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-rw-r--r--sqlglot/executor/context.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/sqlglot/executor/context.py b/sqlglot/executor/context.py
index e4c4040..a411c18 100644
--- a/sqlglot/executor/context.py
+++ b/sqlglot/executor/context.py
@@ -78,7 +78,7 @@ class Context:
def sort(self, key) -> None:
def sort_key(row: t.Tuple) -> t.Tuple:
self.set_row(row)
- return self.eval_tuple(key)
+ return tuple((t is None, t) for t in self.eval_tuple(key))
self.table.rows.sort(key=sort_key)