Re: For index bloat: VACUUM ANALYZE vs REINDEX/CLUSTER - Mailing list pgsql-general

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Ow Mun Heng wrote:
> On Mon, 2007-09-17 at 22:14 -0700, Joshua D. Drake wrote:
>> Phoenix Kiula wrote:
>>> So a YES/NO question:
>>>
>>> Q: To get rid of index bloat, is a VACUUM ANALYZE enough? Or must I
>>> reindex/cluster indexes?
>> If you overrun your max_fsm_pages, no:
>>   else yes;
>
> Maybe my english suck, but I don't understand the above answer.
>
> If I overrun my Max_FSM_pages then a vacuum analyse is enough to return
> it back to normal.

If you overrun your max_fsm_pages then vacuum analyze IS NOT ENOUGH. If
you do not overrun your max_fsm_pages, yes vacuum analyze can deal with
the issue.

Joshua D. Drake

>
> If I _didn't_ overrun my fsm, then a reindex/cluster is necessary.
>
> Did I get that right? (I feel it's wrong and a reindex/cluster is needed
> only when I overrun my max_fsm)
>
>
>


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