Hi Dmitry,
This patch appears too complex to be submitted to the last CF, as Andres
has also noted [1].
I have set the target version to PG13.
Regards,
--
-David
david(at)pgmasters(dot)net
[1]
https://www.postgresql.org/message-id/20190216054526.zss2cufdxfeudr4i%40alap3.anarazel.de