fix sort multiple with booleans

polars/polars-core/src/series/series_trait.rs

@@ -43,7 +43,7 @@ pub(crate) mod private {
 
     pub trait PrivateSeriesNumeric {
         fn bit_repr_is_large(&self) -> bool {
-            unimplemented!()
+            false
         }
         fn bit_repr_large(&self) -> UInt64Chunked {
             unimplemented!()

py-polars/tests/test_queries.py

@@ -0,0 +1,16 @@
+import polars as pl
+
+
+def test_sort_by_bools() -> None:
+    # tests dispatch
+    df = pl.DataFrame(
+        {
+            "foo": [1, 2, 3],
+            "bar": [6.0, 7.0, 8.0],
+            "ham": ["a", "b", "c"],
+        }
+    )
+    out = df.with_column((pl.col("foo") % 2 == 1).alias("foo_uneven")).sort(
+        by=["foo", "foo_uneven"]
+    )
+    assert out.shape == (3, 4)