Re: [NOVICE] encoding problems

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Cliff Nieuwenhuis <cliff(at)nieusite(dot)com>, PostgreSQL-patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: [NOVICE] encoding problems
Date: 2008-05-07 20:32:43
Message-ID: 200805072032.m47KWh723442@momjian.us
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Alvaro Herrera wrote:
> Bruce Momjian wrote:
> > Alvaro Herrera wrote:
>
> > > Surely psql computes the width of all cells before printing anything.
> >
> > It does, but if you have a value that has a tab, how do you know what
> > tab stop you are on because you don't know the final width of the
> > previous columns at that time, so there is no way to know the width of
> > that cell.
>
> My point is that you don't need to align the tabstops with the start of
> the line, but with the start of the _column_. So the width of the
> previous column doesn't matter.

Alvaro, using spaces instead of the terminal hard tabs was a very good
idea. The output is now:

test=> \x
Expanded display is on.

test=> \df+ xx
List of functions
-[ RECORD 1 ]-------+--------------------
Schema | public
Name | xx
Result data type | text
Argument data types |
Volatility | volatile
Owner | postgres
Language | sql
Source code | SELECT 'a'::text
: WHERE 1 = 1
Description |

Patch attached. It substitutes spaces for the tab.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

Attachment Content-Type Size
/pgpatches/psql_tab text/x-diff 657 bytes

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