Version 4.7.23

system/Db/Select.php

@@ -10,6 +10,8 @@
 
 namespace IPS\Db;
 
+use function preg_replace;
+
 /* To prevent PHP errors (extending class does not exist) revealing path */
 if ( !\defined( '\IPS\SUITE_UNIQUE_KEY' ) )
 {
@@ -100,7 +102,24 @@ class _Select implements \Iterator, \Countable
 	{
 		return \IPS\Db::_replaceBinds( $this->query, array_merge( $this->joinBinds, $this->binds ) );
 	}
-	
+
+	/**
+	 * Set a max execution time for this query
+	 *
+	 * @param	int		$milliseconds		Number of milliseconds to set as the max execution time
+	 * @return	\IPS\Db\Select
+	 */
+	public function setExecutionTime( int $milliseconds )
+	{
+		/* This feature was introduced in MySQL 5.7.4 @note https://dev.mysql.com/doc/refman/8.4/en/optimizer-hints.html#optimizer-hints-execution-time */
+		if ( ! mb_stristr( \IPS\Db::i()->server_info, '-MariaDB' ) and \IPS\Db::i()->server_version >= 50704 )
+		{
+			$this->query = preg_replace( '/(^SELECT\s+)([a-z]|\*)/', "$1 /*+ MAX_EXECUTION_TIME({$milliseconds}) */ $2", $this->query, 1 );
+		}
+
+		return $this;
+	}
+
 	/**
 	 * Force an index
 	 *