Re: Add last failed connection error message to pg_stat_wal_receiver

The following review has been posted through the commitfest application:
make installcheck-world:  tested, passed
Implements feature:       tested, passed
Spec compliant:           tested, passed
Documentation:            tested, passed

Hello

The patch can be applied to PG master branch without problem and it passed regression and tap tests. I manually tested
thisfeature too and the last conn error is correctly shown in the pg_stat_get_wal_receiver output, which does exactly
asdescribed. I think this feature is nice to have to troubleshoot replication issues on the standby side.
 

thank you

Cary Huang
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Highgo Software Canada