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authorRamiro Morales <cramm0@gmail.com>2010-10-13 23:36:16 +0000
committerRamiro Morales <cramm0@gmail.com>2010-10-13 23:36:16 +0000
commit08d14925c9e321d7ff4e0f6c1983a74606aa1941 (patch)
treebd5e68ee862d063493fb08b74d2d3d408f08921d /django/db/models/sql
parent5f5a61e7804beab76b92178e48cd74cae007a8ec (diff)
Fixed #12192 -- Don't execute any DB query when the QS slicing being performed
will result in use of LIMIT 0. Thanks Suor for the report. git-svn-id: http://code.djangoproject.com/svn/django/trunk@14204 bcc190cf-cafb-0310-a4f2-bffc1f526a37
Diffstat (limited to 'django/db/models/sql')
-rw-r--r--django/db/models/sql/compiler.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/django/db/models/sql/compiler.py b/django/db/models/sql/compiler.py
index eaf2cd2569..a11d556b38 100644
--- a/django/db/models/sql/compiler.py
+++ b/django/db/models/sql/compiler.py
@@ -52,6 +52,9 @@ class SQLCompiler(object):
If 'with_limits' is False, any limit/offset information is not included
in the query.
"""
+ if with_limits and self.query.low_mark == self.query.high_mark:
+ return '', ()
+
self.pre_sql_setup()
out_cols = self.get_columns(with_col_aliases)
ordering, ordering_group_by = self.get_ordering()