Re: index file bloating still in 7.4 ?

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От Tom Lane
Тема Re: index file bloating still in 7.4 ?
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Msg-id 17172.1066542509@sss.pgh.pa.us
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Ответ на Re: index file bloating still in 7.4 ?  (Seum-Lim Gan <slgan@lucent.com>)
Ответы Re: index file bloating still in 7.4 ?  (Seum-Lim Gan <slgan@lucent.com>)
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Seum-Lim Gan <slgan@lucent.com> writes:
> INFO:  vacuuming "craft.dsperf_rda_or_key"
> INFO:  index "hello242_1105" now contains 1792276 row versions in 6237 pages
> DETAIL:  0 index pages have been deleted, 0 are currently reusable.
> CPU 0.61s/0.36u sec elapsed 17.92 sec.
> INFO:  "hello_rda_or_key": found 0 removable, 1791736 nonremovable
> row versions in 30892 pages
> DETAIL:  1492218 dead row versions cannot be removed yet.

You still haven't got an index-bloat problem.  I am, however, starting
to wonder why you have so many dead-but-unremovable rows.  I think you
must have some client process that's been holding an open transaction
for a long time.

            regards, tom lane

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