Re: BRIN indexes
От | Joshua D. Drake |
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Тема | Re: BRIN indexes |
Дата | |
Msg-id | 56AA57D5.6000307@commandprompt.com обсуждение исходный текст |
Ответ на | Re: BRIN indexes (Melvin Davidson <melvin6925@gmail.com>) |
Ответы |
Re: BRIN indexes
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Список | pgsql-general |
On 01/28/2016 09:41 AM, Melvin Davidson wrote: > So, IOW, and the answer to my question is yes, it should be insured that > all pages involved are physically adjacent (by design or by pre-sort) > before creating a BRIN on them. > Further to the point, it is self defeating to have more than one BRIN > index on the table if the columns involved would have mutually > non-adjacent pages. > Therefore, it actually would be good to state that in the documentation, > even it were just a comment. BRIN indexes are best used on INSERT only tables with a sequence of numbers as a PK or indexed column that will be queried against. At least as I understand it. JD -- Command Prompt, Inc. http://the.postgres.company/ +1-503-667-4564 PostgreSQL Centered full stack support, consulting and development.
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