feat: IbisLazyFrame support

narwhals/_compliant/group_by.py

@@ -159,10 +159,13 @@ def _evaluate_expr(self, expr: LazyExprT_contra, /) -> Iterator[NativeExprT_co]:
         if expr._is_multi_output_unnamed():
             for native_expr, name, alias in zip(native_exprs, output_names, aliases):
                 if name not in self._keys:
-                    yield native_expr.alias(alias)
+                    yield self._alias_native_expr(native_expr, alias)
         else:
             for native_expr, alias in zip(native_exprs, aliases):
-                yield native_expr.alias(alias)
+                yield self._alias_native_expr(native_expr, alias)
+
+    def _alias_native_expr(self, native_expr: Any, alias: str) -> Any:
+        return native_expr.alias(alias)
 
     def _evaluate_exprs(
         self, exprs: Iterable[LazyExprT_contra], /

narwhals/_compliant/selectors.py

@@ -130,7 +130,11 @@ def matches(self, pattern: str) -> CompliantSelector[FrameT, SeriesOrExprT]:
         p = re.compile(pattern)
 
         def series(df: FrameT) -> Sequence[SeriesOrExprT]:
-            if is_compliant_dataframe(df) and not self._implementation.is_duckdb():
+            if (
+                is_compliant_dataframe(df)
+                and not self._implementation.is_duckdb()
+                and not self._implementation.is_ibis()
+            ):
                 return [df.get_column(col) for col in df.columns if p.search(col)]
 
             return [ser for ser, name in self._iter_columns_names(df) if p.search(name)]