From: Bruce Momjian <maillist@candle.pha.pa.us>
Message-Id: <199907071825.OAA05675@candle.pha.pa.us>
Subject: Re: [HACKERS] Broken select on regular expression  !!!
In-Reply-To: <3742C185.F57328C0@flex.ro> from Constantin Teodorescu at "May
 19,
	1999 01:49:57 pm"
To: Constantin Teodorescu <teo@flex.ro>
Date: Wed, 7 Jul 1999 14:25:26 -0400 (EDT)
CC: PostgreSQL Interfaces <pgsql-interfaces@postgreSQL.org>,
	"pgsql-hackers@postgreSQL.org" <pgsql-hackers@postgreSQL.org>
MIME-Version: 1.0
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Fixed in 6.5 final.


> Hi all,
> 
> I think I have found a bug in regexp based selections.
> Watch this :
> 
> create table regdemo (fld1 varchar(32));
> CREATE
> insert into regdemo values('410');
> INSERT 726409 1
> insert into regdemo values('7410');
> INSERT 726410 1
> insert into regdemo values('source');
> INSERT 726411 1
> insert into regdemo values('destination');
> INSERT 726412 1
> select * from regdemo where fld1 ~* '^sou|^des';
> fld1
> -----------
> source
> destination
> (2 rows)
> 
> select * from regdemo where fld1 ~* '41|^des';
> fld1
> -----------
> 410
> 7410
> destination
> (3 rows)
> 
> select * from regdemo where fld1 ~* '^41|^des';
> fld1
> ----
> (0 rows)
> 
> ^^^^^^^^^^^^^^
> !?!?!?!
> I thought it should return '410' and 'destination' rows. But it returns
> nothing!
> The first select example with ^ in both variants ( ^sou|^des ) works !!!
> The last one ( ^41|^des ) don't !
> 
> Am I missing something?
> I am getting the same result also on 6.4.2 and 6.5 beta 1 versions!
> 
> Best regards,
> -- 
> Constantin Teodorescu
> FLEX Consulting Braila, ROMANIA
> 
> 


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