Merge branch 'dz-migration-index-helper' into 'master'

Add mysql_compatible_index_length to migration helpers

Closes #50253

See merge request gitlab-org/gitlab-ce!21852

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/gitlab/database/migration_helpers.rb b/lib/gitlab/database/migration_helpers.rb
index 7f012312819..30541ee3553 100644
--- a/lib/gitlab/database/migration_helpers.rb
+++ b/lib/gitlab/database/migration_helpers.rb
@@ -1073,6 +1073,10 @@ into similar problems in the future (e.g. when new tables are created).
 
         connection.select_value(index_sql).to_i > 0
       end
+
+      def mysql_compatible_index_length
+        Gitlab::Database.mysql? ? 20 : nil
+      end
     end
   end
 end