Re: [SQL] Make COUNT(*) Faster?

2005-07-10 Thread Harald Fuchs
In article <[EMAIL PROTECTED]>, Dawid Kuroczko <[EMAIL PROTECTED]> writes: > Use > EXPLAIN SELECT * FROM yourcountedtable; > Planner seems to track estimated statistics on-the-fly. :) > You can even wrap EXPLAIN SELECT in a pgsql function if you > need it. Do you know how to do that? A functio

Re: [SQL] Make COUNT(*) Faster?

2005-07-10 Thread Tom Lane
Harald Fuchs <[EMAIL PROTECTED]> writes: > FOR row IN EXECUTE 'EXPLAIN SELECT * FROM ' || tbl LOOP > fails with the following message: > ERROR: cannot open non-SELECT query as cursor [ checks CVS history... ] Use 8.0.2 or later. regards, tom lane ---