Re: psql and readline

From: Peter Mount <peter(at)retep(dot)org(dot)uk>
To: Rod Taylor <rbt(at)rbt(dot)ca>
Cc: Justin Clift <justin(at)postgresql(dot)org>, Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, Dan Langille <dan(at)langille(dot)org>, Robert Treat <xzilla(at)users(dot)sourceforge(dot)net>, Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: psql and readline
Date: 2003-01-09 15:42:15
Message-ID: Pine.LNX.4.44.0301091540220.1613-100000@localhost.localdomain
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On 9 Jan 2003, Rod Taylor wrote:

> On Thu, 2003-01-09 at 10:12, Justin Clift wrote:
> > Bruce Momjian wrote:
> > <snip>
> > > Let's suppose I am writing a query, and then I do \e to edit the query,
> > > and I exit the editor and return to psql. Suppose I decide I want to
> > > reedit, so I up arrow. I would expect to get \e, not the query I just
> > > edited, no?
> >
> > Wouldn't it depend on how this gets implemented?
> >
> > Maybe least negative impact approach (suggested already): If the "large
> > command that was edited" is put in the command history before the \e,
> > then both are available and there is no big change from "expected
> > behaviour".
>
> We could always create a new command that edits a query buffer rather
> than file
>
> \e FILENAME
>
> \E QUERY BUFFER
>
>
> So, history of:
> \E SELECT .......
>
> Selecting this would fire off an editor based on the query to the right
> of the command, much as \e FILENAME opens an editor based on the file to
> the right of the command.

That's a possible one, but the only problem I can see is if the user uses
\e on it's own (ie not read in a file).

Do we then place just \e or \E QUERY BUFFER into the history?

Peter

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