message: Fix incorrect hash in test
diff: @@ -15,7 +15,7 @@ SELECT g, STRING_AGG(x, ',') FROM strings GROUP BY g ORDER BY g
  query IT
  SELECT 1, STRING_AGG(x, ',') FROM strings GROUP BY 1 ORDER BY 1
  ----
  -2 values hashing to d2ca0ce547c6a5cdfd774bad1a13cbe6
  +2 values hashing to 3bd0d16b476d2ffe18a77ebe1098b89c
  statement error
  SELECT STRING_AGG(k, ','), SUM(CAST(k AS BIGINT)) FROM (SELECT CAST(g AS VARCHAR) FROM strings UNION ALL SELECT CAST(x AS VARCHAR) FROM strings) tbl1(k)
  