[5.2.x] Refs #36181 -- Removed the obsolete SubqueryConstraint machinery.

Adding proper support for subquery right-hand-sides to TupleIn made it
obsolete.

Backport of d386405e04dac50656af50d100a14efdf8c58e8f from main

Co-authored-by: Simon Charette <charette.s@gmail.com>

1 files changed, 0 insertions, 20 deletions

diff --git a/django/db/models/sql/where.py b/django/db/models/sql/where.py
index 0fded5cce3..82f96aa6ec 100644
--- a/django/db/models/sql/where.py
+++ b/django/db/models/sql/where.py
@@ -343,23 +343,3 @@ class ExtraWhere:
     def as_sql(self, compiler=None, connection=None):
         sqls = ["(%s)" % sql for sql in self.sqls]
         return " AND ".join(sqls), list(self.params or ())
-
-
-class SubqueryConstraint:
-    # Even if aggregates or windows would be used in a subquery,
-    # the outer query isn't interested about those.
-    contains_aggregate = False
-    contains_over_clause = False
-
-    def __init__(self, alias, columns, targets, query_object):
-        self.alias = alias
-        self.columns = columns
-        self.targets = targets
-        query_object.clear_ordering(clear_default=True)
-        self.query_object = query_object
-
-    def as_sql(self, compiler, connection):
-        query = self.query_object
-        query.set_values(self.targets)
-        query_compiler = query.get_compiler(connection=connection)
-        return query_compiler.as_subquery_condition(self.alias, self.columns, compiler)