remove unneeded string alloc

pola-rs · Dec 3, 2021 · 634f4bb · 634f4bb
1 parent 7106377
commit 634f4bb
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/polars/polars-lazy/src/physical_plan/executors/stack.rs b/polars/polars-lazy/src/physical_plan/executors/stack.rs
@@ -36,8 +36,7 @@ impl Executor for StackExec {
         })?;
 
         for s in res {
-            let name = s.name().to_string();
-            df.replace_or_add(&name, s)?;
+            df.with_column(s)?;
         }
 
         state.clear_expr_cache();