Re: HOT - preliminary results
От | Pavan Deolasee |
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Тема | Re: HOT - preliminary results |
Дата | |
Msg-id | 45E7CBAC.9090100@enterprisedb.com обсуждение исходный текст |
Ответ на | Re: HOT - preliminary results ("Zeugswetter Andreas ADI SD" <ZeugswetterA@spardat.at>) |
Ответы |
Re: HOT - preliminary results
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Список | pgsql-hackers |
Zeugswetter Andreas ADI SD wrote: >>> accounts 157895 (initial size) 49284 (increase) >>> accounts_pkey 19709 (initial size) 19705 (increase) >>> >>> >> Just to clarify, the relation size and increase is in number >> of blocks. > > The numbers are quite impressive :-) Have you removed the selects on > accounts too ? Yes. In the first set of results, SELECT on accounts is removed. > Seems that should also show improvements. > > Do you prune chains during update also ? Yes, we do prune the chains during UPDATE, but only when we run out of free space and LP_DELETEd items on the page. And we prune all chains on the page in that case. Thanks, Pavan
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