public function executeBatchShards(Context $ctx, array $bound_shard_queries, $tablet_type, $as_transaction)
{
$request = new Proto\Vtgate\ExecuteBatchShardsRequest();
ProtoUtils::addQueries($request, $bound_shard_queries);
$request->setTabletType($tablet_type);
$request->setAsTransaction($as_transaction);
if ($ctx->getCallerId()) {
$request->setCallerId($ctx->getCallerId());
}
$response = $this->client->executeBatchShards($ctx, $request);
ProtoUtils::checkError($response);
$results = array();
foreach ($response->getResultsList() as $result) {
$results[] = new Cursor($result);
}
return $results;
}