Thankyou very much for your enlightened comment, it worked a treat. I do not seem to be able to find references to this kind of useful information in the postgresql online manual or in books such as bruce momjian's 'postgresql-introduction and concepts'. Where is this info to be found other than the mailing list?
Thanks again. Regards Steve -----Original Message----- From: Tom Lane [mailto:[EMAIL PROTECTED]] Sent: 04 October 2002 15:48 To: Steve King Cc: PostgreSQL-development Subject: Re: [HACKERS] Bad rules Steve King <[EMAIL PROTECTED]> writes: > I am using postgres 7.2, and have rule on a table which causes a notify if > an insert/update/delete is performed on the table. > The table is very very small. > When performing a simple (very simple) update on the table this takes about > 3 secs, when I remove the rule it is virtually instantaneous. > The rest of the database seems to perform fine, have you any ideas or come > across this before?? Let's see the rule exactly? NOTIFY per se is not slow in my experience. (One thing to ask: have you done a VACUUM FULL on pg_listener in recent memory? Heavy use of LISTEN/NOTIFY does tend to bloat that table if you don't keep after it with VACUUM.) regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])
