QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------ Aggregate (cost=205756.95..205756.95 rows=1 width=0) (actual time= 114675.042..114675.042 rows=1 loops=1) -> Seq Scan on call_log (cost=0.00..193224.16 rows=5013112 width=0) (actual time=11.754..91429.594 rows=5061619 loops=1) Filter: (call_id > 0) Total runtime: 114699.797 ms (4 rows)
it is now taking 114 seconds, i think because of load in my system.... any way will you explain., what is this COST, actual time and other stuffs.... On Thu, Mar 6, 2008 at 12:27 PM, A. Kretschmer < [EMAIL PROTECTED]> wrote: > am Thu, dem 06.03.2008, um 12:17:55 +0530 mailte sathiya psql folgendes: > > TRIGGER i can use if i want the count of the whole table, but i require > for > > some of the rows with WHERE condition.... > > > > so how to do that ??? > > Okay, in this case a TRIGGER are a bad idea. You can use an INDEX on > this row. Can you show us the output for a EXPLAIN ANALYSE SELECT > count(*) from <your_table> WHERE <your_row> = ... ? > > > Andreas > -- > Andreas Kretschmer > Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header) > GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net > > -- > Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) > To make changes to your subscription: > > http://mail.postgresql.org/mj/mj_wwwusr?domain=postgresql.org&extra=pgsql-performance >