BUG #3487: regular exp - Mailing list pgsql-bugs

From Mikhail
Subject BUG #3487: regular exp
Date
Msg-id 200707260553.l6Q5rsBr027947@wwwmaster.postgresql.org
Whole thread Raw
Responses Re: BUG #3487: regular exp
List pgsql-bugs
The following bug has been logged online:

Bug reference:      3487
Logged by:          Mikhail
Email address:      Tuchkov.Michail@gmail.com
PostgreSQL version: 8.1
Operating system:   windows 2003 SP2
Description:        regular exp
Details:

Please, help me!
My code:
"IF char_length(substring(str from '^[a-zA-Z]*://'))=0 THEN
   str:= 'http://'||str;
END IF;"

If str= http://www.msn.com then nothing happen
(all is OK), but if str= just www.msn.com then nothing happen too!

Why?

Then I experimen with that:
I change '=' to '<>'
 results:
str=http://www.msn.com -> http://http://www.msn.com
str=www.msn.com -> http://www.msn.com

Thank you.

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