Michael Fuhr wrote:
On Fri, Aug 18, 2006 at 10:34:44AM +1000, Chris wrote:
Fabio Victora Hecht wrote:
I was wondering if there's a way to count the results of a query and
return part of the result set it in one query (LIMIT). Because I usually
have to count the results using one query (to tell the user how many
records match the criteria) and show the first 20 records.
I was going to suggest a cursor but I don't think you can get the number
of results a cursor has :(
You can but you have to MOVE to the end, so the backend has to visit
each tuple just as it would for COUNT. I answered a similar question
recently:
http://archives.postgresql.org/pgsql-novice/2006-07/msg00220.php
Thanks for the pointer :)
I do a lot of those type of things too so this may be a way to handle it
better.
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