabaseDirty    = fmt.Errorf("database is dirty")
-	ErrNilConfig        = fmt.Errorf("no config")
-	ErrNoDatabaseName   = fmt.Errorf("no database name")
-	ErrAppendPEM        = fmt.Errorf("failed to append PEM")
-	ErrTLSCertKeyConfig = fmt.Errorf("To use TLS client authentication, both x-tls-cert and x-tls-key must not be empty")
-)
-
-type Config struct {
-	MigrationsTable string
-	DatabaseName    string
-}
-
-type Mysql struct {
-	// mysql RELEASE_LOCK must be called from the same conn, so
-	// just do everything over a single conn anyway.
-	conn     *sql.Conn
-	db       *sql.DB
-	isLocked bool
-
-	config *Config
-}
-
-// instance must have `multiStatements` set to true
-func WithInstance(instance *sql.DB, config *Config) (database.Driver, error) {
-	if config == nil {
-		return nil, ErrNilConfig
-	}
-
-	if err := instance.Ping(); err != nil {
-		return nil, err
-	}
-
-	query := `SELECT DATABASE()`
-	var databaseName sql.NullString
-	if err := instance.QueryRow(query).Scan(&databaseName); err != nil {
-		return nil, &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-
-	if len(databaseName.String) == 0 {
-		return nil, ErrNoDatabaseName
-	}
-
-	config.DatabaseName = databaseName.String
-
-	if len(config.MigrationsTable) == 0 {
-		config.MigrationsTable = DefaultMigrationsTable
-	}
-
-	conn, err := instance.Conn(context.Background())
-	if err != nil {
-		return nil, err
-	}
-
-	mx := &Mysql{
-		conn:   conn,
-		db:     instance,
-		config: config,
-	}
-
-	if err := mx.ensureVersionTable(); err != nil {
-		return nil, err
-	}
-
-	return mx, nil
-}
-
-// urlToMySQLConfig takes a net/url URL and returns a go-sql-driver/mysql Config.
-// Manually sets username and password to avoid net/url from url-encoding the reserved URL characters
-func urlToMySQLConfig(u nurl.URL) (*mysql.Config, error) {
-	origUserInfo := u.User
-	u.User = nil
-
-	c, err := mysql.ParseDSN(strings.TrimPrefix(u.String(), "mysql://"))
-	if err != nil {
-		return nil, err
-	}
-	if origUserInfo != nil {
-		c.User = origUserInfo.Username()
-		if p, ok := origUserInfo.Password(); ok {
-			c.Passwd = p
-		}
-	}
-	return c, nil
-}
-
-func (m *Mysql) Open(url string) (database.Driver, error) {
-	purl, err := nurl.Parse(url)
-	if err != nil {
-		return nil, err
-	}
-
-	q := purl.Query()
-	q.Set("multiStatements", "true")
-	purl.RawQuery = q.Encode()
-
-	migrationsTable := purl.Query().Get("x-migrations-table")
-	if len(migrationsTable) == 0 {
-		migrationsTable = DefaultMigrationsTable
-	}
-
-	// use custom TLS?
-	ctls := purl.Query().Get("tls")
-	if len(ctls) > 0 {
-		if _, isBool := readBool(ctls); !isBool && strings.ToLower(ctls) != "skip-verify" {
-			rootCertPool := x509.NewCertPool()
-			pem, err := ioutil.ReadFile(purl.Query().Get("x-tls-ca"))
-			if err != nil {
-				return nil, err
-			}
-
-			if ok := rootCertPool.AppendCertsFromPEM(pem); !ok {
-				return nil, ErrAppendPEM
-			}
-
-			clientCert := make([]tls.Certificate, 0, 1)
-			if ccert, ckey := purl.Query().Get("x-tls-cert"), purl.Query().Get("x-tls-key"); ccert != "" || ckey != "" {
-				if ccert == "" || ckey == "" {
-					return nil, ErrTLSCertKeyConfig
-				}
-				certs, err := tls.LoadX509KeyPair(ccert, ckey)
-				if err != nil {
-					return nil, err
-				}
-				clientCert = append(clientCert, certs)
-			}
-
-			insecureSkipVerify := false
-			if len(purl.Query().Get("x-tls-insecure-skip-verify")) > 0 {
-				x, err := strconv.ParseBool(purl.Query().Get("x-tls-insecure-skip-verify"))
-				if err != nil {
-					return nil, err
-				}
-				insecureSkipVerify = x
-			}
-
-			mysql.RegisterTLSConfig(ctls, &tls.Config{
-				RootCAs:            rootCertPool,
-				Certificates:       clientCert,
-				InsecureSkipVerify: insecureSkipVerify,
-			})
-		}
-	}
-
-	c, err := urlToMySQLConfig(*migrate.FilterCustomQuery(purl))
-	if err != nil {
-		return nil, err
-	}
-	db, err := sql.Open("mysql", c.FormatDSN())
-	if err != nil {
-		return nil, err
-	}
-
-	mx, err := WithInstance(db, &Config{
-		DatabaseName:    purl.Path,
-		MigrationsTable: migrationsTable,
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	return mx, nil
-}
-
-func (m *Mysql) Close() error {
-	connErr := m.conn.Close()
-	dbErr := m.db.Close()
-	if connErr != nil || dbErr != nil {
-		return fmt.Errorf("conn: %v, db: %v", connErr, dbErr)
-	}
-	return nil
-}
-
-func (m *Mysql) Lock() error {
-	if m.isLocked {
-		return database.ErrLocked
-	}
-
-	aid, err := database.GenerateAdvisoryLockId(
-		fmt.Sprintf("%s:%s", m.config.DatabaseName, m.config.MigrationsTable))
-	if err != nil {
-		return err
-	}
-
-	query := "SELECT GET_LOCK(?, 10)"
-	var success bool
-	if err := m.conn.QueryRowContext(context.Background(), query, aid).Scan(&success); err != nil {
-		return &database.Error{OrigErr: err, Err: "try lock failed", Query: []byte(query)}
-	}
-
-	if success {
-		m.isLocked = true
-		return nil
-	}
-
-	return database.ErrLocked
-}
-
-func (m *Mysql) Unlock() error {
-	if !m.isLocked {
-		return nil
-	}
-
-	aid, err := database.GenerateAdvisoryLockId(
-		fmt.Sprintf("%s:%s", m.config.DatabaseName, m.config.MigrationsTable))
-	if err != nil {
-		return err
-	}
-
-	query := `SELECT RELEASE_LOCK(?)`
-	if _, err := m.conn.ExecContext(context.Background(), query, aid); err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-
-	// NOTE: RELEASE_LOCK could return NULL or (or 0 if the code is changed),
-	// in which case isLocked should be true until the timeout expires -- synchronizing
-	// these states is likely not worth trying to do; reconsider the necessity of isLocked.
-
-	m.isLocked = false
-	return nil
-}
-
-func (m *Mysql) Run(migration io.Reader) error {
-	migr, err := ioutil.ReadAll(migration)
-	if err != nil {
-		return err
-	}
-
-	query := string(migr[:])
-	if _, err := m.conn.ExecContext(context.Background(), query); err != nil {
-		return database.Error{OrigErr: err, Err: "migration failed", Query: migr}
-	}
-
-	return nil
-}
-
-func (m *Mysql) SetVersion(version int, dirty bool) error {
-	tx, err := m.conn.BeginTx(context.Background(), &sql.TxOptions{})
-	if err != nil {
-		return &database.Error{OrigErr: err, Err: "transaction start failed"}
-	}
-
-	query := "TRUNCATE `" + m.config.MigrationsTable + "`"
-	if _, err := tx.ExecContext(context.Background(), query); err != nil {
-		tx.Rollback()
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-
-	if version >= 0 {
-		query := "INSERT INTO `" + m.config.MigrationsTable + "` (version, dirty) VALUES (?, ?)"
