Re: Improvements in psql hooks for variables

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: "Daniel Verite" <daniel@manitou-mail.org>
Cc: "Rahila Syed" <rahilasyed90@gmail.com>, "Stephen Frost" <sfrost@snowman.net>, "Ashutosh Bapat" <ashutosh.bapat@enterprisedb.com>, "pgsql-hackers" <pgsql-hackers@postgresql.org>, "Andrew Dunstan" <andrew@dunslane.net>
Date: 2017-01-31T22:13:06Z
Lists: pgsql-hackers

Attachments

BTW ... while I've been fooling with this issue, I've gotten a bit
annoyed at the fact that "\set" prints the variables in, essentially,
creation order.  That makes the list ugly and hard to find things in,
and it exposes some psql implementation details to users.  I propose
the attached simple patch to keep the list in name order instead.

(This is on top of my previous patch, but it'd be pretty trivial
to modify to apply against HEAD.)

			regards, tom lane

Commits

  1. Clean up psql's behavior for a few more control variables.

  2. Make psql's \set display variables in alphabetical order.

  3. Improve psql's behavior for \set and \unset of its control variables.

  4. Make psql reject attempts to set special variables to invalid values.