Thread: Autovacuum (analyze) on partitioned tables for ATTACH/DETACH/DROP commands

Hello,

While discussing auto analyze on partitioned tables, we recognized that
auto analyze should run on partitioned tables when ATTACH, DETACH
and DROP commands are executed [1].  Partitioned tables are checked
whether they need auto analyze according to their
changes_since_analyze (total number of inserts/updates/deletes on
partitions), but above DDL operations are not counted for now.

To support ATTACH, DETACH and DROP commands, I proposed
the idea as follows:
* I made new configuration parameters,
   autovacuum_analyze_attach_partition,
   autovacuum_analyze_detach_partition and
   autovacuum_analyze_drop_partition to enable/disable this feature.
* When a partition is attached/detached/dropped, pgstat_report_anl_ancestors()
   is called and checks the above configurations.  If ture, the number of
   livetuples of the partition is counted in its ancestor's changed tuples
   in pgstat_recv_anl_ancestors.

Attach the v1 patch.  What do you think?

[1] https://www.postgresql.org/message-id/ce5c3f04-fc17-7139-fffc-037f2c981bec%40enterprisedb.com
-- 
Best regards,
Yuzuko Hosoya
NTT Open Source Software Center

> On 21 Jun 2021, at 10:21, yuzuko <yuzukohosoya@gmail.com> wrote:

> Attach the v1 patch.  What do you think?

This patch no longer applies to HEAD, can you please submit a rebased version
for the commitfest?

--
Daniel Gustafsson        https://vmware.com/

On Wed, Sep 01, 2021 at 11:11:08AM +0200, Daniel Gustafsson wrote:
> This patch no longer applies to HEAD, can you please submit a rebased version
> for the commitfest?

Four weeks later, nothing has happened.  So I have marked the patch as
RwF.
--
Michael