[postgis-users] Bug in astext?

[Luis Mota]

Hi everyone.

I think there is a bug in astext... Is that possible?

I've been writing some functions in plpgsql and if I try to do sth like
 returnText := ''''''''||astext(transform(geomfromtext(''''''POINT(''||
                        longitude||'' ''||
                        latitude||'')'''''',gcsID),
                       20790))||'''''''';
I get an unterminated string...

On the other hand, if I do it like this:
    returnText := astext(transform(geomfromtext(''''''POINT(''||
                        longitude||'' ''||
                        latitude||'')'''''',gcsID),
                       20790));
    returnText := ''''''''||
           substring(returnText FROM 1 FOR length(returnText)-1)
           ||'''''''';
(ie, I pop the last character in the string) everything works fine.

(in these examples, latitude and longitude are floats and pcsID is an int)

As far as I can guess, there is a last character in the return from 
astext() that doesn't let the string end...

Has anyone experienced this?

I'm working with:
 postgis_version  0.7
and
version   PostgreSQL 7.2.1 on i686-pc-linux-gnu, compiled by GCC 2.96

Bye, Luís