-		if _, err := tx.ExecContext(context.Background(), query, version, dirty); err != nil {
-			tx.Rollback()
-			return &database.Error{OrigErr: err, Query: []byte(query)}
-		}
-	}
-
-	if err := tx.Commit(); err != nil {
-		return &database.Error{OrigErr: err, Err: "transaction commit failed"}
-	}
-
-	return nil
-}
-
-func (m *Mysql) Version() (version int, dirty bool, err error) {
-	query := "SELECT version, dirty FROM `" + m.config.MigrationsTable + "` LIMIT 1"
-	err = m.conn.QueryRowContext(context.Background(), query).Scan(&version, &dirty)
-	switch {
-	case err == sql.ErrNoRows:
-		return database.NilVersion, false, nil
-
-	case err != nil:
-		if e, ok := err.(*mysql.MySQLError); ok {
-			if e.Number == 0 {
-				return database.NilVersion, false, nil
-			}
-		}
-		return 0, false, &database.Error{OrigErr: err, Query: []byte(query)}
-
-	default:
-		return version, dirty, nil
-	}
-}
-
-func (m *Mysql) Drop() error {
-	// select all tables
-	query := `SHOW TABLES LIKE '%'`
-	tables, err := m.conn.QueryContext(context.Background(), query)
-	if err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	defer tables.Close()
-
-	// delete one table after another
-	tableNames := make([]string, 0)
-	for tables.Next() {
-		var tableName string
-		if err := tables.Scan(&tableName); err != nil {
-			return err
-		}
-		if len(tableName) > 0 {
-			tableNames = append(tableNames, tableName)
-		}
-	}
-
-	if len(tableNames) > 0 {
-		// delete one by one ...
-		for _, t := range tableNames {
-			query = "DROP TABLE IF EXISTS `" + t + "` CASCADE"
-			if _, err := m.conn.ExecContext(context.Background(), query); err != nil {
-				return &database.Error{OrigErr: err, Query: []byte(query)}
-			}
-		}
-		if err := m.ensureVersionTable(); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func (m *Mysql) ensureVersionTable() error {
-	// check if migration table exists
-	var result string
-	query := `SHOW TABLES LIKE "` + m.config.MigrationsTable + `"`
-	if err := m.conn.QueryRowContext(context.Background(), query).Scan(&result); err != nil {
-		if err != sql.ErrNoRows {
-			return &database.Error{OrigErr: err, Query: []byte(query)}
-		}
-	} else {
-		return nil
-	}
-
-	// if not, create the empty migration table
-	query = "CREATE TABLE `" + m.config.MigrationsTable + "` (version bigint not null primary key, dirty boolean not null)"
-	if _, err := m.conn.ExecContext(context.Background(), query); err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	return nil
-}
-
-// Returns the bool value of the input.
-// The 2nd return value indicates if the input was a valid bool value
-// See https://github.com/go-sql-driver/mysql/blob/a059889267dc7170331388008528b3b44479bffb/utils.go#L71
-func readBool(input string) (value bool, valid bool) {
-	switch input {
-	case "1", "true", "TRUE", "True":
-		return true, true
-	case "0", "false", "FALSE", "False":
-		return false, true
-	}
-
-	// Not a valid bool value
-	return
-}
@@ -1,179 +0,0 @@
-package mysql
-
-import (
-	"context"
-	"database/sql"
-	sqldriver "database/sql/driver"
-	"fmt"
-	"net/url"
-	"testing"
-)
-
-import (
-	"github.com/dhui/dktest"
-	"github.com/go-sql-driver/mysql"
-)
-
-import (
-	dt "github.com/golang-migrate/migrate/v4/database/testing"
-	"github.com/golang-migrate/migrate/v4/dktesting"
-)
-
-const defaultPort = 3306
-
-var (
-	opts = dktest.Options{
-		Env:          map[string]string{"MYSQL_ROOT_PASSWORD": "root", "MYSQL_DATABASE": "public"},
-		PortRequired: true, ReadyFunc: isReady,
-	}
-	// Supported versions: https://www.mysql.com/support/supportedplatforms/database.html
-	specs = []dktesting.ContainerSpec{
-		{ImageName: "mysql:5.5", Options: opts},
-		{ImageName: "mysql:5.6", Options: opts},
-		{ImageName: "mysql:5.7", Options: opts},
-		{ImageName: "mysql:8", Options: opts},
-	}
-)
-
-func isReady(ctx context.Context, c dktest.ContainerInfo) bool {
-	ip, port, err := c.Port(defaultPort)
-	if err != nil {
-		return false
-	}
-
-	db, err := sql.Open("mysql", fmt.Sprintf("root:root@tcp(%v:%v)/public", ip, port))
-	if err != nil {
-		return false
-	}
-	defer db.Close()
-	if err = db.PingContext(ctx); err != nil {
-		switch err {
-		case sqldriver.ErrBadConn, mysql.ErrInvalidConn:
-			return false
-		default:
-			fmt.Println(err)
-		}
-		return false
-	}
-
-	return true
-}
-
-func Test(t *testing.T) {
-	// mysql.SetLogger(mysql.Logger(log.New(ioutil.Discard, "", log.Ltime)))
-
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.Port(defaultPort)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := fmt.Sprintf("mysql://root:root@tcp(%v:%v)/public", ip, port)
-		p := &Mysql{}
-		d, err := p.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer d.Close()
-		dt.Test(t, d, []byte("SELECT 1"))
-
-		// check ensureVersionTable
-		if err := d.(*Mysql).ensureVersionTable(); err != nil {
-			t.Fatal(err)
-		}
-		// check again
-		if err := d.(*Mysql).ensureVersionTable(); err != nil {
-			t.Fatal(err)
-		}
-	})
-}
-
-func TestLockWorks(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.Port(defaultPort)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := fmt.Sprintf("mysql://root:root@tcp(%v:%v)/public", ip, port)
-		p := &Mysql{}
-		d, err := p.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		dt.Test(t, d, []byte("SELECT 1"))
-
-		ms := d.(*Mysql)
-
-		err = ms.Lock()
-		if err != nil {
-			t.Fatal(err)
-		}
-		err = ms.Unlock()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		// make sure the 2nd lock works (RELEASE_LOCK is very finicky)
-		err = ms.Lock()
-		if err != nil {
-			t.Fatal(err)
-		}
-		err = ms.Unlock()
-		if err != nil {
-			t.Fatal(err)
-		}
-	})
-}
-
-func TestURLToMySQLConfig(t *testing.T) {
-	testcases := []struct {
-		name        string
-		urlStr      string
-		expectedDSN string // empty string signifies that an error is expected
-	}{
-		{name: "no user/password", urlStr: "mysql://tcp(127.0.0.1:3306)/myDB?multiStatements=true",
-			expectedDSN: "tcp(127.0.0.1:3306)/myDB?multiStatements=true"},
-		{name: "only user", urlStr: "mysql://username@tcp(127.0.0.1:3306)/myDB?multiStatements=true",
-			expectedDSN: "username@tcp(127.0.0.1:3306)/myDB?multiStatements=true"},
-		{name: "only user - with encoded :",
-			urlStr:      "mysql://username%3A@tcp(127.0.0.1:3306)/myDB?multiStatements=true",
-			expectedDSN: "username:@tcp(127.0.0.1:3306)/myDB?multiStatements=true"},
-		{name: "only user - with encoded @",
-			urlStr:      "mysql://username%40@tcp(127.0.0.1:3306)/myDB?multiStatements=true",
-			expectedDSN: "username@@tcp(127.0.0.1:3306)/myDB?multiStatements=true"},
-		{name: "user/password", urlStr: "mysql://username:password@tcp(127.0.0.1:3306)/myDB?multiStatements=true",
-			expectedDSN: "username:password@tcp(127.0.0.1:3306)/myDB?multiStatements=true"},
-		// Not supported yet: https://github.com/go-sql-driver/mysql/issues/591
-		// {name: "user/password - user with encoded :",
-		// 	urlStr:      "mysql://username%3A:password@tcp(127.0.0.1:3306)/myDB?multiStatements=true",
-		// 	expectedDSN: "username::pasword@tcp(127.0.0.1:3306)/myDB?multiStatements=true"},
-		{name: "user/password - user with encoded @",
-			urlStr:      "mysql://username%40:password@tcp(127.0.0.1:3306)/myDB?multiStatements=true",
-			expectedDSN: "username@:password@tcp(127.0.0.1:3306)/myDB?multiStatements=true"},
-		{name: "user/password - password with encoded :",
-			urlStr:      "mysql://username:password%3A@tcp(127.0.0.1:3306)/myDB?multiStatements=true",
-			expectedDSN: "username:password:@tcp(127.0.0.1:3306)/myDB?multiStatements=true"},
-		{name: "user/password - password with encoded @",
-			urlStr:      "mysql://username:password%40@tcp(127.0.0.1:3306)/myDB?multiStatements=true",
-			expectedDSN: "username:password@@tcp(127.0.0.1:3306)/myDB?multiStatements=true"},
-	}
-	for _, tc := range testcases {
-		t.Run(tc.name, func(t *testing.T) {
-			u, err := url.Parse(tc.urlStr)
-			if err != nil {
-				t.Fatal("Failed to parse url string:", tc.urlStr, "error:", err)
-			}
-			if config, err := urlToMySQLConfig(*u); err == nil {
-				dsn := config.FormatDSN()
-				if dsn != tc.expectedDSN {
-					t.Error("Got unexpected DSN:", dsn, "!=", tc.expectedDSN)
-				}
-			} else {
-				if tc.expectedDSN != "" {
-					t.Error("Got unexpected error:", err, "urlStr:", tc.urlStr)
-				}
-			}
-		})
-	}
-}
@@ -1,244 +0,0 @@
-package database_test
