Fix "Rspec-mysql 1 20 - Build Failed #21539350"

What does this MR do?

Fix "Rspec-mysql 1 20 - Build Failed #21539350", which is caused by https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/12582.

I realized this failure in https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/2373 and fixed. This MR is for backport the fix.

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/34847

changed the description

@ayufan Could you review & merge this? This MR will fix the failure which happens with mysql(pg is fine). I acknowledged this problem at https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/2373 and already fixed it.

Closing in favor of https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/12722

closed