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_10_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/8b46acf7c423128439423f6677e9d85e286e1806

Modified Files
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src/test/subscription/t/001_rep_changes.pl | 33 +++++++++++++++++++++++++++++-
1 file changed, 32 insertions(+), 1 deletion(-)