Re: [HACKERS] Single row fetch from backend

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: Theo Kramer <theo(at)flame(dot)co(dot)za>
Cc: hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] Single row fetch from backend
Date: 1999-08-13 17:03:43
Message-ID: 199908131703.NAA08899@candle.pha.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

>
> Hmmm, I've had pretty bad experiences with cursors on Informix Online. When
> many clients use cursors on large result sets the system (even on big iron)
> grinds to a halt. Luckily you can fetch a single row at a time on a normal
> select with Informix so that solved that. It does appear, however, that
> Postgres does not create huge overheads for cursors, but I would still like
> to see what happens when many clients do a cursor select...

I believe later Informix ODBC version cache the query reqults in the sql
server in case they are needed later. Terrible for performance. I have
clients downgrade to older isql clients.

--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message G. Anthony Reina 1999-08-13 17:28:10 Re: [HACKERS] Aborted Transaction During Vacuum
Previous Message Bruce Momjian 1999-08-13 16:54:30 Re: [HACKERS] Index scan?