-
-import (
-	"encoding/hex"
-	"net/url"
-	"strings"
-	"testing"
-)
-
-const reservedChars = "!#$%&'()*+,/:;=?@[]"
-
-// TestUserUnencodedReservedURLChars documents the behavior of using unencoded reserved characters in usernames with
-// net/url Parse()
-func TestUserUnencodedReservedURLChars(t *testing.T) {
-	scheme := "database://"
-	baseUsername := "username"
-	urlSuffix := "password@localhost:12345/myDB?someParam=true"
-	urlSuffixAndSep := ":" + urlSuffix
-
-	testcases := []struct {
-		char             string
-		parses           bool
-		expectedUsername string // empty string means that the username failed to parse
-		encodedURL       string
-	}{
-		{char: "!", parses: true, expectedUsername: baseUsername + "!",
-			encodedURL: scheme + baseUsername + "%21" + urlSuffixAndSep},
-		{char: "#", parses: true, expectedUsername: "",
-			encodedURL: scheme + baseUsername + "#" + urlSuffixAndSep},
-		{char: "$", parses: true, expectedUsername: baseUsername + "$",
-			encodedURL: scheme + baseUsername + "$" + urlSuffixAndSep},
-		{char: "%", parses: false},
-		{char: "&", parses: true, expectedUsername: baseUsername + "&",
-			encodedURL: scheme + baseUsername + "&" + urlSuffixAndSep},
-		{char: "'", parses: true, expectedUsername: "username'",
-			encodedURL: scheme + baseUsername + "%27" + urlSuffixAndSep},
-		{char: "(", parses: true, expectedUsername: "username(",
-			encodedURL: scheme + baseUsername + "%28" + urlSuffixAndSep},
-		{char: ")", parses: true, expectedUsername: "username)",
-			encodedURL: scheme + baseUsername + "%29" + urlSuffixAndSep},
-		{char: "*", parses: true, expectedUsername: "username*",
-			encodedURL: scheme + baseUsername + "%2A" + urlSuffixAndSep},
-		{char: "+", parses: true, expectedUsername: "username+",
-			encodedURL: scheme + baseUsername + "+" + urlSuffixAndSep},
-		{char: ",", parses: true, expectedUsername: "username,",
-			encodedURL: scheme + baseUsername + "," + urlSuffixAndSep},
-		{char: "/", parses: true, expectedUsername: "",
-			encodedURL: scheme + baseUsername + "/" + urlSuffixAndSep},
-		{char: ":", parses: true, expectedUsername: "username",
-			encodedURL: scheme + baseUsername + ":%3A" + urlSuffix},
-		{char: ";", parses: true, expectedUsername: "username;",
-			encodedURL: scheme + baseUsername + ";" + urlSuffixAndSep},
-		{char: "=", parses: true, expectedUsername: "username=",
-			encodedURL: scheme + baseUsername + "=" + urlSuffixAndSep},
-		{char: "?", parses: true, expectedUsername: "",
-			encodedURL: scheme + baseUsername + "?" + urlSuffixAndSep},
-		{char: "@", parses: true, expectedUsername: "username@",
-			encodedURL: scheme + baseUsername + "%40" + urlSuffixAndSep},
-		{char: "[", parses: false},
-		{char: "]", parses: false},
-	}
-
-	testedChars := make([]string, 0, len(reservedChars))
-	for _, tc := range testcases {
-		testedChars = append(testedChars, tc.char)
-		t.Run("reserved char "+tc.char, func(t *testing.T) {
-			s := scheme + baseUsername + tc.char + urlSuffixAndSep
-			u, err := url.Parse(s)
-			if err == nil {
-				if !tc.parses {
-					t.Error("Unexpectedly parsed reserved character. url:", s)
-					return
-				}
-				var username string
-				if u.User != nil {
-					username = u.User.Username()
-				}
-				if username != tc.expectedUsername {
-					t.Error("Got unexpected username:", username, "!=", tc.expectedUsername)
-				}
-				if s := u.String(); s != tc.encodedURL {
-					t.Error("Got unexpected encoded URL:", s, "!=", tc.encodedURL)
-				}
-			} else {
-				if tc.parses {
-					t.Error("Failed to parse reserved character. url:", s)
-				}
-			}
-		})
-	}
-
-	t.Run("All reserved chars tested", func(t *testing.T) {
-		if s := strings.Join(testedChars, ""); s != reservedChars {
-			t.Error("Not all reserved URL characters were tested:", s, "!=", reservedChars)
-		}
-	})
-}
-
-func TestUserEncodedReservedURLChars(t *testing.T) {
-	scheme := "database://"
-	baseUsername := "username"
-	urlSuffix := "password@localhost:12345/myDB?someParam=true"
-	urlSuffixAndSep := ":" + urlSuffix
-
-	for _, c := range reservedChars {
-		c := string(c)
-		t.Run("reserved char "+c, func(t *testing.T) {
-			encodedChar := "%" + hex.EncodeToString([]byte(c))
-			s := scheme + baseUsername + encodedChar + urlSuffixAndSep
-			expectedUsername := baseUsername + c
-			u, err := url.Parse(s)
-			if err != nil {
-				t.Fatal("Failed to parse url with encoded reserved character. url:", s)
-			}
-			if u.User == nil {
-				t.Fatal("Failed to parse userinfo with encoded reserve character. url:", s)
-			}
-			if username := u.User.Username(); username != expectedUsername {
-				t.Fatal("Got unexpected username:", username, "!=", expectedUsername)
-			}
-		})
-	}
-}
-
-// TestPasswordUnencodedReservedURLChars documents the behavior of using unencoded reserved characters in passwords
-// with net/url Parse()
-func TestPasswordUnencodedReservedURLChars(t *testing.T) {
-	username := "username"
-	schemeAndUsernameAndSep := "database://" + username + ":"
-	basePassword := "password"
-	urlSuffixAndSep := "@localhost:12345/myDB?someParam=true"
-
-	testcases := []struct {
-		char             string
-		parses           bool
-		expectedUsername string // empty string means that the username failed to parse
-		expectedPassword string // empty string means that the password failed to parse
-		encodedURL       string
-	}{
-		{char: "!", parses: true, expectedUsername: username, expectedPassword: basePassword + "!",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "%21" + urlSuffixAndSep},
-		{char: "#", parses: true, expectedUsername: "", expectedPassword: "",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "#" + urlSuffixAndSep},
-		{char: "$", parses: true, expectedUsername: username, expectedPassword: basePassword + "$",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "$" + urlSuffixAndSep},
-		{char: "%", parses: false},
-		{char: "&", parses: true, expectedUsername: username, expectedPassword: basePassword + "&",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "&" + urlSuffixAndSep},
-		{char: "'", parses: true, expectedUsername: username, expectedPassword: "password'",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "%27" + urlSuffixAndSep},
-		{char: "(", parses: true, expectedUsername: username, expectedPassword: "password(",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "%28" + urlSuffixAndSep},
-		{char: ")", parses: true, expectedUsername: username, expectedPassword: "password)",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "%29" + urlSuffixAndSep},
-		{char: "*", parses: true, expectedUsername: username, expectedPassword: "password*",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "%2A" + urlSuffixAndSep},
-		{char: "+", parses: true, expectedUsername: username, expectedPassword: "password+",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "+" + urlSuffixAndSep},
-		{char: ",", parses: true, expectedUsername: username, expectedPassword: "password,",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "," + urlSuffixAndSep},
-		{char: "/", parses: true, expectedUsername: "", expectedPassword: "",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "/" + urlSuffixAndSep},
-		{char: ":", parses: true, expectedUsername: username, expectedPassword: "password:",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "%3A" + urlSuffixAndSep},
-		{char: ";", parses: true, expectedUsername: username, expectedPassword: "password;",
-			encodedURL: schemeAndUsernameAndSep + basePassword + ";" + urlSuffixAndSep},
-		{char: "=", parses: true, expectedUsername: username, expectedPassword: "password=",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "=" + urlSuffixAndSep},
-		{char: "?", parses: true, expectedUsername: "", expectedPassword: "",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "?" + urlSuffixAndSep},
-		{char: "@", parses: true, expectedUsername: username, expectedPassword: "password@",
-			encodedURL: schemeAndUsernameAndSep + basePassword + "%40" + urlSuffixAndSep},
-		{char: "[", parses: false},
-		{char: "]", parses: false},
-	}
-
-	testedChars := make([]string, 0, len(reservedChars))
-	for _, tc := range testcases {
-		testedChars = append(testedChars, tc.char)
-		t.Run("reserved char "+tc.char, func(t *testing.T) {
-			s := schemeAndUsernameAndSep + basePassword + tc.char + urlSuffixAndSep
