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* Broken select on regular expression !!!
@ 1999-05-19 13:49 Constantin Teodorescu <teo@flex.ro>
0 siblings, 1 reply; 2+ messages in thread
From: Constantin Teodorescu @ 1999-05-19 13:49 UTC (permalink / raw)
To: pgsql-interfaces; pgsql-hackers@postgreSQL.org <pgsql-hackers@postgresql.org>
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
^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: [HACKERS] Broken select on regular expression !!!
@ 1999-07-07 18:25 Bruce Momjian <maillist@candle.pha.pa.us>
parent: Constantin Teodorescu <teo@flex.ro>
0 siblings, 0 replies; 2+ messages in thread
From: Bruce Momjian @ 1999-07-07 18:25 UTC (permalink / raw)
To: Constantin Teodorescu <teo@flex.ro>; +Cc: pgsql-interfaces; pgsql-hackers@postgreSQL.org <pgsql-hackers@postgreSQL.org>
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
>
>
--
Bruce Momjian | http://www.op.net/~candle
maillist@candle.pha.pa.us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
^ permalink raw reply [nested|flat] 2+ messages in thread
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1999-05-19 13:49 Broken select on regular expression !!! Constantin Teodorescu <teo@flex.ro>
1999-07-07 18:25 ` Bruce Momjian <maillist@candle.pha.pa.us>
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