Re: possible bug in psql - Mailing list pgsql-sql

From chester c young
Subject Re: possible bug in psql
Date
Msg-id 1338348815.61964.YahooMailClassic@web161406.mail.bf1.yahoo.com
Whole thread Raw
In response to possible bug in psql  (chester c young <chestercyoung@yahoo.com>)
List pgsql-sql
> > do not know if right mailing list
> >
> > in psql in Ubuntu, when beginning with a smaller
> terminal, eg, 80
> > col wide, then moving to a larger terminal, eg, 132 col
> wide, the
> > readline(?) editor in psql still treats like 80 cols,
> making it
> > impossible to edit longer text.   
>
> As far as I know (as this is the behavior in debian stable)
> the ubuntu people use libgettext and not libreadline.
>
> You can force it to use libreadline by using
> LD_PRELOAD.  I reccomend
> that you do I did this by editing /usr/bin/psql which is a
> perl script
>
> In any case linux doesn't propogate SIG_WINCH to the other
> processes
> that are using the pty so even if you are using readline you
> have to
> force this by resizing the window again after exiting the
> pager, and
> then press ctrl-l to clear the screen.

seems to me that Ubuntu is using readline (but I might be wrong)

from /usr/bin/psql:

# libreadline is a lot better than libedit, so prefer that
if ($cmdname eq 'psql') {   my @readlines;   push @readlines, sort(</lib/libreadline.so.*>);   if (@readlines) {
$ENV{'LD_PRELOAD'}= ($ENV{'LD_PRELOAD'} or '') . ':' . $readlines[-1];   } 
}

also, LD_PRELOAD is not referenced anywhere in /etc/postgrest/...


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