From: | Francisco Olarte <folarte(at)peoplecall(dot)com> |
---|---|
To: | Johann Spies <johann(dot)spies(at)gmail(dot)com> |
Cc: | "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: Bug in documentation (trim(...))? |
Date: | 2019-05-20 10:18:12 |
Message-ID: | CA+bJJbxrcfDPaBA6v7SYFjthLBKcDk0FTA68cPJ=UoLUkDiQYw@mail.gmail.com |
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Lists: | pgsql-general |
On Mon, May 20, 2019 at 12:09 PM Johann Spies <johann(dot)spies(at)gmail(dot)com> wrote:
> The following illustrates the problem (removing double quotes from a string):
Missing "select " in your examples, is it intentional?
> js=# trim(both '"' from '"University of Cape Town"');
> ERROR: syntax error at or near "trim"
> LINE 1: trim(both '"' from '"University of Cape Town"');
> js=# trim(both 'xyz' from 'yxTomxx');
> ERROR: syntax error at or near "trim"
> LINE 1: trim(both 'xyz' from 'yxTomxx');
> ^
> I would think that "trim" if it works in this case would be a cheaper function than using rexexp_replace twice.
( copied from your mail AFTER "select " ):
$ select trim(both '"' from '"University of Cape Town"');
btrim
-------------------------
University of Cape Town
(1 row)
$ select trim(both 'xyz' from 'yxTomxx');
btrim
-------
Tom
(1 row)
Francisco Olarte.
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