Re: Replication slot stats misgivings

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От vignesh C
Тема Re: Replication slot stats misgivings
Дата
Msg-id CALDaNm17OE-sGBPPeGNZ1izZJzC5wqEvdULLZGrin0GoecE5XQ@mail.gmail.com
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Ответ на Re: Replication slot stats misgivings  (Amit Kapila <amit.kapila16@gmail.com>)
Список pgsql-hackers
On Wed, Apr 28, 2021 at 8:59 AM Amit Kapila <amit.kapila16@gmail.com> wrote:
>
> On Tue, Apr 27, 2021 at 11:02 AM vignesh C <vignesh21@gmail.com> wrote:
> >
> > On Tue, Apr 27, 2021 at 9:48 AM vignesh C <vignesh21@gmail.com> wrote:
> > >
> >
> > Attached patch has the changes to update statistics during
> > spill/stream which prevents the statistics from being lost during
> > interrupt.
> >
>
>  void
> -UpdateDecodingStats(LogicalDecodingContext *ctx)
> +UpdateDecodingStats(ReorderBuffer *rb)
>
> I don't think you need to change this interface because
> reorderbuffer->private_data points to LogicalDecodingContext. See
> StartupDecodingContext. Other than that there is a comment in the code
> "Update the decoding stats at transaction prepare/commit/abort...".
> This patch should extend that comment by saying something like
> "Additionally we send the stats when we spill or stream the changes to
> avoid losing them in case the decoding is interrupted."

Thanks for the comments, Please find the attached v4 patch having the
fixes for the same.

Regards,
Vignesh

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