diff options
Diffstat (limited to 'django/db')
| -rw-r--r-- | django/db/backends/base/features.py | 4 | ||||
| -rw-r--r-- | django/db/models/lookups.py | 8 |
2 files changed, 8 insertions, 4 deletions
diff --git a/django/db/backends/base/features.py b/django/db/backends/base/features.py index e8fa82aa21..22c05f28e9 100644 --- a/django/db/backends/base/features.py +++ b/django/db/backends/base/features.py @@ -424,6 +424,10 @@ class BaseDatabaseFeatures: # injection? prohibits_dollar_signs_in_column_aliases = False + # Should PatternLookup.process_rhs() use self.param_pattern? It's unneeded + # on databases that don't use LIKE for pattern matching. + pattern_lookup_needs_param_pattern = True + # A set of dotted paths to tests in Django's test suite that are expected # to fail on this database. django_test_expected_failures = set() diff --git a/django/db/models/lookups.py b/django/db/models/lookups.py index 3489fe1e40..eaf3d69a59 100644 --- a/django/db/models/lookups.py +++ b/django/db/models/lookups.py @@ -598,10 +598,10 @@ class PatternLookup(BuiltinLookup): def process_rhs(self, qn, connection): rhs, params = super().process_rhs(qn, connection) if self.rhs_is_direct_value() and params and not self.bilateral_transforms: - params = ( - self.param_pattern % connection.ops.prep_for_like_query(params[0]), - *params[1:], - ) + param = connection.ops.prep_for_like_query(params[0]) + if connection.features.pattern_lookup_needs_param_pattern: + param = self.param_pattern % param + params = (param, *params[1:]) return rhs, params |