I am using a master and a replica with PostgreSQL 9.1.3.
I would like to measure the replication lag between my servers (in time
On the replica I can use the function pg_last_xact_replay_timestamp().
But on the master I only can use pg_current_xlog_location() which does not
return a timestamp. I do not know any function returning the timestamp.
Is there any way to get the timestamp relative to the result of
Thanks for your help
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