In https://we.phorge.it/source/phorge/browse/master/src/infrastructure/storage/connection/mysql/AphrontMySQLDatabaseConnection.php, executeParallelQueries() calls the non-existing method fb_parallel_query().
This was originally introduced in https://secure.phabricator.com/rPHU17f4c313e34d583b9174499e1f65714684c192c2 :
Introduce QueryFuture Summary: This supports four ways for executing queries against MySQL: # [[ http://php.net/mysqli.poll | Async queries ]] # [[ https://github.com/facebook/hiphop-php/blob/363d1bb20fe84b4cdc2dc0f4c7b1dd39d167a1f5/hphp/idl/fb.idl.php#L911 | Parallel queries ]] # Multi queries: [[ http://php.net/mysqli.multi_query | PHP ]], [[ https://github.com/facebook/hiphop-php/blob/363d1bb20fe84b4cdc2dc0f4c7b1dd39d167a1f5/hphp/idl/mysql.idl.php#L757 | HPHP ]] # Plain old single queries
including
+ public function supportsParallelQueries() {
+ return function_exists('fb_parallel_query');
+ }changed in followup commit https://secure.phabricator.com/lrPHU93fa62a55d545593bbc17e5bad6b9356d89d7299 to
public function supportsParallelQueries() {
- return function_exists('fb_parallel_query');
+ // fb_parallel_query() doesn't support results with different columns.
+ return false;
}Only place calling supportsParallelQueries() and/or executeParallelQueries() is src/infrastructure/storage/future/QueryFuture.php:
if ($this->conn->supportsParallelQueries()) {
[...]
$results = $this->conn->executeParallelQueries($queries, $conns);
[...]Thus this code is never reached.
Furthermore, HHVM is incompatible with PHP 7, cf T15047: Officially raise minimum required PHP version to 7.2.