-			u, err := url.Parse(s)
-			if err == nil {
-				if !tc.parses {
-					t.Error("Unexpectedly parsed reserved character. url:", s)
-					return
-				}
-				var username, password string
-				if u.User != nil {
-					username = u.User.Username()
-					password, _ = u.User.Password()
-				}
-				if username != tc.expectedUsername {
-					t.Error("Got unexpected username:", username, "!=", tc.expectedUsername)
-				}
-				if password != tc.expectedPassword {
-					t.Error("Got unexpected password:", password, "!=", tc.expectedPassword)
-				}
-				if s := u.String(); s != tc.encodedURL {
-					t.Error("Got unexpected encoded URL:", s, "!=", tc.encodedURL)
-				}
-			} else {
-				if tc.parses {
-					t.Error("Failed to parse reserved character. url:", s)
-				}
-			}
-		})
-	}
-
-	t.Run("All reserved chars tested", func(t *testing.T) {
-		if s := strings.Join(testedChars, ""); s != reservedChars {
-			t.Error("Not all reserved URL characters were tested:", s, "!=", reservedChars)
-		}
-	})
-}
-
-func TestPasswordEncodedReservedURLChars(t *testing.T) {
-	username := "username"
-	schemeAndUsernameAndSep := "database://" + username + ":"
-	basePassword := "password"
-	urlSuffixAndSep := "@localhost:12345/myDB?someParam=true"
-
-	for _, c := range reservedChars {
-		c := string(c)
-		t.Run("reserved char "+c, func(t *testing.T) {
-			encodedChar := "%" + hex.EncodeToString([]byte(c))
-			s := schemeAndUsernameAndSep + basePassword + encodedChar + urlSuffixAndSep
-			expectedPassword := basePassword + c
-			u, err := url.Parse(s)
-			if err != nil {
-				t.Fatal("Failed to parse url with encoded reserved character. url:", s)
-			}
-			if u.User == nil {
-				t.Fatal("Failed to parse userinfo with encoded reserve character. url:", s)
-			}
-			if n := u.User.Username(); n != username {
-				t.Fatal("Got unexpected username:", n, "!=", username)
-			}
-			if p, _ := u.User.Password(); p != expectedPassword {
-				t.Fatal("Got unexpected password:", p, "!=", expectedPassword)
-			}
-		})
-	}
-}
@@ -1,28 +0,0 @@
-# postgres
-
-`postgres://user:password@host:port/dbname?query` (`postgresql://` works, too)
-
-| URL Query  | WithInstance Config | Description |
-|------------|---------------------|-------------|
-| `x-migrations-table` | `MigrationsTable` | Name of the migrations table |
-| `dbname` | `DatabaseName` | The name of the database to connect to |
-| `search_path` | | This variable specifies the order in which schemas are searched when an object is referenced by a simple name with no schema specified. |
-| `user` | | The user to sign in as |
-| `password` | | The user's password | 
-| `host` | | The host to connect to. Values that start with / are for unix domain sockets. (default is localhost) |
-| `port` | | The port to bind to. (default is 5432) |
-| `fallback_application_name` | | An application_name to fall back to if one isn't provided. |
-| `connect_timeout` | | Maximum wait for connection, in seconds. Zero or not specified means wait indefinitely. |
-| `sslcert` | | Cert file location. The file must contain PEM encoded data. |
-| `sslkey` | | Key file location. The file must contain PEM encoded data. |
-| `sslrootcert` | | The location of the root certificate file. The file must contain PEM encoded data. | 
-| `sslmode` | | Whether or not to use SSL (disable\|require\|verify-ca\|verify-full) |
-
-
-## Upgrading from v1
-
-1. Write down the current migration version from schema_migrations
-1. `DROP TABLE schema_migrations`
-2. Wrap your existing migrations in transactions ([BEGIN/COMMIT](https://www.postgresql.org/docs/current/static/transaction-iso.html)) if you use multiple statements within one migration.
-3. Download and install the latest migrate version.
-4. Force the current migration version with `migrate force <current_version>`.
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS users;
@@ -1,5 +0,0 @@
-CREATE TABLE users (
-  user_id integer unique,
-  name    varchar(40),
-  email   varchar(40)
-);
@@ -1 +0,0 @@
-ALTER TABLE users DROP COLUMN IF EXISTS city;
@@ -1,3 +0,0 @@
-ALTER TABLE users ADD COLUMN city varchar(100);
-
-
@@ -1 +0,0 @@
-DROP INDEX IF EXISTS users_email_index;
@@ -1,3 +0,0 @@
-CREATE UNIQUE INDEX CONCURRENTLY users_email_index ON users (email);
-
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS books;
@@ -1,5 +0,0 @@
-CREATE TABLE books (
-  user_id integer,
-  name    varchar(40),
-  author  varchar(40)
-);
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS movies;
@@ -1,5 +0,0 @@
-CREATE TABLE movies (
-  user_id   integer,
-  name      varchar(40),
-  director  varchar(40)
-);
@@ -1 +0,0 @@
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1 +0,0 @@
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1 +0,0 @@
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1 +0,0 @@
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1,357 +0,0 @@
-// +build go1.9
-
-package postgres
-
-import (
-	"context"
-	"database/sql"
-	"fmt"
-	"io"
-	"io/ioutil"
-	nurl "net/url"
-	"strconv"
-	"strings"
-
-	"github.com/golang-migrate/migrate/v4"
-	"github.com/golang-migrate/migrate/v4/database"
-	multierror "github.com/hashicorp/go-multierror"
-	"github.com/lib/pq"
-)
-
-func init() {
-	db := Postgres{}
-	database.Register("postgres", &db)
-	database.Register("postgresql", &db)
-}
-
-var DefaultMigrationsTable = "schema_migrations"
-
-var (
-	ErrNilConfig      = fmt.Errorf("no config")
-	ErrNoDatabaseName = fmt.Errorf("no database name")
-	ErrNoSchema       = fmt.Errorf("no schema")
-	ErrDatabaseDirty  = fmt.Errorf("database is dirty")
-)
-
-type Config struct {
-	MigrationsTable string
-	DatabaseName    string
-	SchemaName      string
-}
-
-type Postgres struct {
-	// Locking and unlocking need to use the same connection
-	conn     *sql.Conn
-	db       *sql.DB
-	isLocked bool
-
-	// Open and WithInstance need to garantuee that config is never nil
-	config *Config
-}
-
-func WithInstance(instance *sql.DB, config *Config) (database.Driver, error) {
-	if config == nil {
-		return nil, ErrNilConfig
-	}
-
-	if err := instance.Ping(); err != nil {
-		return nil, err
-	}
-
-	query := `SELECT CURRENT_DATABASE()`
-	var databaseName string
-	if err := instance.QueryRow(query).Scan(&databaseName); err != nil {
-		return nil, &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-
-	if len(databaseName) == 0 {
-		return nil, ErrNoDatabaseName
-	}
-
-	config.DatabaseName = databaseName
-
-	query = `SELECT CURRENT_SCHEMA()`
-	var schemaName string
-	if err := instance.QueryRow(query).Scan(&schemaName); err != nil {
-		return nil, &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-
-	if len(schemaName) == 0 {
-		return nil, ErrNoSchema
-	}
-
-	config.SchemaName = schemaName
-
-	if len(config.MigrationsTable) == 0 {
-		config.MigrationsTable = DefaultMigrationsTable
-	}
-
-	conn, err := instance.Conn(context.Background())
-
-	if err != nil {
-		return nil, err
-	}
-
-	px := &Postgres{
-		conn:   conn,
-		db:     instance,
-		config: config,
-	}
-
-	if err := px.ensureVersionTable(); err != nil {
-		return nil, err
-	}
-
-	return px, nil
-}
-
-func (p *Postgres) Open(url string) (database.Driver, error) {
-	purl, err := nurl.Parse(url)
-	if err != nil {
-		return nil, err
-	}
-
-	db, err := sql.Open("postgres", migrate.FilterCustomQuery(purl).String())
-	if err != nil {
-		return nil, err
-	}
-
-	migrationsTable := purl.Query().Get("x-migrations-table")
-	if len(migrationsTable) == 0 {
-		migrationsTable = DefaultMigrationsTable
-	}
-
-	px, err := WithInstance(db, &Config{
-		DatabaseName:    purl.Path,
-		MigrationsTable: migrationsTable,
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	return px, nil
-}
-
-func (p *Postgres) Close() error {
-	connErr := p.conn.Close()
-	dbErr := p.db.Close()
-	if connErr != nil || dbErr != nil {
-		return fmt.Errorf("conn: %v, db: %v", connErr, dbErr)
-	}
-	return nil
-}
-
-// https://www.postgresql.org/docs/9.6/static/explicit-locking.html#ADVISORY-LOCKS
-func (p *Postgres) Lock() error {
-	if p.isLocked {
-		return database.ErrLocked
-	}
-
-	aid, err := database.GenerateAdvisoryLockId(p.config.DatabaseName, p.config.SchemaName)
-	if err != nil {
-		return err
-	}
-
-	// This will either obtain the lock immediately and return true,
-	// or return false if the lock cannot be acquired immediately.
