Horton

Re: proposal - psql - use pager for \watch command

Pavel Stehule <pavel.stehule@gmail.com>

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From: Pavel Stehule <pavel.stehule@gmail.com>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2021-03-22T04:09:43Z
Lists: pgsql-hackers 
po 22. 3. 2021 v 4:55 odesílatel Thomas Munro <thomas.munro@gmail.com>
napsal:

> On Sun, Mar 21, 2021 at 10:38 PM Pavel Stehule <pavel.stehule@gmail.com>
> wrote:
> > Can somebody help me (with access on macos0 with debugging this issue?
>
> I'll try to figure it out, but maybe after the code freeze.  I started
> my programming career writing curses software a million years ago on a
> couple of extinct Unixes... I might even be able to remember how it
> works.  This is not a problem for committing the PSQL_WATCH_PAGER
> patch, I just mentioned it here because I thought that others might
> try it out on a Mac and be confused.
>

Thank you.

probably there will not be an issue inside ncurses - the most complex part
of get_event is polling of input sources - tty and some other. The pspg
should not to stop there on tty reading.

Regards

Pavel

Commits

  1. Fix \watch's interaction with libedit on ^C.

  2. Add PSQL_WATCH_PAGER for psql's \watch command.

  3. psql: Show all query results by default

  4. Add a comment warning against use of pg_usleep() for long sleeps.