Re: SQL profiler feature in Pgsql?
От | Andrew McMillan |
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Тема | Re: SQL profiler feature in Pgsql? |
Дата | |
Msg-id | 1019179195.376.255.camel@kant.mcmillan.net.nz обсуждение исходный текст |
Ответ на | SQL profiler feature in Pgsql? ("Michael McConnell" <mmcconnell@ena.com>) |
Ответы |
Re: SQL profiler feature in Pgsql?
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Список | pgsql-novice |
On Fri, 2002-04-19 at 04:22, Michael McConnell wrote: > Does Postgresql have something akin to the MSSQL "SQL Profiler" to perform database traces? Any info is appreciated. I don't think there is any tool to fully analyse the detail output that PostgreSQL can generate, in the sort of presentation that MSSQL produces, but you can use "EXPLAIN ....query...." to give a reasonable view of how the query will perform. EXPLAIN ANALYZE and EXPLAIN VERBOSE give substantially more output, but you would have to be a guru, or a very patient person, to be able to parse the output of that. I have found that EXPLAIN <query> is usually sufficient for my needs. Also, don't forget to make sure the tables are ANALYZEd before using it. Regards, Andrew. -- -------------------------------------------------------------------- Andrew @ Catalyst .Net.NZ Ltd, PO Box 11-053, Manners St, Wellington WEB: http://catalyst.net.nz/ PHYS: Level 2, 150-154 Willis St DDI: +64(4)916-7201 MOB: +64(21)635-694 OFFICE: +64(4)499-2267 Are you enrolled at http://schoolreunions.co.nz/ yet?
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