Re: Effect of large text field data on queries

[Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>]

Glen Parker <glenebob(at)nwlink(dot)com> writes:
> Why would very large text values effect the speed of a seq scan that 
> does not actually evaluate those values?

More bytes to scan over?  Have you checked the physical table sizes?

I'd actually suppose it's the smaller values (up to a few hundred bytes)
that impact this the most.  Really wide fields would be pushed
out-of-line.

			regards, tom lane