Pavel Stehule wrote:
> can me send your last work?
Sure, it's in the archives --
https://www.postgresql.org/message-id/20161123233130.oqf7jl6czehy5fiw@alvherre.pgsql
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services