Re: proposal - psql - use pager for \watch command - Mailing list pgsql-hackers

From Tom Lane
Subject Re: proposal - psql - use pager for \watch command
Date
Msg-id 750844.1593636102@sss.pgh.pa.us
Whole thread Raw
In response to proposal - psql - use pager for \watch command  (Pavel Stehule <pavel.stehule@gmail.com>)
Responses Re: proposal - psql - use pager for \watch command  (Pavel Stehule <pavel.stehule@gmail.com>)
List pgsql-hackers
Pavel Stehule <pavel.stehule@gmail.com> writes:
> I propose new psql environment variable PSQL_WATCH_PAGER. When this
> variable is not empty, then \watch command starts specified pager, and
> redirect output to related pipe. When pipe is closed - by pager, then
> \watch cycle is leaved.

I dunno, this just seems really strange.  With any normal pager,
you'd get completely unusable behavior (per the comments that you
didn't bother to change).  Also, how would the pager know where
the boundaries between successive query outputs are?  If it does
not know, seems like that's another decrement in usability.

            regards, tom lane



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