Re: logical replication empty transactions

On Thu, Jul 15, 2021 at 3:50 PM osumi.takamichi@fujitsu.com
<osumi.takamichi@fujitsu.com> wrote:
> I started to test this patch but will give you some really minor quick feedbacks.
>
> (1) pg_logical_slot_get_binary_changes() params.
>
> Technically, looks better to have proto_version 3 & two_phase option for the function
> to test empty prepare ? I felt proto_version 1 doesn't support 2PC.
> [1] says "The following messages (Begin Prepare, Prepare, Commit Prepared, Rollback Prepared)
> are available since protocol version 3." Then, if the test wants to skip empty *prepares*,
> I suggest to update the proto_version and set two_phase 'on'.

Updated accordingly.

> (2) The following sentences may start with a lowercase letter.
> There are other similar codes for this.
>
> +               elog(DEBUG1, "Skipping replication of an empty transaction");

Fixed this.

I've addressed these comments in version 8 of the patch.

regards,
Ajin Cherian
Fujitsu Australia