message: added result checking to tpch test
diff: @@ -12,7 +12,7 @@ pragma verify_parallelism
  statement ok
  CALL dbgen(sf=1);
  -statement ok
  +query IIIII
  select
  grouping(l_returnflag, l_linestatus),
  l_returnflag,
  @@ -22,8 +22,19 @@ select
  from lineitem
  group by cube(l_returnflag, l_linestatus)
  order by all;
  +----
  +0 A F 644207 1256191
  +0 N F 30908 38080
  +0 N O 770587 2428102
  +0 R F 645527 1256438
  +1 A NULL 644207 1256191
  +1 N NULL 780997 2457012
  +1 R NULL 645527 1256438
  +2 NULL F 767956 2421238
  +2 NULL O 770587 2428102
  +3 NULL NULL 1500000 4580667
  -statement ok
  +query IIIIIIIII
  SELECT
  COUNT(DISTINCT l_orderkey),
  COUNT(DISTINCT l_partkey),
  @@ -42,3 +53,5 @@ FROM (
  from lineitem
  group by cube(l_orderkey, l_partkey)
  );
  +----
  +1500000 200000 7701170 1 6000000 1 200000 22584175 2.9325641428510214
  