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| author | Alex Gaynor <alex.gaynor@gmail.com> | 2010-06-21 16:11:17 +0000 |
|---|---|---|
| committer | Alex Gaynor <alex.gaynor@gmail.com> | 2010-06-21 16:11:17 +0000 |
| commit | 706b18966f7f6dcef715ca7b5230e72147cefda6 (patch) | |
| tree | b71751270c449ab0dcfe9123c7eb91e4a770a373 /django/db/models/sql/query.py | |
| parent | dd5e71829627705d68905d91fc18c3554a9c69c8 (diff) | |
[soc2010/query-refactor] Cleaned up implementation of negation in MongoDB, and no longer rely on a feature from MongoDB unstable version.
git-svn-id: http://code.djangoproject.com/svn/django/branches/soc2010/query-refactor@13368 bcc190cf-cafb-0310-a4f2-bffc1f526a37
Diffstat (limited to 'django/db/models/sql/query.py')
| -rw-r--r-- | django/db/models/sql/query.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/django/db/models/sql/query.py b/django/db/models/sql/query.py index 959990f628..6836337429 100644 --- a/django/db/models/sql/query.py +++ b/django/db/models/sql/query.py @@ -1077,7 +1077,11 @@ class Query(object): # it's short-circuited in the Where class. # We also need to handle the case where a subquery is provided entry = self.where_class() - entry.add((Constraint(alias, col, None), 'isnull', True), AND) + entry.add(( + Constraint(alias, col, None, eliminatable_if=lambda connection: not getattr(connection.features, "sql_nulls", True)), + 'isnull', + True + ), AND) entry.negate() self.where.add(entry, AND) |