Add mysql_compatible_index_length to migration helpersdz-migration-index-helper

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

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