Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp> writes:
> I did some benchmarking with/without multibyte support using current.
> (1) regression test
> (2) pgbench
pgbench unfortunately seems quite irrelevant to this issue, since it
performs no textual operations whatsoever. 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.
regards, tom lane