1 files changed, 17 insertions, 0 deletions
diff --git a/db/migrate/20230328020316_delete_unused_index_on_merge_requests_on_state_id_and_merge_status.rb b/db/migrate/20230328020316_delete_unused_index_on_merge_requests_on_state_id_and_merge_status.rb
new file mode 100644
index 00000000000..eac1d4e30c1
--- /dev/null
+++ b/db/migrate/20230328020316_delete_unused_index_on_merge_requests_on_state_id_and_merge_status.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class DeleteUnusedIndexOnMergeRequestsOnStateIdAndMergeStatus < Gitlab::Database::Migration[2.1]
+  # TODO: Index to be destroyed synchronously in https://gitlab.com/gitlab-org/gitlab/-/issues/402491
+
+  def up
+    prepare_async_index_removal :merge_requests, [:state_id, :merge_status],
+      where: "((state_id = 1) AND ((merge_status)::text = 'can_be_merged'::text))",
+      name: 'idx_merge_requests_on_state_id_and_merge_status'
+  end
+
+  def down
+    unprepare_async_index :merge_requests, [:state_id, :merge_status],
+      where: "((state_id = 1) AND ((merge_status)::text = 'can_be_merged'::text))",
+      name: 'idx_merge_requests_on_state_id_and_merge_status'
+  end
+end