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daemon status: add column "upstream last seen"

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This displays the interval (in seconds) since the repmgrd instance on
each node last confirmed its upstream node is available.
This commit is contained in:
Ian Barwick
2019-02-23 12:16:34 +09:00
parent 71d151ca87
commit 07097575b1
6 changed files with 91 additions and 31 deletions
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5
dbutils.c
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@@ -5086,7 +5086,10 @@ get_primary_last_seen(PGconn *conn)
initPQExpBuffer(&query);
appendPQExpBufferStr(&query,
"SELECT repmgr.get_primary_last_seen()");
"SELECT CASE WHEN pg_catalog.pg_is_in_recovery() IS FALSE "
" THEN -1 "
" ELSE repmgr.get_primary_last_seen() "
" END AS primary_last_seen ");
res = PQexec(conn, query.data);