| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
| Cc: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>, Maksim Milyutin <milyutinma(at)gmail(dot)com> |
| Subject: | Re: [HACKERS] Proposal: Local indexes for partitioned table |
| Date: | 2017-12-17 03:22:02 |
| Message-ID: | CA+TgmoZEydsdPeZaThdcX0nrMQTqSbY9VKka+eyHGD1ZF8jCLw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Dec 15, 2017 at 5:18 PM, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)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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