Re: Handle infinite recursion in logical replication setup

PSA a test script that demonstrates all the documented steps for
setting up n-way bidirectional replication. These steps are the same
as those documented [1] on the new page "Bidirectional logical
replication".

This script works using the current latest v20* patch set. Each of the
sections of 31.11.1 - 31.11.5 (see below) can be run independently
(just edit the script and at the bottom uncomment the part you want to
test):
31.11.1. Setting bidirectional replication between two nodes
31.11.2. Adding a new node when there is no data in any of the nodes
31.11.3. Adding a new node when data is present in the existing nodes
31.11.4. Adding a new node when data is present in the new node
31.11.5. Generic steps for adding a new node to an existing set of nodes

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Some sample output is also attached.

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[1]
https://www.postgresql.org/message-id/attachment/134464/v20-0004-Document-bidirectional-logical-replication-steps.patch

Kind Regards,
Peter Smith.
Fujitsu Australia