Re: [HACKERS] Proposal: Local indexes for partitioned table

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От Robert Haas
Тема Re: [HACKERS] Proposal: Local indexes for partitioned table
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Msg-id CA+TgmoZEydsdPeZaThdcX0nrMQTqSbY9VKka+eyHGD1ZF8jCLw@mail.gmail.com
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Ответ на Re: [HACKERS] Proposal: Local indexes for partitioned table  (Alvaro Herrera <alvherre@alvh.no-ip.org>)
Ответы Re: [HACKERS] Proposal: Local indexes for partitioned table  (David Rowley <david.rowley@2ndquadrant.com>)
Re: [HACKERS] Proposal: Local indexes for partitioned table  (Alvaro Herrera <alvherre@alvh.no-ip.org>)
Список pgsql-hackers
On Fri, Dec 15, 2017 at 5:18 PM, Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
> We have two options for marking valid:
>
> 1. after each ALTER INDEX ATTACH, verify whether the set of partitions
> that contain the index is complete; if so, mark it valid, otherwise do
> nothing.  This sucks because we have to check that over and over for
> every index that we attach
>
> 2. We invent yet another command, say
>     ALTER INDEX <idx-on-parent> VALIDATE

If ALTER INDEX .. ATTACH is already taking AEL on the parent, then I
think it might as well try to validate while it's at it.  But if not
then we might want to go with #2.

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


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