Re: pasting a lot of commands to psql

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Merlin Moncure <mmoncure(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Dmitry Shalashov <skaurus(at)gmail(dot)com>, PostgreSQL General <pgsql-general(at)postgresql(dot)org>
Subject: Re: pasting a lot of commands to psql
Date: 2016-07-07 19:48:50
Message-ID: 20160707194850.GA696890@alvherre.pgsql
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general

Merlin Moncure wrote:
> On Thu, Jul 7, 2016 at 1:18 PM, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> wrote:
> > Tom Lane wrote:
> >
> >> You might have better luck with "psql -n", or maybe not.
> >
> > I've wished sometimes for a "\set READLINE off" psql metacommand for
> > this kind of thing. It's pretty annoying when the text being pasted
> > contains tabs and readline uses to do completion.
>
> Agreed. I've looked at this problem extensively and concur that
> readline is the culprit; I don't think there's any solution on our end
> besides filing a bug with the readline. I also agree with the
> upthread suggestion that the best workaround today is to \e into a
> non-readline based editor (vim qualifies). Having said that, at least
> on linux/gnome, very long pastes can cause severe performance issues
> as well. So for large pastes I go with psql -f.

Hmm, I was doing megabyte-long pastes (longest one over 5 MB) just a few
weeks ago and was pleasantly surprised to discover that they worked just
fine with no noticeable performance problem. I was pasting skype logs
directly from the Linux skype client window into an xterm running cat,
with obviously no readline involved.

--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

In response to

Responses

Browse pgsql-general by date

  From Date Subject
Next Message John R Pierce 2016-07-07 20:09:02 Re: pasting a lot of commands to psql
Previous Message Merlin Moncure 2016-07-07 19:44:02 Re: pasting a lot of commands to psql