Re: Allow batched insert during cross-partition updates

From: Etsuro Fujita <etsuro(dot)fujita(at)gmail(dot)com>
To: Amit Langote <amitlangote09(at)gmail(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, vignesh C <vignesh21(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "houzj(dot)fnst(at)fujitsu(dot)com" <houzj(dot)fnst(at)fujitsu(dot)com>, Zhihong Yu <zyu(at)yugabyte(dot)com>, "gkokolatos(at)pm(dot)me" <gkokolatos(at)pm(dot)me>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, "tsunakawa(dot)takay(at)fujitsu(dot)com" <tsunakawa(dot)takay(at)fujitsu(dot)com>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>
Subject: Re: Allow batched insert during cross-partition updates
Date: 2022-12-14 09:44:48
Message-ID: CAPmGK16HE3kdZcig+E_OFg8z4YZNrwshZA8ju7Mwy9kU-91dZQ@mail.gmail.com
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On Thu, Dec 8, 2022 at 8:01 PM Etsuro Fujita <etsuro(dot)fujita(at)gmail(dot)com> wrote:
> On Thu, Dec 8, 2022 at 5:00 PM Amit Langote <amitlangote09(at)gmail(dot)com> wrote:
> > Updated patch attached.
>
> I will review the patch a bit more, but I think
> it would be committable.

One thing I noticed is this bit:

-- Clean up
-DROP TABLE batch_table, batch_cp_upd_test, batch_table_p0,
batch_table_p1 CASCADE;
+DROP TABLE batch_table, batch_table_p0, batch_table_p1,
batch_cp_upd_test, cmdlog CASCADE;

This would be nitpicking, but this as-proposed will not remove remote
tables created for foreign-table partitions of the partitioned table
‘batch_cp_upd_test’. So I modified this a bit further to remove them
as well. Also, I split this into two, for readability. Another thing
is a typo in a test-case comment: s/a single INSERTs/a single INSERT/.
I fixed it as well. Other than that, the patch looks good to me.
Attached is an updated patch. If there are no objections, I will
commit the patch.

Best regards,
Etsuro Fujita

Attachment Content-Type Size
v11-0001-Allow-batching-of-inserts-during-cross-partition-efujita.patch application/octet-stream 8.7 KB

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