message: Issue HUGEINT FIRST parallelism
  Move the FIRST tests to a guarded section.
diff: statement ok
  PRAGMA enable_verification
  -# first aggr gets confused otherwise
  -statement ok
  -PRAGMA threads=1
  -
  statement ok
  CREATE TABLE hugeints(g INTEGER, h HUGEINT);
  @@ -28,3 +24,21 @@ SELECT g, MIN(h), MAX(h), SUM(h), FIRST(h) FROM hugeints GROUP BY g ORDER BY 1;
  ----
  1 -12 42 30 42
  2 -439847238974238975238975 1267650600228229401496703205376 1267650160380990427257727966401 1267650600228229401496703205376
  +
  +# first aggr gets confused otherwise
  +statement ok
  +PRAGMA threads=1
  +
  +# ungrouped aggregate
  +query I
  +SELECT FIRST(h) FROM hugeints;
  +----
  +42
  +
  +# grouped aggregate
  +query II
  +SELECT g, FIRST(h) FROM hugeints GROUP BY g ORDER BY 1;
  +----
  +1 42
  +2 1267650600228229401496703205376
  +
  