-	query := `SELECT pg_advisory_lock($1)`
-	if _, err := p.conn.ExecContext(context.Background(), query, aid); err != nil {
-		return &database.Error{OrigErr: err, Err: "try lock failed", Query: []byte(query)}
-	}
-
-	p.isLocked = true
-	return nil
-}
-
-func (p *Postgres) Unlock() error {
-	if !p.isLocked {
-		return nil
-	}
-
-	aid, err := database.GenerateAdvisoryLockId(p.config.DatabaseName, p.config.SchemaName)
-	if err != nil {
-		return err
-	}
-
-	query := `SELECT pg_advisory_unlock($1)`
-	if _, err := p.conn.ExecContext(context.Background(), query, aid); err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	p.isLocked = false
-	return nil
-}
-
-func (p *Postgres) Run(migration io.Reader) error {
-	migr, err := ioutil.ReadAll(migration)
-	if err != nil {
-		return err
-	}
-
-	// run migration
-	query := string(migr[:])
-	if _, err := p.conn.ExecContext(context.Background(), query); err != nil {
-		if pgErr, ok := err.(*pq.Error); ok {
-			var line uint
-			var col uint
-			var lineColOK bool
-			if pgErr.Position != "" {
-				if pos, err := strconv.ParseUint(pgErr.Position, 10, 64); err == nil {
-					line, col, lineColOK = computeLineFromPos(query, int(pos))
-				}
-			}
-			message := fmt.Sprintf("migration failed: %s", pgErr.Message)
-			if lineColOK {
-				message = fmt.Sprintf("%s (column %d)", message, col)
-			}
-			if pgErr.Detail != "" {
-				message = fmt.Sprintf("%s, %s", message, pgErr.Detail)
-			}
-			return database.Error{OrigErr: err, Err: message, Query: migr, Line: line}
-		}
-		return database.Error{OrigErr: err, Err: "migration failed", Query: migr}
-	}
-
-	return nil
-}
-
-func computeLineFromPos(s string, pos int) (line uint, col uint, ok bool) {
-	// replace crlf with lf
-	s = strings.Replace(s, "\r\n", "\n", -1)
-	// pg docs: pos uses index 1 for the first character, and positions are measured in characters not bytes
-	runes := []rune(s)
-	if pos > len(runes) {
-		return 0, 0, false
-	}
-	sel := runes[:pos]
-	line = uint(runesCount(sel, newLine) + 1)
-	col = uint(pos - 1 - runesLastIndex(sel, newLine))
-	return line, col, true
-}
-
-const newLine = '\n'
-
-func runesCount(input []rune, target rune) int {
-	var count int
-	for _, r := range input {
-		if r == target {
-			count++
-		}
-	}
-	return count
-}
-
-func runesLastIndex(input []rune, target rune) int {
-	for i := len(input) - 1; i >= 0; i-- {
-		if input[i] == target {
-			return i
-		}
-	}
-	return -1
-}
-
-func (p *Postgres) SetVersion(version int, dirty bool) error {
-	tx, err := p.conn.BeginTx(context.Background(), &sql.TxOptions{})
-	if err != nil {
-		return &database.Error{OrigErr: err, Err: "transaction start failed"}
-	}
-
-	query := `TRUNCATE "` + p.config.MigrationsTable + `"`
-	if _, err := tx.Exec(query); err != nil {
-		tx.Rollback()
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-
-	if version >= 0 {
-		query = `INSERT INTO "` + p.config.MigrationsTable + `" (version, dirty) VALUES ($1, $2)`
-		if _, err := tx.Exec(query, version, dirty); err != nil {
-			tx.Rollback()
-			return &database.Error{OrigErr: err, Query: []byte(query)}
-		}
-	}
-
-	if err := tx.Commit(); err != nil {
-		return &database.Error{OrigErr: err, Err: "transaction commit failed"}
-	}
-
-	return nil
-}
-
-func (p *Postgres) Version() (version int, dirty bool, err error) {
-	query := `SELECT version, dirty FROM "` + p.config.MigrationsTable + `" LIMIT 1`
-	err = p.conn.QueryRowContext(context.Background(), query).Scan(&version, &dirty)
-	switch {
-	case err == sql.ErrNoRows:
-		return database.NilVersion, false, nil
-
-	case err != nil:
-		if e, ok := err.(*pq.Error); ok {
-			if e.Code.Name() == "undefined_table" {
-				return database.NilVersion, false, nil
-			}
-		}
-		return 0, false, &database.Error{OrigErr: err, Query: []byte(query)}
-
-	default:
-		return version, dirty, nil
-	}
-}
-
-func (p *Postgres) Drop() error {
-	// select all tables in current schema
-	query := `SELECT table_name FROM information_schema.tables WHERE table_schema=(SELECT current_schema()) AND table_type='BASE TABLE'`
-	tables, err := p.conn.QueryContext(context.Background(), query)
-	if err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	defer tables.Close()
-
-	// delete one table after another
-	tableNames := make([]string, 0)
-	for tables.Next() {
-		var tableName string
-		if err := tables.Scan(&tableName); err != nil {
-			return err
-		}
-		if len(tableName) > 0 {
-			tableNames = append(tableNames, tableName)
-		}
-	}
-
-	if len(tableNames) > 0 {
-		// delete one by one ...
