Thread: pgsql: Add test coverage for "unchanged toast column" replication code

Add test coverage for "unchanged toast column" replication code path.

It seems pretty unacceptable to have no regression test coverage
for this aspect of the logical replication protocol, especially
given the bugs we've found in related code.

Discussion: https://postgr.es/m/16129-a0c0f48e71741e5f@postgresql.org

Branch
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REL_12_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/8047a7b9dd454a6514ab7d0fcbe27aca3ec2e11c

Modified Files
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src/test/subscription/t/001_rep_changes.pl | 31 +++++++++++++++++++++++++++++-
1 file changed, 30 insertions(+), 1 deletion(-)