cast to str on native dask series

narwhals-dev · Oct 4, 2024 · 51729c1 · 51729c1
1 parent c3e59d2
commit 51729c1
Showing 1 changed file with 1 addition and 5 deletions.
diff --git a/narwhals/_dask/namespace.py b/narwhals/_dask/namespace.py
@@ -293,11 +293,7 @@ def concat_str(
         ]
 
         def func(df: DaskLazyFrame) -> list[dask_expr.Series]:
-            series = (
-                s
-                for _expr in parsed_exprs
-                for s in _expr.cast(self._dtypes.String())._call(df)
-            )
+            series = (s.astype(str) for _expr in parsed_exprs for s in _expr._call(df))
             null_mask = [s for _expr in parsed_exprs for s in _expr.is_null()._call(df)]
 
             if not ignore_nulls: