Thread: pgsql: Fix pg_recvlogical avoidance of superfluous Standby Status Updat

Fix pg_recvlogical avoidance of superfluous Standby Status Update.

The defect suppressed a Standby Status Update message when bytes flushed
to disk had changed but bytes received had not changed.  If
pg_recvlogical then exited with no intervening Standby Status Update,
the next pg_recvlogical repeated already-flushed records.  The defect
could also cause superfluous messages, which are functionally harmless.
Back-patch to 9.5 (all supported versions).

Discussion: https://postgr.es/m/20200502221647.GA3941274@rfd.leadboat.com

Branch
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REL9_6_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/1ab5b672e43ae89f1eb49107062125936d1e9794

Modified Files
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src/bin/pg_basebackup/pg_recvlogical.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)