Horton

Re: \if, \elseif, \else, \endif (was Re: PSQL commands: \quit_if, \quit_unless)

Corey Huinker <corey.huinker@gmail.com>

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From: Corey Huinker <corey.huinker@gmail.com>
To: Fabien COELHO <coelho@cri.ensmp.fr>
Cc: Erik Rijkers <er@xs4all.nl>, Tom Lane <tgl@sss.pgh.pa.us>, Jim Nasby <Jim.Nasby@bluetreble.com>, Daniel Verite <daniel@manitou-mail.org>, PostgreSQL <pgsql-hackers@postgresql.org>, pgsql-hackers-owner@postgresql.org
Date: 2017-02-03T16:49:59Z
Lists: pgsql-hackers 
>
> Can anyone think of a reason why Ctrl-C would be a bad idea? If not I'll
>> start looking into it, as I'm not presently aware of what it is used for.
>>
>
> Not me.
>
> Wikipedia, which holds all the knowledge in the universe, says: "In many
> command-line interface environments, control-C is used to abort the current
> task and regain user control."
>

Well played (again). That one ranks up there with "and don't call me
Shirley." I meant in the specific psql-context, does it do anything other
than (attempt to) terminate sent-but-not-received SQL queries?

Commits

  1. Support \if ... \elif ... \else ... \endif in psql scripting.

  2. Add a "void *" passthrough pointer for psqlscan.l's callback functions.