> pgbench unfortunately seems quite irrelevant to this issue, since it
> performs no textual operations whatsoever.
Yup.
> It'd be interesting to
> modify pgbench so that it updates the "filler" column somehow on each
> update (perhaps store a text copy of the new balance there), and then
> repeat the tests.
Maybe. I'm not sure if it would show significant differences though.
Anyway, what I'm interested in include:
o regexp/like/ilike operations
o very long text handling
I'll come up with more testings..
--
Tatsuo Ishii