1 files changed, 17 insertions, 0 deletions
diff --git a/db/post_migrate/20220111101421_remove_index_on_merge_request_id.rb b/db/post_migrate/20220111101421_remove_index_on_merge_request_id.rb
new file mode 100644
index 00000000000..38cc259312d
--- /dev/null
+++ b/db/post_migrate/20220111101421_remove_index_on_merge_request_id.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class RemoveIndexOnMergeRequestId < Gitlab::Database::Migration[1.0]
+  TABLE = :merge_request_context_commits
+  INDEX_NAME = 'index_merge_request_context_commits_on_merge_request_id'
+  COLUMN = :merge_request_id
+
+  disable_ddl_transaction!
+
+  def up
+    remove_concurrent_index TABLE, COLUMN, name: INDEX_NAME
+  end
+
+  def down
+    add_concurrent_index TABLE, COLUMN, name: INDEX_NAME
+  end
+end