1 files changed, 16 insertions, 0 deletions
diff --git a/db/post_migrate/20230425521418_drop_merge_request_mentions_temp_index.rb b/db/post_migrate/20230425521418_drop_merge_request_mentions_temp_index.rb
new file mode 100644
index 00000000000..a13c994d954
--- /dev/null
+++ b/db/post_migrate/20230425521418_drop_merge_request_mentions_temp_index.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+class DropMergeRequestMentionsTempIndex < Gitlab::Database::Migration[2.1]
+  INDEX_NAME = 'merge_request_mentions_temp_index'
+  INDEX_CONDITION = "description like '%@%' OR title like '%@%'"
+
+  disable_ddl_transaction!
+
+  def up
+    remove_concurrent_index(:merge_requests, :id, where: INDEX_CONDITION, name: INDEX_NAME)
+  end
+
+  def down
+    add_concurrent_index(:merge_requests, :id, where: INDEX_CONDITION, name: INDEX_NAME)
+  end
+end