On Wednesday, August 29, 2018, saurabh shelar <saurabhshelar5(at)gmail(dot)com>
wrote:
>
> As per the document from PG-9.6 it is possible.
>
You cannot use psql variables with -c
“ command must be either a command string that is completely parsable by
the server (i.e., it contains no psql-specific features), or a single
backslash command.”
https://www.postgresql.org/docs/10/static/app-psql.html
David J.