Thread: can i decrease the query time?
11-21-02, 02:02 #1Registered User
- Join Date
- Nov 2002
Unanswered: can i reduce the query time?
i created index already. how can i decrease the query time more.
number of record is over 1 million.
the following is the query plan.
Group (cost=34082.59..34085.62 rows=61 width=112)
-> Sort (cost=34082.59..34082.59 rows=607 width=112)
-> Nested Loop (cost=0.00..34054.51 rows=607 width=112)
-> Nested Loop (cost=0.00..125.64 rows=2 width=108)
-> Nested Loop (cost=0.00..8.84 rows=1 width=22)
-> Index Scan using tbl_member_pkey on tbl_member d (cost=0.00..5.14 rows=1 width=18)
-> Index Scan using tbl_company_pkey on tbl_company c (cost=0.00..3.68 rows=1 width=4)
-> Index Scan using tbl_adpage_pkey on tbl_adpage b (cost=0.00..112.65 rows=332 width=86)
-> Index Scan using tbl_showlog_adpage_id_idx on tbl_showlog a (cost=0.00..20370.75 rows=5466 width=4)
Last edited by ernestso; 11-21-02 at 04:02.
11-21-02, 04:35 #2Registered User
- Join Date
- Sep 2001
did you quoted the id wirths '1
this gives some small perforamance
But i don't think you can have some more speed
You don't have more than 10 tables do you.
If so you have to make explicit joins
But if you have less than 9 tables that does not matter
--Postgresql is the only kind of thing--