Re: [HACKERS] make async slave to wait for lsn to be replayed - Mailing list pgsql-hackers

Hi, Andy!

On Tue, Apr 2, 2024 at 6:29 AM Andy Fan <zhihuifan1213@163.com> wrote:
> >  Did you forget to attach the new patch?
> >
> > Yes, here it is.
> >
> > [4. text/x-diff; v17-0001-Implement-pg_wal_replay_wait-stored-procedure.patch]...
>
> +        </indexterm>
> +        <function>pg_wal_replay_wait</function> (
> +          <parameter>target_lsn</parameter> <type>pg_lsn</type>,
> +          <parameter>timeout</parameter> <type>bigint</type> <literal>DEFAULT</literal> <literal>0</literal>)
> +        <returnvalue>void</returnvalue>
> +       </para>
>
> Should we return the millseconds of waiting time?  I think this
> information may be useful for customer if they want to know how long
> time it waits for for minitor purpose.

Please, check it more carefully.  In v17 timeout is in integer milliseconds.

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Regards,
Alexander Korotkov