changed _create_table to return true if table already exists
diff --git a/system/database/drivers/postgre/postgre_forge.php b/system/database/drivers/postgre/postgre_forge.php
index ddbce60..df0338e 100644
--- a/system/database/drivers/postgre/postgre_forge.php
+++ b/system/database/drivers/postgre/postgre_forge.php
@@ -81,9 +81,10 @@
 
 		if ($if_not_exists === TRUE)
 		{
+			// PostgreSQL doesn't support IF NOT EXISTS syntax so we check if table exists manually
 			if ($this->db->table_exists($table))
 			{
-				return "SELECT 1"; // Needs to return innocous but valid SQL statement
+				return TRUE;
 			}
 		}