On Wed, Jul 29, 2020 at 9:41 PM Dave Cramer <davecra...@gmail.com> wrote:
> For logical replication there is no need to implement this, but others are > using the pgoutput plugin for Change Data Capture. The reason they are > using pgoutput is because it is guaranteed to be available as it is in core > postgres. > > Implementing LogicalDecodeMessageCB provides some synchronization facility > that is not easily replicated. > > Thoughts ? > Attached is a draft patch that adds this functionality into the pgoutput plugin. A slot consumer can pass 'messages' as an option to include logical messages from pg_logical_emit_message in the replication flow. FWIW, we have been using pg_logical_emit_message to send application-level events alongside our change-data-capture for about two years, and we would move this part of our stack to pgoutput if message support was available. Looking forward to discussion and feedback. Cheers, Dave
0001-Add-logical-decoding-messages-to-pgoutput.patch.gz
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