Refs #33482 -- Fixed QuerySet selecting and filtering againts Exists() with empty queryset.

Thanks Tobias Bengfort for the report.

1 files changed, 9 insertions, 0 deletions

diff --git a/django/db/models/expressions.py b/django/db/models/expressions.py
index 30d44650ec..181a04493f 100644
--- a/django/db/models/expressions.py
+++ b/django/db/models/expressions.py
@@ -1624,6 +1624,15 @@ class Exists(Subquery):
             sql = "CASE WHEN {} THEN 1 ELSE 0 END".format(sql)
         return sql, params
 
+    def as_sql(self, compiler, *args, **kwargs):
+        try:
+            return super().as_sql(compiler, *args, **kwargs)
+        except EmptyResultSet:
+            features = compiler.connection.features
+            if not features.supports_boolean_expr_in_select_clause:
+                return "1=0", ()
+            return compiler.compile(Value(False))
+
 
 @deconstructible(path="django.db.models.OrderBy")
 class OrderBy(Expression):