Re: [HACKERS] WIP: BRIN bloom indexes

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От Robert Haas
Тема Re: [HACKERS] WIP: BRIN bloom indexes
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Msg-id CA+TgmoajaQKBUx=vaTUFo6z80dsRzBw__Nu41Q4t06baZep3Ug@mail.gmail.com
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Ответ на [HACKERS] WIP: BRIN bloom indexes  (Tomas Vondra <tomas.vondra@2ndquadrant.com>)
Ответы Re: [HACKERS] WIP: BRIN bloom indexes  (Simon Riggs <simon@2ndquadrant.com>)
Список pgsql-hackers
On Thu, Oct 19, 2017 at 10:15 PM, Tomas Vondra
<tomas.vondra@2ndquadrant.com> wrote:
> Let's see a query like this:
>
>     select * from bloom_test
>      where id = '8db1d4a6-31a6-e9a2-4e2c-0e842e1f1772';
>
> The minmax index produces this plan
>
>    Heap Blocks: lossy=2061856
>  Execution time: 22707.891 ms
>
> Now, the bloom index:
>
>    Heap Blocks: lossy=25984
>  Execution time: 338.946 ms

It's neat to see BRIN being extended like this.  Possibly we could
consider making it a contrib module rather than including it in core,
although I don't have strong feelings about it.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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