diff --git a/trytond/backend/postgresql/database.py b/trytond/backend/postgresql/database.py
index 761a05564e..b6537c5734 100644
--- a/trytond/backend/postgresql/database.py
+++ b/trytond/backend/postgresql/database.py
@@ -26,8 +26,6 @@ from sql import Flavor
 __all__ = ['Database', 'DatabaseIntegrityError', 'DatabaseOperationalError',
     'Cursor']
 
-RE_FROM = re.compile('.* from "?([a-zA-Z_0-9]+)"?.*$')
-RE_INTO = re.compile('.* into "?([a-zA-Z_0-9]+)"?.*$')
 RE_VERSION = re.compile(r'\S+ (\d+)\.(\d+)')
 
 os.environ['PGTZ'] = os.environ.get('TZ', '')