I hope nothing broke!

- Added a query builder, it is currently only used for complex queries that involve a FROM clause with two tables and a left join
- Changed some function calls in the DBAL
- Made the viewtopic queries nicer


git-svn-id: file:///svn/phpbb/trunk@5885 89ea8834-ac86-4346-8a33-228a782c2dd0

phpBB/includes/db/mssql.php

@@ -98,7 +98,6 @@ class dbal_mssql extends dbal
 		{
 			global $cache;
 
-			$query = preg_replace('#FROM \(([^)]*)\)(,|[\n\r\t ]+(?:WHERE|LEFT JOIN)) #', 'FROM \1\2 ', $query);
 
 			// EXPLAIN only in extra debug mode
 			if (defined('DEBUG_EXTRA'))
@@ -333,6 +332,15 @@ class dbal_mssql extends dbal
 		return $error;
 	}
 
+	/**
+	* Build db-specific query data
+	* @private
+	*/
+	function _sql_custom_build($stage, $data)
+	{
+		return $data;
+	}
+
 	/**
 	* Close sql connection
 	* @private