-		for _, t := range tableNames {
-			query = `DROP TABLE IF EXISTS ` + t + ` CASCADE`
-			if _, err := p.conn.ExecContext(context.Background(), query); err != nil {
-				return &database.Error{OrigErr: err, Query: []byte(query)}
-			}
-		}
-		if err := p.ensureVersionTable(); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func (p *Postgres) ensureVersionTable() (err error) {
-	if err = p.Lock(); err != nil {
-		return err
-	}
-
-	defer func() {
-		if e := p.Unlock(); e != nil {
-			if err == nil {
-				err = e
-			} else {
-				err = multierror.Append(err, e)
-			}
-		}
-	}()
-
-	query := `CREATE TABLE IF NOT EXISTS "` + p.config.MigrationsTable + `" (version bigint not null primary key, dirty boolean not null)`
-	if _, err = p.conn.ExecContext(context.Background(), query); err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-
-	return nil
-}
@@ -1,427 +0,0 @@
-package postgres
-
-// error codes https://github.com/lib/pq/blob/master/error.go
-
-import (
-	"context"
-	"database/sql"
-	sqldriver "database/sql/driver"
-	"fmt"
-	"io"
-	"strconv"
-	"strings"
-	"sync"
-	"testing"
-
-	"github.com/dhui/dktest"
-
-	dt "github.com/golang-migrate/migrate/v4/database/testing"
-	"github.com/golang-migrate/migrate/v4/dktesting"
-)
-
-var (
-	opts = dktest.Options{PortRequired: true, ReadyFunc: isReady}
-	// Supported versions: https://www.postgresql.org/support/versioning/
-	specs = []dktesting.ContainerSpec{
-		{ImageName: "postgres:9.4", Options: opts},
-		{ImageName: "postgres:9.5", Options: opts},
-		{ImageName: "postgres:9.6", Options: opts},
-		{ImageName: "postgres:10", Options: opts},
-		{ImageName: "postgres:11", Options: opts},
-	}
-)
-
-func pgConnectionString(host, port string) string {
-	return fmt.Sprintf("postgres://postgres@%s:%s/postgres?sslmode=disable", host, port)
-}
-
-func isReady(ctx context.Context, c dktest.ContainerInfo) bool {
-	ip, port, err := c.FirstPort()
-	if err != nil {
-		return false
-	}
-
-	db, err := sql.Open("postgres", pgConnectionString(ip, port))
-	if err != nil {
-		return false
-	}
-	defer db.Close()
-	if err = db.PingContext(ctx); err != nil {
-		switch err {
-		case sqldriver.ErrBadConn, io.EOF:
-			return false
-		default:
-			fmt.Println(err)
-		}
-		return false
-	}
-
-	return true
-}
-
-func Test(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.FirstPort()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := pgConnectionString(ip, port)
-		p := &Postgres{}
-		d, err := p.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer d.Close()
-		dt.Test(t, d, []byte("SELECT 1"))
-	})
-}
-
-func TestMultiStatement(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.FirstPort()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := pgConnectionString(ip, port)
-		p := &Postgres{}
-		d, err := p.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer d.Close()
-		if err := d.Run(strings.NewReader("CREATE TABLE foo (foo text); CREATE TABLE bar (bar text);")); err != nil {
-			t.Fatalf("expected err to be nil, got %v", err)
-		}
-
-		// make sure second table exists
-		var exists bool
-		if err := d.(*Postgres).conn.QueryRowContext(context.Background(), "SELECT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'bar' AND table_schema = (SELECT current_schema()))").Scan(&exists); err != nil {
-			t.Fatal(err)
-		}
-		if !exists {
-			t.Fatalf("expected table bar to exist")
-		}
-	})
-}
-
-func TestErrorParsing(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.FirstPort()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := pgConnectionString(ip, port)
-		p := &Postgres{}
-		d, err := p.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer d.Close()
-
-		wantErr := `migration failed: syntax error at or near "TABLEE" (column 37) in line 1: CREATE TABLE foo ` +
-			`(foo text); CREATE TABLEE bar (bar text); (details: pq: syntax error at or near "TABLEE")`
-		if err := d.Run(strings.NewReader("CREATE TABLE foo (foo text); CREATE TABLEE bar (bar text);")); err == nil {
-			t.Fatal("expected err but got nil")
-		} else if err.Error() != wantErr {
-			t.Fatalf("expected '%s' but got '%s'", wantErr, err.Error())
-		}
-	})
-}
-
-func TestFilterCustomQuery(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.FirstPort()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := fmt.Sprintf("postgres://postgres@%v:%v/postgres?sslmode=disable&x-custom=foobar", ip, port)
-		p := &Postgres{}
-		d, err := p.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer d.Close()
-	})
-}
-
-func TestWithSchema(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.FirstPort()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := pgConnectionString(ip, port)
-		p := &Postgres{}
-		d, err := p.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer d.Close()
-
-		// create foobar schema
-		if err := d.Run(strings.NewReader("CREATE SCHEMA foobar AUTHORIZATION postgres")); err != nil {
-			t.Fatal(err)
-		}
-		if err := d.SetVersion(1, false); err != nil {
-			t.Fatal(err)
-		}
-
-		// re-connect using that schema
-		d2, err := p.Open(fmt.Sprintf("postgres://postgres@%v:%v/postgres?sslmode=disable&search_path=foobar", ip, port))
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer d2.Close()
-
-		version, _, err := d2.Version()
-		if err != nil {
-			t.Fatal(err)
-		}
-		if version != -1 {
-			t.Fatal("expected NilVersion")
-		}
-
-		// now update version and compare
-		if err := d2.SetVersion(2, false); err != nil {
-			t.Fatal(err)
-		}
-		version, _, err = d2.Version()
-		if err != nil {
-			t.Fatal(err)
-		}
-		if version != 2 {
-			t.Fatal("expected version 2")
-		}
-
-		// meanwhile, the public schema still has the other version
-		version, _, err = d.Version()
-		if err != nil {
-			t.Fatal(err)
-		}
-		if version != 1 {
-			t.Fatal("expected version 2")
-		}
-	})
-}
-
-func TestParallelSchema(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.FirstPort()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := pgConnectionString(ip, port)
-		p := &Postgres{}
-		d, err := p.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer d.Close()
-
-		// create foo and bar schemas
-		if err := d.Run(strings.NewReader("CREATE SCHEMA foo AUTHORIZATION postgres")); err != nil {
-			t.Fatal(err)
-		}
-		if err := d.Run(strings.NewReader("CREATE SCHEMA bar AUTHORIZATION postgres")); err != nil {
-			t.Fatal(err)
-		}
-
-		// re-connect using that schemas
-		dfoo, err := p.Open(fmt.Sprintf("postgres://postgres@%v:%v/postgres?sslmode=disable&search_path=foo", ip, port))
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer dfoo.Close()
-
-		dbar, err := p.Open(fmt.Sprintf("postgres://postgres@%v:%v/postgres?sslmode=disable&search_path=bar", ip, port))
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-		defer dbar.Close()
-
-		if err := dfoo.Lock(); err != nil {
-			t.Fatal(err)
-		}
-
-		if err := dbar.Lock(); err != nil {
-			t.Fatal(err)
-		}
-
-		if err := dbar.Unlock(); err != nil {
-			t.Fatal(err)
-		}
-
-		if err := dfoo.Unlock(); err != nil {
-			t.Fatal(err)
-		}
-	})
-}
-
-func TestWithInstance(t *testing.T) {
-
-}
-
-func TestPostgres_Lock(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.FirstPort()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addr := pgConnectionString(ip, port)
-		p := &Postgres{}
-		d, err := p.Open(addr)
-		if err != nil {
-			t.Fatalf("%v", err)
-		}
-
-		dt.Test(t, d, []byte("SELECT 1"))
-
-		ps := d.(*Postgres)
-
-		err = ps.Lock()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		err = ps.Unlock()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		err = ps.Lock()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		err = ps.Unlock()
-		if err != nil {
-			t.Fatal(err)
-		}
-	})
-}
-
-func TestWithInstance_Concurrent(t *testing.T) {
-	dktesting.ParallelTest(t, specs, func(t *testing.T, c dktest.ContainerInfo) {
-		ip, port, err := c.FirstPort()
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		// The number of concurrent processes running WithInstance
-		const concurrency = 30
-
-		// We can instantiate a single database handle because it is
-		// actually a connection pool, and so, each of the below go
-		// routines will have a high probability of using a separate
-		// connection, which is something we want to exercise.
-		db, err := sql.Open("postgres", pgConnectionString(ip, port))
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer db.Close()
-
-		db.SetMaxIdleConns(concurrency)
-		db.SetMaxOpenConns(concurrency)
-
-		var wg sync.WaitGroup
-		defer wg.Wait()
-
-		wg.Add(concurrency)
-		for i := 0; i < concurrency; i++ {
-			go func(i int) {
-				defer wg.Done()
-				_, err := WithInstance(db, &Config{})
-				if err != nil {
-					t.Errorf("process %d error: %s", i, err)
-				}
-			}(i)
-		}
-	})
-}
-func Test_computeLineFromPos(t *testing.T) {
-	testcases := []struct {
-		pos      int
-		wantLine uint
-		wantCol  uint
-		input    string
-		wantOk   bool
-	}{
-		{
-			15, 2, 6, "SELECT *\nFROM foo", true, // foo table does not exists
-		},
-		{
-			16, 3, 6, "SELECT *\n\nFROM foo", true, // foo table does not exists, empty line
-		},
-		{
-			25, 3, 7, "SELECT *\nFROM foo\nWHERE x", true, // x column error
-		},
-		{
-			27, 5, 7, "SELECT *\n\nFROM foo\n\nWHERE x", true, // x column error, empty lines
-		},
-		{
-			10, 2, 1, "SELECT *\nFROMM foo", true, // FROMM typo
-		},
