Re: max_fsm_pages
От | Matthew T. O'Connor |
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Тема | Re: max_fsm_pages |
Дата | |
Msg-id | 40E471C9.6010503@zeut.net обсуждение исходный текст |
Ответ на | max_fsm_pages (<wespvp@syntegra.com>) |
Список | pgsql-general |
If you increase max_fsm_pages to a large enough number then the next vacuum analyze will make all the pages with free space available to be reused. A normal VACUUM does not actually reclaim space (unless it's at the end of the table I think), it only marks the space as reuseable. VACUUM FULL will reclaim space immediately. Matthew wespvp@syntegra.com wrote: > If max_fsm_pages is too small and I have space not reclaimed by vacuum, if I > increase max_fsm_pages and restart postmaster, will the next VACUUM ANALYZE > relcaim all overlooked pages or must I do a VACUUM FULL? > > Wes > > > ---------------------------(end of broadcast)--------------------------- > TIP 9: the planner will ignore your desire to choose an index scan if your > joining column's datatypes do not match >
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