diff options
Diffstat (limited to 'django/db/models')
| -rw-r--r-- | django/db/models/lookups.py | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/django/db/models/lookups.py b/django/db/models/lookups.py index c55208598c..5089737034 100644 --- a/django/db/models/lookups.py +++ b/django/db/models/lookups.py @@ -3,7 +3,7 @@ import math from copy import copy from django.core.exceptions import EmptyResultSet -from django.db.models.expressions import Case, Exists, Func, Value, When +from django.db.models.expressions import Case, Func, Value, When from django.db.models.fields import ( CharField, DateTimeField, Field, IntegerField, UUIDField, ) @@ -124,12 +124,12 @@ class Lookup: raise NotImplementedError def as_oracle(self, compiler, connection): - # Oracle doesn't allow EXISTS() to be compared to another expression - # unless it's wrapped in a CASE WHEN. + # Oracle doesn't allow EXISTS() and filters to be compared to another + # expression unless they're wrapped in a CASE WHEN. wrapped = False exprs = [] for expr in (self.lhs, self.rhs): - if isinstance(expr, Exists): + if connection.ops.conditional_expression_supported_in_where_clause(expr): expr = Case(When(expr, then=True), default=False) wrapped = True exprs.append(expr) |