Ticket #3575: django_db.diff

django/db/models/query.py

@@ -636 +636 @@
-    if table_prefix.endswith('.'):
-        table_prefix = backend.quote_name(table_prefix[:-1])+'.'
-    field_name = backend.quote_name(field_name)
+    # Grab mapping for table and column name to do formatting
+    column_map = '%s%s' % (table_prefix, field_name)
+    if hasattr(backend, 'COLUMN_MAPPING') and backend.COLUMN_MAPPING.has_key(lookup_type):
+        column_map = backend.COLUMN_MAPPING[lookup_type] % column_map
-    try:
-%s %s' % (table_prefix, field_name
+ %s' % (column_map
-    except KeyError:
-        pass
-    if lookup_type == 'in':

django/db/backends/postgresql_psycopg2/base.py

@@ -120 +120 @@
-def get_pk_default_value():
-    return "DEFAULT"
-
+# Create a map for to do column functions
+COLUMN_MAPPING = {
+    'iexact': 'LOWER(%s)',
+    }
+
-OPERATOR_MAPPING = {
-    'exact': '= %s',
-ILIKE %s
+= LOWER(%s)
-    'contains': 'LIKE %s',
-    'icontains': 'ILIKE %s',
-    'gt': '> %s',