-		{
-			11, 3, 1, "SELECT *\n\nFROMM foo", true, // FROMM typo, empty line
-		},
-		{
-			17, 2, 8, "SELECT *\nFROM foo", true, // last character
-		},
-		{
-			18, 0, 0, "SELECT *\nFROM foo", false, // invalid position
-		},
-	}
-	for i, tc := range testcases {
-		t.Run("tc"+strconv.Itoa(i), func(t *testing.T) {
-			run := func(crlf bool, nonASCII bool) {
-				var name string
-				if crlf {
-					name = "crlf"
-				} else {
-					name = "lf"
-				}
-				if nonASCII {
-					name += "-nonascii"
-				} else {
-					name += "-ascii"
-				}
-				t.Run(name, func(t *testing.T) {
-					input := tc.input
-					if crlf {
-						input = strings.Replace(input, "\n", "\r\n", -1)
-					}
-					if nonASCII {
-						input = strings.Replace(input, "FROM", "FRÖM", -1)
-					}
-					gotLine, gotCol, gotOK := computeLineFromPos(input, tc.pos)
-
-					if tc.wantOk {
-						t.Logf("pos %d, want %d:%d, %#v", tc.pos, tc.wantLine, tc.wantCol, input)
-					}
-
-					if gotOK != tc.wantOk {
-						t.Fatalf("expected ok %v but got %v", tc.wantOk, gotOK)
-					}
-					if gotLine != tc.wantLine {
-						t.Fatalf("expected line %d but got %d", tc.wantLine, gotLine)
-					}
-					if gotCol != tc.wantCol {
-						t.Fatalf("expected col %d but got %d", tc.wantCol, gotCol)
-					}
-				})
-			}
-			run(false, false)
-			run(true, false)
-			run(false, true)
-			run(true, true)
-		})
-	}
-
-}
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS pets;
@@ -1,3 +0,0 @@
-CREATE TABLE pets (
-  name string
-);
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS pets;
@@ -1 +0,0 @@
-ALTER TABLE pets ADD predator bool;;
@@ -1,212 +0,0 @@
-package ql
-
-import (
-	"database/sql"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"strings"
-
-	nurl "net/url"
-
-	_ "github.com/cznic/ql/driver"
-	"github.com/golang-migrate/migrate/v4"
-	"github.com/golang-migrate/migrate/v4/database"
-)
-
-func init() {
-	database.Register("ql", &Ql{})
-}
-
-var DefaultMigrationsTable = "schema_migrations"
-var (
-	ErrDatabaseDirty  = fmt.Errorf("database is dirty")
-	ErrNilConfig      = fmt.Errorf("no config")
-	ErrNoDatabaseName = fmt.Errorf("no database name")
-	ErrAppendPEM      = fmt.Errorf("failed to append PEM")
-)
-
-type Config struct {
-	MigrationsTable string
-	DatabaseName    string
-}
-
-type Ql struct {
-	db       *sql.DB
-	isLocked bool
-
-	config *Config
-}
-
-func WithInstance(instance *sql.DB, config *Config) (database.Driver, error) {
-	if config == nil {
-		return nil, ErrNilConfig
-	}
-
-	if err := instance.Ping(); err != nil {
-		return nil, err
-	}
-	if len(config.MigrationsTable) == 0 {
-		config.MigrationsTable = DefaultMigrationsTable
-	}
-
-	mx := &Ql{
-		db:     instance,
-		config: config,
-	}
-	if err := mx.ensureVersionTable(); err != nil {
-		return nil, err
-	}
-	return mx, nil
-}
-func (m *Ql) ensureVersionTable() error {
-	tx, err := m.db.Begin()
-	if err != nil {
-		return err
-	}
-	if _, err := tx.Exec(fmt.Sprintf(`
-	CREATE TABLE IF NOT EXISTS %s (version uint64,dirty bool);
-	CREATE UNIQUE INDEX IF NOT EXISTS version_unique ON %s (version);
-`, m.config.MigrationsTable, m.config.MigrationsTable)); err != nil {
-		if err := tx.Rollback(); err != nil {
-			return err
-		}
-		return err
-	}
-	if err := tx.Commit(); err != nil {
-		return err
-	}
-	return nil
-}
-
-func (m *Ql) Open(url string) (database.Driver, error) {
-	purl, err := nurl.Parse(url)
-	if err != nil {
-		return nil, err
-	}
-	dbfile := strings.Replace(migrate.FilterCustomQuery(purl).String(), "ql://", "", 1)
-	db, err := sql.Open("ql", dbfile)
-	if err != nil {
-		return nil, err
-	}
-	migrationsTable := purl.Query().Get("x-migrations-table")
-	if len(migrationsTable) == 0 {
-		migrationsTable = DefaultMigrationsTable
-	}
-	mx, err := WithInstance(db, &Config{
-		DatabaseName:    purl.Path,
-		MigrationsTable: migrationsTable,
-	})
-	if err != nil {
-		return nil, err
-	}
-	return mx, nil
-}
-func (m *Ql) Close() error {
-	return m.db.Close()
-}
-func (m *Ql) Drop() error {
-	query := `SELECT Name FROM __Table`
-	tables, err := m.db.Query(query)
-	if err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	defer tables.Close()
-	tableNames := make([]string, 0)
-	for tables.Next() {
-		var tableName string
-		if err := tables.Scan(&tableName); err != nil {
-			return err
-		}
-		if len(tableName) > 0 {
-			if strings.HasPrefix(tableName, "__") == false {
-				tableNames = append(tableNames, tableName)
-			}
-		}
-	}
-	if len(tableNames) > 0 {
-		for _, t := range tableNames {
-			query := "DROP TABLE " + t
-			err = m.executeQuery(query)
-			if err != nil {
-				return &database.Error{OrigErr: err, Query: []byte(query)}
-			}
-		}
-		if err := m.ensureVersionTable(); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-func (m *Ql) Lock() error {
-	if m.isLocked {
-		return database.ErrLocked
-	}
-	m.isLocked = true
-	return nil
-}
-func (m *Ql) Unlock() error {
-	if !m.isLocked {
-		return nil
-	}
-	m.isLocked = false
-	return nil
-}
-func (m *Ql) Run(migration io.Reader) error {
-	migr, err := ioutil.ReadAll(migration)
-	if err != nil {
-		return err
-	}
-	query := string(migr[:])
-
-	return m.executeQuery(query)
-}
-func (m *Ql) executeQuery(query string) error {
-	tx, err := m.db.Begin()
-	if err != nil {
-		return &database.Error{OrigErr: err, Err: "transaction start failed"}
-	}
-	if _, err := tx.Exec(query); err != nil {
-		tx.Rollback()
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-	if err := tx.Commit(); err != nil {
-		return &database.Error{OrigErr: err, Err: "transaction commit failed"}
-	}
-	return nil
-}
-func (m *Ql) SetVersion(version int, dirty bool) error {
-	tx, err := m.db.Begin()
-	if err != nil {
-		return &database.Error{OrigErr: err, Err: "transaction start failed"}
-	}
-
-	query := "TRUNCATE TABLE " + m.config.MigrationsTable
-	if _, err := tx.Exec(query); err != nil {
-		return &database.Error{OrigErr: err, Query: []byte(query)}
-	}
-
-	if version >= 0 {
-		query := fmt.Sprintf(`INSERT INTO %s (version, dirty) VALUES (%d, %t)`, m.config.MigrationsTable, version, dirty)
-		if _, err := tx.Exec(query); err != nil {
-			tx.Rollback()
-			return &database.Error{OrigErr: err, Query: []byte(query)}
-		}
-	}
-
-	if err := tx.Commit(); err != nil {
-		return &database.Error{OrigErr: err, Err: "transaction commit failed"}
-	}
-
-	return nil
-}
-
-func (m *Ql) Version() (version int, dirty bool, err error) {
-	query := "SELECT version, dirty FROM " + m.config.MigrationsTable + " LIMIT 1"
-	err = m.db.QueryRow(query).Scan(&version, &dirty)
-	if err != nil {
-		return database.NilVersion, false, nil
-	}
-	return version, dirty, nil
-}
@@ -1,62 +0,0 @@
-package ql
-
-import (
-	"database/sql"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"testing"
-
-	_ "github.com/cznic/ql/driver"
-	"github.com/golang-migrate/migrate/v4"
-	dt "github.com/golang-migrate/migrate/v4/database/testing"
-	_ "github.com/golang-migrate/migrate/v4/source/file"
-)
-
-func Test(t *testing.T) {
-	dir, err := ioutil.TempDir("", "ql-driver-test")
-	if err != nil {
-		return
-	}
-	defer func() {
-		os.RemoveAll(dir)
-	}()
-	fmt.Printf("DB path : %s\n", filepath.Join(dir, "ql.db"))
-	p := &Ql{}
-	addr := fmt.Sprintf("ql://%s", filepath.Join(dir, "ql.db"))
-	d, err := p.Open(addr)
-	if err != nil {
-		t.Fatalf("%v", err)
-	}
-
-	db, err := sql.Open("ql", filepath.Join(dir, "ql.db"))
-	if err != nil {
-		return
-	}
-	defer func() {
-		if err := db.Close(); err != nil {
-			return
-		}
-	}()
-	dt.Test(t, d, []byte("CREATE TABLE t (Qty int, Name string);"))
-	driver, err := WithInstance(db, &Config{})
-	if err != nil {
-		t.Fatalf("%v", err)
-	}
-	if err := d.Drop(); err != nil {
-		t.Fatal(err)
-	}
-
-	m, err := migrate.NewWithDatabaseInstance(
-		"file://./migration",
-		"ql", driver)
-	if err != nil {
-		t.Fatalf("%v", err)
-	}
-	fmt.Println("UP")
-	err = m.Up()
-	if err != nil {
-		t.Fatalf("%v", err)
-	}
-}
@@ -1,21 +0,0 @@
-# Redshift
-
-`redshift://user:password@host:port/dbname?query`
-
-| URL Query  | WithInstance Config | Description |
-|------------|---------------------|-------------|
-| `x-migrations-table` | `MigrationsTable` | Name of the migrations table |
-| `dbname` | `DatabaseName` | The name of the database to connect to |
-| `search_path` | | This variable specifies the order in which schemas are searched when an object is referenced by a simple name with no schema specified. |
-| `user` | | The user to sign in as |
-| `password` | | The user's password | 
-| `host` | | The host to connect to. Values that start with / are for unix domain sockets. (default is localhost) |
-| `port` | | The port to bind to. (default is 5439) |
-| `fallback_application_name` | | An application_name to fall back to if one isn't provided. |
-| `connect_timeout` | | Maximum wait for connection, in seconds. Zero or not specified means wait indefinitely. |
-| `sslcert` | | Cert file location. The file must contain PEM encoded data. |
-| `sslkey` | | Key file location. The file must contain PEM encoded data. |
-| `sslrootcert` | | The location of the root certificate file. The file must contain PEM encoded data. | 
-| `sslmode` | | Whether or not to use SSL (disable\|require\|verify-ca\|verify-full) |
-
-Redshift is PostgreSQL compatible but has some specific features (or lack thereof) that require slightly different behavior.
