Cristina M escreveu:
> - for table t2(l_orderkey int, l_partkey int, l_quantiy, l_tax,
> l_extendedprice, l_discount) I got an error of 42 %.
>
I suspect you have NULLs in your table; they're stored as bitmaps, so they use
little space.
-- Euler Taveira de Oliveira http://www.timbira.com/