1 files changed, 18 insertions, 0 deletions
diff --git a/db/post_migrate/20220905090300_add_tmp_index_merge_request_reviewers_attention_request_state.rb b/db/post_migrate/20220905090300_add_tmp_index_merge_request_reviewers_attention_request_state.rb
new file mode 100644
index 00000000000..e192f76484c
--- /dev/null
+++ b/db/post_migrate/20220905090300_add_tmp_index_merge_request_reviewers_attention_request_state.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class AddTmpIndexMergeRequestReviewersAttentionRequestState < Gitlab::Database::Migration[2.0]
+  INDEX_NAME = "tmp_index_merge_request_reviewers_on_attention_requested_state"
+  ATTENTION_REQUESTED_STATE = 2
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :merge_request_reviewers, [:id],
+      where: "state = #{ATTENTION_REQUESTED_STATE}",
+      name: INDEX_NAME
+  end
+
+  def down
+    remove_concurrent_index_by_name :merge_request_reviewers, INDEX_NAME
+  end
+end