Обсуждение: Query performance difference
I have a question regarding query performance from two pgsql applications. PGadmin III 1.8 and Navicat for postgresql 8. Both connected to same server on local machine 8.3 and runs a same query for appox. 1,60,000 rows with one min, one max and addition of the min and max values on two tables joined on an integer column gives different query execution times with noticible difference. PGAdmin gives 9350ms and Navicat gives 2110ms. Why? What will be the difference?
Is it in their query execution methods, with/without indexes etc?.
Thanks
CPK
It may be worth-wile to generate an explain plan
http://www.postgresql.org/docs/8.3/interactive/sql-explain.html
From: pgsql-admin-owner@postgresql.org [mailto:pgsql-admin-owner@postgresql.org] On Behalf Of c k
Sent: Thursday, August 21, 2008 2:49 PM
To: pgsql-general@postgresql.org; pgsql-admin@postgresql.org
Subject: [ADMIN] Query performance difference
Hello,
I have a question regarding query performance from two pgsql applications. PGadmin III 1.8 and Navicat for postgresql 8. Both connected to same server on local machine 8.3 and runs a same query for appox. 1,60,000 rows with one min, one max and addition of the min and max values on two tables joined on an integer column gives different query execution times with noticible difference. PGAdmin gives 9350ms and Navicat gives 2110ms. Why? What will be the difference?
Is it in their query execution methods, with/without indexes etc?.
Thanks
CPK
The information in this email or in any file attached hereto is intended only for the personal and confidential use of the individual or entity to which it is addressed and may contain information that is proprietary and confidential. If you are not the intended recipient of this message you are hereby notified that any review, dissemination, distribution or copying of this message is strictly prohibited. This communication is for information purposes only and should not be regarded as an offer to sell or as a solicitation of an offer to buy any financial product. Email transmission cannot be guaranteed to be secure or error-free. P6070214