Update column_resolver.py

column_resolver.py

@@ -15,8 +15,4 @@ def build_alias_map(columns: List[str]) -> Dict[str, str]:
 
 def resolve_cols(requested: List[str], available: List[str]) -> List[str]:
     alias = build_alias_map(available)
-    out = []
-    for r in requested:
-        n = _norm(r)
-        out.append(alias.get(n, r))
-    return out
+    return [alias.get(_norm(r), r) for r in requested]