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-rw-r--r--django/db/models/sql/constants.py11
1 files changed, 7 insertions, 4 deletions
diff --git a/django/db/models/sql/constants.py b/django/db/models/sql/constants.py
index b9cf2c96fd..f750310624 100644
--- a/django/db/models/sql/constants.py
+++ b/django/db/models/sql/constants.py
@@ -1,7 +1,13 @@
+"""
+Constants specific to the SQL storage portion of the ORM.
+"""
+
from collections import namedtuple
import re
-# Valid query types (a set is used for speedy lookups).
+# Valid query types (a set is used for speedy lookups). These are (currently)
+# considered SQL-specific; other storage systems may choose to use different
+# lookup types.
QUERY_TERMS = set([
'exact', 'iexact', 'contains', 'icontains', 'gt', 'gte', 'lt', 'lte', 'in',
'startswith', 'istartswith', 'endswith', 'iendswith', 'range', 'year',
@@ -12,9 +18,6 @@ QUERY_TERMS = set([
# Larger values are slightly faster at the expense of more storage space.
GET_ITERATOR_CHUNK_SIZE = 100
-# Separator used to split filter strings apart.
-LOOKUP_SEP = '__'
-
# Constants to make looking up tuple values clearer.
# Join lists (indexes into the tuples that are values in the alias_map
# dictionary in the Query class).