Re: pg_statio_all_indexes
От
Shoaib Mir
Тема
Re: pg_statio_all_indexes
Дата
Msg-id
bf54be870607301116j1e67c977n2ae745d114cc5f26@mail.gmail.com
Ответ на
pg_statio_all_indexes (David Hoksza)
Список
Дерево обсуждения
pg_statio_all_indexes David Hoksza <david.hoksza@seznam.cz>
Re: pg_statio_all_indexes Tom Lane <tgl@sss.pgh.pa.us>
Re: pg_statio_all_indexes David Hoksza <david.hoksza@seznam.cz>
Re: pg_statio_all_indexes "Shoaib Mir" <shoaibmir@gmail.com>
As per my understanding, 'pg_statio_all_indexes' displays "idx_blks_hit" using "pg_stat_get_blocks_hit(oid)" where the function "pg_stat_get_blocks_hit" gets number of disk block requests found in cache for a table or index.
Hope this helps...
Thanks,
--
Shoaib Mir
EnterpriseDB (www.enterprisedb.com)
Hope this helps...
Thanks,
--
Shoaib Mir
EnterpriseDB (www.enterprisedb.com)
On 7/30/06, David Hoksza <david.hoksza@seznam.cz> wrote:
Hi, I'm not sure about the value idx_blks_hit of pg_statio_all_indexes
view. Is it total value of touched pages, or do I get total value when
I add idx_blks_read to it?
In other words - does idx_blks_hit cover also physical reads?
Thanks,
David Hoksza
---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
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