querySingle method

@override Future querySingle(String query, [ dynamic args ])

Executes a query, returning a single (possibly null) result.

The query must return no more than one element. If the query returns more than one element, a ResultCardinalityMismatchError error is thrown.

For details on result types and args see the edgedb library docs page.

Implementation

@override
Future<dynamic> querySingle(String query, [dynamic args]) async {
  final holder = await _pool.acquireHolder(_options);
  try {
    return await holder.querySingle(query, args);
  } finally {
    await holder.release();
  }
}