Re: pl/perl Documentation

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Duncan Adams (DNS)" <duncan(dot)adams(at)vcontractor(dot)co(dot)za>
Cc: pgsql-novice(at)postgresql(dot)org
Subject: Re: pl/perl Documentation
Date: 2002-05-22 14:24:48
Message-ID: 24004.1022077488@sss.pgh.pa.us
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"Duncan Adams (DNS)" <duncan(dot)adams(at)vcontractor(dot)co(dot)za> writes:
> CREATE or REPLACE FUNCTION remspace(TEXT) RETURN TEXT
> AS '
> @_ =~ s/\s*//;
> return @_'
> LANGUAGE 'plperl';

I'm not much of a Perl hacker, but even I can see that this is not good
Perl. You need a semicolon to finish the return statement, and I think
you want to manipulate the first element of the @_ array, not the whole
array. So something like

CREATE or REPLACE FUNCTION remspace(TEXT) RETURN TEXT AS '
$_[0] =~ s/\s*//;
return $_[0];
' LANGUAGE 'plperl';

would probably do what you want.

I'd recommend getting hold of a book about Perl.

regards, tom lane

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