Re: Skipping logical replication transactions on subscriber side

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От Masahiko Sawada
Тема Re: Skipping logical replication transactions on subscriber side
Дата
Msg-id CAD21AoAAbQRD8t25fjAm9gM+ESqDqUH47bNxpq=iBD2fp1NJrQ@mail.gmail.com
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Ответ на RE: Skipping logical replication transactions on subscriber side  ("houzj.fnst@fujitsu.com" <houzj.fnst@fujitsu.com>)
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On Wed, Nov 17, 2021 at 12:43 PM houzj.fnst@fujitsu.com
<houzj.fnst@fujitsu.com> wrote:
>
> On Tues, Nov 16, 2021 2:31 PM Masahiko Sawada <sawada.mshk@gmail.com> wrote:
> > Right. I've fixed this issue and attached an updated patch.
>
> Hi,
>
> Thanks for updating the patch.
> Here are few comments.

Thank you for the comments!

>
> 1)
>
> +        <function>pg_stat_reset_subscription_worker</function> ( <parameter>subid</parameter> <type>oid</type>,
<optional><parameter>relid</parameter> <type>oid</type> </optional> )
 
>
> It seems we should put '<optional>' before the comma(',').

Will fix.

>
>
> 2)
> +     <row>
> +      <entry role="catalog_table_entry"><para role="column_definition">
> +       <structfield>subrelid</structfield> <type>oid</type>
> +      </para>
> +      <para>
> +       OID of the relation that the worker is synchronizing; null for the
> +       main apply worker
> +      </para></entry>
> +     </row>
>
> Is the 'subrelid' only used for distinguishing the worker type ? If so, would it
> be clear to have a string value here. I recalled the previous version patch has
> failure_source column but was removed. Maybe I missed something.

As Amit mentioned, users can use this check which table sync worker.

>
>
> 3)
> .
> +extern void pgstat_reset_subworker_stats(Oid subid, Oid subrelid, bool allstats);
>
> I didn't find the code of this functions, maybe we can remove this declaration ?

Will remove.

I'll submit an updated patch.

Regards,

-- 
Masahiko Sawada
EDB:  https://www.enterprisedb.com/



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