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/postgres.php

@@ -127,10 +127,6 @@ class dbal_postgres extends dbal
 		{
 			global $cache;
 
-			if (strpos($query, 'SELECT') === 0 && strpos($query, 'FROM (') !== false)
-			{
-				$query = preg_replace('#FROM \(([^)]+)\)\s#', 'FROM \1 ', $query);
-			}
 
 			// EXPLAIN only in extra debug mode
 			if (defined('DEBUG_EXTRA'))
@@ -145,7 +141,7 @@ class dbal_postgres extends dbal
 			{
 				$this->num_queries++;
 
-				if (($this->query_result = @pg_exec($this->db_connect_id, $query)) === false)
+				if (($this->query_result = @pg_query($this->db_connect_id, $query)) === false)
 				{
 					$this->sql_error($query);
 				}
@@ -178,6 +174,15 @@ class dbal_postgres extends dbal
 		return ($this->query_result) ? $this->query_result : false;
 	}
 
+	/**
+	* Build db-specific query data
+	* @private
+	*/
+	function _sql_custom_build($stage, $data)
+	{
+		return $data;
+	}
+
 	/**
 	* Build LIMIT query
 	*/