replace self native frame with alias

narwhals-dev · Jan 24, 2025 · 1e2ce0e · 1e2ce0e
1 parent d64d682
commit 1e2ce0e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/narwhals/_duckdb/dataframe.py b/narwhals/_duckdb/dataframe.py
@@ -290,7 +290,7 @@ def join_asof(
             msg = "Only 'backward' and 'forward' strategies are currently supported for DuckDB"
             raise NotImplementedError(msg)
         condition = " and ".join(conditions)
-        select = [f'lhs."{x}"' for x in self._native_frame.columns]
+        select = [f'lhs."{x}"' for x in lhs.columns]
         for col in rhs.columns:
             if col in lhs.columns and (
                 right_on is None or col not in [right_on, *by_right]