Re: [GENERAL] Strange behaviour ? - Mailing list pgsql-general
From | James Boorn |
---|---|
Subject | Re: [GENERAL] Strange behaviour ? |
Date | |
Msg-id | Pine.LNX.3.96.980730100107.5415A-100000@csepp009.acsys.com Whole thread Raw |
In response to | Strange behaviour ? (Daniele Orlandi <daniele@orlandi.com>) |
List | pgsql-general |
look up the differences between varchar and char data types. On Thu, 30 Jul 1998, Daniele Orlandi wrote: > tacacs=> CREATE TABLE bugdb > tacacs-> ( > tacacs-> id int4 default nextval('bugdb_id_seq') primary key, > tacacs-> email varchar(50) NOT NULL, > tacacs-> sdescr varchar(80), > tacacs-> ldescr text, > tacacs-> version char(16), > tacacs-> status char(16), > tacacs-> comments text, > tacacs-> ctime datetime, > tacacs-> mtime datetime > tacacs-> ); > NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index bugdb_pkey for > table bugdb > CREATE > > tacacs=> insert into bugdb values ( 1,'daniele@orlandi.com','Test > BUG','TestText','3.0.0','open' ); > INSERT 2725845 1 > > tacacs=> SELECT id,status,version,email,sdescr FROM bugdb WHERE status = 'open' > ORDER BY id; > id|status | version|email |sdescr > --+----------------+----------------+-------------------+-------- > 1|open |3.0.0 |daniele@orlandi.com|Test BUG > (1 row) > > tacacs=> SELECT id,status,version,email,sdescr FROM bugdb WHERE lower(status) = > 'open' ORDER BY id; > id|status|version|email|sdescr > --+------+-------+-----+------ > (0 rows) > > tacacs=> SELECT id,status,version,email,sdescr FROM bugdb WHERE lower(status) = > 'open ' ORDER BY id; > id|status | version|email |sdescr > --+----------------+----------------+-------------------+-------- > 1|open |3.0.0 |daniele@orlandi.com|Test BUG > (1 row) > > As you may see, LOWER(status) matches only 'open ', not 'open'. > > Is it the correct behaviour of LOWER() when applied to fixed size fields ? > > Regards. > > -- > Daniele > > ------------------------------------------------------------------------------- > "I'd crawl over an acre of 'Visual This++' and 'Integrated Development > That' to get to gcc, Emacs, and gdb. Thank you." > (By Vance Petree, Virginia Power) > ------------------------------------------------------------------------------- > Se telecom italia aggiungesse uno scatto al giorno ad ogni abbonato, dal > primo Gennaio avrebbe rubato 668.954.000.000 Lire. > ------------------------------------------------------------------------------- > Daniele Orlandi - Utility Line Italia - http://www.orlandi.com > Via Mezzera 29/A - 20030 - Seveso (MI) - > /************************************************************ James Boorn boorn@acsys.com --------------------------------------------------------- "All right, brain, I don't like you and you don't like me - so let's just do this and I'll get back to killing you with beer." -- Homer Simpson ************************************************************/
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