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Diffstat (limited to 'doc/development/database/not_null_constraints.md')
| -rw-r--r-- | doc/development/database/not_null_constraints.md | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/doc/development/database/not_null_constraints.md b/doc/development/database/not_null_constraints.md index 9b3d017b09f..cd2adc3ca28 100644 --- a/doc/development/database/not_null_constraints.md +++ b/doc/development/database/not_null_constraints.md @@ -53,8 +53,13 @@ end ## Add a `NOT NULL` constraint to an existing column -Adding `NOT NULL` to existing database columns requires multiple steps split into at least two -different releases: +Adding `NOT NULL` to existing database columns usually requires multiple steps split into at least two +different releases. If your table is small enough that you don't need to +use a background migration, you can include all these in the same merge +request. We recommend to use separate migrations to reduce +transaction durations. + +The steps required are: 1. Release `N.M` (current release) |