Re: Unicode combining characters

From: Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp>
To: tgl(at)sss(dot)pgh(dot)pa(dot)us
Cc: pgman(at)candle(dot)pha(dot)pa(dot)us, phede-ml(at)islande(dot)org, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Unicode combining characters
Date: 2001-10-03 01:01:22
Message-ID: 20011003100122S.t-ishii@sra.co.jp
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

> Yeah, I suspect there's 10% or more noise in these numbers. But then
> one could read the results as saying we can't reliably measure any
> difference at all ...
>
> I'd feel more confident if the measurements were done using operators
> repeated enough times to yield multiple-second runtimes. I don't
> trust fractional-second time measurements on Unix boxen; too much chance
> of bogus results due to activity of other processes.

Any idea to do that? I tried to do a measurements using something like
"SELECT * FROM t1 WHERE very-long-string-column LIKE 'aaa'", but I'm
afraid the I/O time masks the difference...
--
Tatsuo Ishii

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Barry Lind 2001-10-03 01:03:26 Re: LOCK TABLE oddness in PLpgSQL function called via JDBC
Previous Message Tatsuo Ishii 2001-10-03 01:01:16 Re: [GENERAL] Problem with the accents