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS users;
@@ -1,5 +0,0 @@
-CREATE TABLE users (
-  user_id integer unique,
-  name    varchar(40),
-  email   varchar(40)
-);
@@ -1 +0,0 @@
-ALTER TABLE users DROP COLUMN IF EXISTS city;
@@ -1,3 +0,0 @@
-ALTER TABLE users ADD COLUMN city varchar(100);
-
-
@@ -1 +0,0 @@
-DROP INDEX IF EXISTS users_email_index;
@@ -1,3 +0,0 @@
-CREATE UNIQUE INDEX CONCURRENTLY users_email_index ON users (email);
-
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS books;
@@ -1,5 +0,0 @@
-CREATE TABLE books (
-  user_id integer,
-  name    varchar(40),
-  author  varchar(40)
-);
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS movies;
@@ -1,5 +0,0 @@
-CREATE TABLE movies (
-  user_id   integer,
-  name      varchar(40),
-  director  varchar(40)
-);
@@ -1 +0,0 @@
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1 +0,0 @@
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
@@ -1 +0,0 @@
-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Matthias KadenbachandGitHub	dfe3ec0fce	Merge pull request #198 from rmulley/travis-go-1.8 TravisCI Updates	2017-07-09 11:00:29 -07:00
Matthias KadenbachandGitHub	01b25ee18b	Merge branch 'v1' into travis-go-1.8	2017-07-09 10:59:35 -07:00
Matthias KadenbachandGitHub	afc973c4e5	Merge pull request #216 from thingful/v1.3.1-neo4j-https Register neo4j driver using a pseudo `neo4js` protocol scheme.	2017-05-09 10:37:06 -07:00
Sam Mulube	250543a561	Register neo4j driver using a pseudo `neo4js` protocol scheme. Neo4J supports both `http` and `https` connections, however `https` connections weren't supported previously as the `neo4j` URL scheme currently used to identify the driver type is always substituted for just `http`. This PR also registers the driver under an alternate key: `neo4js` which given the way the scheme substitution happens, should allow the driver to correctly create an `https` connection URL. This will allow the library to be used for cases where we don't have access to the plain `http` endpoint.	2017-05-09 09:54:37 +01:00
Matthias KadenbachandGitHub	1dffba9fa5	Merge pull request #212 from mattes/v1-gopkg v1: github.com/mattes/migrate -> gopkg.in/mattes/migrate.v1	2017-05-06 16:25:42 -07:00
Matthias Kadenbach	964e6bc070	rewrite in readmes	2017-05-06 16:18:32 -07:00
Matthias Kadenbach	1887c0f3e3	rewrite paths	2017-05-06 16:13:08 -07:00
Matthias Kadenbach	62dba4f8ea	update travis branch	2017-04-25 12:02:57 -07:00
Matthias KadenbachandGitHub	78ca4eb007	Merge pull request #190 from alaczi/mssql_support MSSQL support	2017-04-25 11:35:40 -07:00
Andras Laczi	d21443f74b	Remove go1.4 from travis as the ql package is not compatible and breaks the build	2017-04-25 09:35:03 +01:00
Andras Laczi	7f4000c0d6	Add wait-retry to mssql test	2017-04-24 13:15:17 +01:00
Andras Laczi	ecd74e1ce6	Add go 1.8 to travis config Fix getting the latest version	2017-04-24 13:15:12 +01:00
Matthias Kadenbach	9f14676773	Update Readme	2017-04-20 15:04:54 -07:00
Matthias KadenbachandGitHub	7dde434714	Update version.go	2017-04-20 11:50:49 -07:00
Robert Mulley	fff063351d	Pull latest patch versions for each go minor version	2017-04-13 13:01:59 -06:00
Robert Mulley	5498e70562	Bump docker-compose to latest, 1.11.2	2017-04-13 12:54:35 -06:00
Robert Mulley	0da98940d6	Add go 1.8 to test matrix	2017-04-13 12:44:27 -06:00
Matthias KadenbachandGitHub	4cfc044489	Merge pull request #193 from Arkq/master Support for alternative postgres URI scheme	2017-04-03 10:33:35 -07:00
Arkadiusz Bokowy	83c703f09f	Support for alternative postgres URI scheme According to the PostgreSQL documentation (section 32.1.1.2), postgres library supports two URI schemes: postgresql:// and postgres:// Reference: https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING	2017-04-03 09:15:25 +02:00
Andras Laczi	b7845a779e	Add MSSQL support	2017-03-30 15:32:14 +01:00
Matthias KadenbachandGitHub	09640b136e	Merge pull request #189 from nathj07/issue-188-sqlite-err-cast fixing error cast for sqlite3	2017-03-29 11:48:54 -07:00
Nathan Davies	7ca71e567d	fixing error cast for sqlite3 Seems the sqlite3 packaged reverted to using non-pointer Error. This patch corrects the use of it here.	2017-03-29 14:06:38 +01:00
Matthias KadenbachandGitHub	c7653285b2	Merge pull request #185 from adrianduke/master driver/sqlite3: Fix for upstream changes	2017-03-20 10:09:33 -07:00
Adrian Duke	f4979054e2	driver/sqlite3 fix for upstream change sqlite3.Error{} Error() now takes a pointer receiver	2017-03-20 16:07:01 +00:00
Matthias KadenbachandGitHub	305a63a447	Merge pull request #181 from chrisaxiom/master Call Close() in Version()	2017-03-02 13:39:55 -08:00
Chris S	528bc5bbbb	close driver	2017-03-02 12:48:31 -08:00
Matthias KadenbachandGitHub	83e27c8b88	Merge pull request #176 from Synesis-LLC/stage Golint. Rewrite cassandra driver	2017-02-27 10:12:48 -08:00
Pavel Sapezhko	e8bfb1b2b3	Merge remote-tracking branch 'upstream/master' into stage	2017-02-27 17:56:15 +03:00
Matthias KadenbachandGitHub	2cd9bfcd04	Merge pull request #173 from sekimura/govet Fix for go vet	2017-02-21 10:35:02 -08:00
Pavel Sapezhko	21ccec2aa1	allow create migration files without db connection	2017-02-21 09:13:59 +03:00
Masa Sekimura	fe6711645a	Fix for go vet Avoid getting caught by go vet for using "\n" with Println main.go:187: Println call ends with newline	2017-02-20 23:39:51 +00:00
Pavel Sapezhko	adf1cff659	drivers: cassandra: rewrite	2017-02-17 17:59:38 +03:00
Pavel Sapezhko	da12e27062	fix some lint errors	2017-02-17 13:06:26 +03:00
Matthias KadenbachandGitHub	d2ad6f8ecf	Update README.md	2017-02-10 02:42:46 -08:00
Matthias KadenbachandGitHub	bbb58aca8d	Merge pull request #146 from FreGalle/postgres-version-table-check-schema Postgres: version table existence check in current schema	2017-02-04 10:17:41 -08:00
Frederik Galle	5aed294d25	Check version table existence for current schema	2017-02-03 12:47:24 +01:00
				`@@ -1 +0,0 @@`
				`ALTER TABLE users DROP COLUMN IF EXISTS city;`
				`@@ -1 +0,0 @@`
				`-- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean sed interdum velit, tristique iaculis justo. Pellentesque ut porttitor dolor. Donec sit amet pharetra elit. Cras vel ligula ex. Phasellus posuere.`
				`@@ -1,3 +0,0 @@`
				`ALTER TABLE users ADD COLUMN city varchar(100);`