1 files changed, 16 insertions, 0 deletions
diff --git a/db/post_migrate/20230202032302_backfill_issue_user_mentions_note_id_for_bigint_conversion.rb b/db/post_migrate/20230202032302_backfill_issue_user_mentions_note_id_for_bigint_conversion.rb
new file mode 100644
index 00000000000..749a2f97d7c
--- /dev/null
+++ b/db/post_migrate/20230202032302_backfill_issue_user_mentions_note_id_for_bigint_conversion.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+class BackfillIssueUserMentionsNoteIdForBigintConversion < Gitlab::Database::Migration[2.1]
+  TABLE = :issue_user_mentions
+  COLUMNS = %i[note_id]
+
+  restrict_gitlab_migration gitlab_schema: :gitlab_main
+
+  def up
+    backfill_conversion_of_integer_to_bigint(TABLE, COLUMNS, batch_size: 40_000, sub_batch_size: 500)
+  end
+
+  def down
+    revert_backfill_conversion_of_integer_to_bigint(TABLE, COLUMNS)
+  end
+end