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Fixed #13882 -- Removed an unnecessary nested where clause introduced on __isnull queries. Thanks to Alex Gaynor for the report and patch. 

git-svn-id: http://code.djangoproject.com/svn/django/trunk@13456 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee 2010-07-30 04:06:27 +00:00
parent de81c5513c
commit c4e766c100
1 changed files with 1 additions and 4 deletions
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5
django/db/models/sql/query.py
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@ -1090,10 +1090,7 @@ class Query(object):
# exclude the "foo__in=[]" case from this handling, because # exclude the "foo__in=[]" case from this handling, because
# it's short-circuited in the Where class. # it's short-circuited in the Where class.
# We also need to handle the case where a subquery is provided # We also need to handle the case where a subquery is provided
entry = self.where_class() self.where.add((Constraint(alias, col, None), 'isnull', False), AND)
entry.add((Constraint(alias, col, None), 'isnull', True), AND)
entry.negate()
self.where.add(entry, AND)
if can_reuse is not None: if can_reuse is not None:
can_reuse.update(join_list) can_reuse.update(join_list)