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Diffstat (limited to 'django/db/models/sql/query.py')
| -rw-r--r-- | django/db/models/sql/query.py | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/django/db/models/sql/query.py b/django/db/models/sql/query.py index 181d4419fa..1258eb61a9 100644 --- a/django/db/models/sql/query.py +++ b/django/db/models/sql/query.py @@ -1192,8 +1192,11 @@ class Query(BaseExpression): # stage because join promotion can't be done in the compiler. Using # DEFAULT_DB_ALIAS isn't nice but it's the best that can be done here. # A similar thing is done in is_nullable(), too. - if (connections[DEFAULT_DB_ALIAS].features.interprets_empty_strings_as_nulls and - lookup_name == 'exact' and lookup.rhs == ''): + if ( + lookup_name == 'exact' and + lookup.rhs == '' and + connections[DEFAULT_DB_ALIAS].features.interprets_empty_strings_as_nulls + ): return lhs.get_lookup('isnull')(lhs, True) return lookup |