| From: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
| Cc: | Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: PATCH: logical_work_mem and logical streaming of large in-progress transactions |
| Date: | 2020-01-23 03:37:23 |
| Message-ID: | CAA4eK1LH7xzF+-qHRv9EDXQTFYjPUYZw5B7FSK9QLEg7F603OQ@mail.gmail.com |
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On Wed, Jan 22, 2020 at 10:07 PM Alvaro Herrera
<alvherre(at)2ndquadrant(dot)com> wrote:
>
> I looked at this patchset and it seemed natural to apply 0008 next
> (adding work_mem to subscriptions).
>
I am not so sure whether we need this patch as the exact scenario
where it can help is not very clear to me and neither did anyone
explained. I have raised this concern earlier as well [1]. The point
is that 'logical_decoding_work_mem' applies to the entire
ReorderBuffer in the publisher's side and how will a parameter from a
particular subscription help in that?
--
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com
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