diff --git a/doc/development/migration_style_guide.md b/doc/development/migration_style_guide.md index bb40c0d32b4bb9238c2c6c85047209de548ee762..0c326eeb851eac9aef34c34cbdcbed89104bf783 100644 --- a/doc/development/migration_style_guide.md +++ b/doc/development/migration_style_guide.md @@ -423,3 +423,9 @@ _namespaces_ that have a `project_id`. The `path` column for these rows will be renamed to their previous value followed by an integer. For example: `users` would turn into `users0` + +### Moving migrations from EE to CE + +When migrations need to be moved from GitLab Enterprise Edition to GitLab Community Edition, +a migration file should be moved from `ee/db/{post_,}migrate` directory in the `gitlab-ee` project to `db/{post_,}migrate` directory in the `gitlab-ce` project. This way +the schema number remains intact, there is no need to modify old migrations, and proper columns, tables or data are added in the Community Edition.