Re: Heap WARM Tuples - Design Draft
От | Bruce Momjian |
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Тема | Re: Heap WARM Tuples - Design Draft |
Дата | |
Msg-id | 20160805175655.GE5068@momjian.us обсуждение исходный текст |
Ответ на | Re: Heap WARM Tuples - Design Draft (Claudio Freire <klaussfreire@gmail.com>) |
Ответы |
Re: Heap WARM Tuples - Design Draft
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Список | pgsql-hackers |
On Fri, Aug 5, 2016 at 02:43:37PM -0300, Claudio Freire wrote: > But doing the WARM chain backtracking and checking for previous > versions with appropriate keys should be enough to support this use > case too, it just needs to be well optimized to avoid seriously > impacting performance on the average case. Yes, that was an idea I had to --- if the in-page HOT chain already has the key, we know it is already in the index and we can skip the index addition. -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + As you are, so once was I. As I am, so you will be. + + Ancient Roman grave inscription +
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