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* MySQL/PG search times
@ 2003-06-23 18:11 nolan@celery.tssi.com
0 siblings, 2 replies; 3+ messages in thread
From: nolan@celery.tssi.com @ 2003-06-23 18:11 UTC (permalink / raw)
To: pgman@candle.pha.pa.us; +Cc: pgsql-general@postgresql.org
> We require ~* syntax for that, or upper()/lower().
Slowly the light dawns!
If I anchor a ~ search on both ends, it is the same search as =.
Duh!
I converted the prototype over to use ~ and it is running much faster.
I'll try to do some detailed timings against MySQL tonight.
--
Mike Nolan
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: MySQL/PG search times
@ 2003-06-23 18:32 Bruce Momjian <pgman@candle.pha.pa.us>
parent: nolan@celery.tssi.com
1 sibling, 0 replies; 3+ messages in thread
From: Bruce Momjian @ 2003-06-23 18:32 UTC (permalink / raw)
To: nolan@celery.tssi.com; +Cc: pgsql general list <pgsql-general@postgresql.org>
See the FAQ item about index usage. You have to anchor the start only.
---------------------------------------------------------------------------
nolan@celery.tssi.com wrote:
> > We require ~* syntax for that, or upper()/lower().
>
> Slowly the light dawns!
>
> If I anchor a ~ search on both ends, it is the same search as =.
>
> Duh!
>
> I converted the prototype over to use ~ and it is running much faster.
> I'll try to do some detailed timings against MySQL tonight.
> --
> Mike Nolan
>
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: MySQL/PG search times
@ 2003-06-24 01:15 The Hermit Hacker <scrappy@postgresql.org>
parent: nolan@celery.tssi.com
1 sibling, 0 replies; 3+ messages in thread
From: The Hermit Hacker @ 2003-06-24 01:15 UTC (permalink / raw)
To: nolan@celery.tssi.com; +Cc: Bruce Momjian <pgman@candle.pha.pa.us>; pgsql general list <pgsql-general@postgresql.org>
On Mon, 23 Jun 2003 nolan@celery.tssi.com wrote:
> > We require ~* syntax for that, or upper()/lower().
>
> Slowly the light dawns!
>
> If I anchor a ~ search on both ends, it is the same search as =.
'K, now I'm confused ... what does your SELECT look like now?
^ permalink raw reply [nested|flat] 3+ messages in thread
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2003-06-23 18:11 MySQL/PG search times nolan@celery.tssi.com
2003-06-23 18:32 ` Bruce Momjian <pgman@candle.pha.pa.us>
2003-06-24 01:15 ` The Hermit Hacker <scrappy@postgresql.org>
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