1 files changed, 15 insertions, 0 deletions
diff --git a/db/migrate/20220902165931_index_evironments_on_merge_request_id.rb b/db/migrate/20220902165931_index_evironments_on_merge_request_id.rb
new file mode 100644
index 00000000000..9d9f84e94ee
--- /dev/null
+++ b/db/migrate/20220902165931_index_evironments_on_merge_request_id.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class IndexEvironmentsOnMergeRequestId < Gitlab::Database::Migration[2.0]
+  INDEX_NAME = 'index_environments_on_merge_request_id'
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :environments, :merge_request_id, name: INDEX_NAME
+  end
+
+  def down
+    remove_concurrent_index_by_name :environments, INDEX_NAME
+  end
+end