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 |
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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
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