Thread

Re: [BUGS] General Bug Report: prefix stringsearch doesn't return results

Oleg Bartunov <oleg@sai.msu.su> — 1999-05-28T11:52:39Z

On Fri, 28 May 1999, Unprivileged user wrote:

> Date: Fri, 28 May 1999 07:32:22 -0400 (EDT)
> From: Unprivileged user <nobody@hub.org>
> Reply-To: Josef Moser <jmoser@iicm.edu>
> To: pgsql-bugs@postgreSQL.org
> Subject: [BUGS] General Bug Report: prefix stringsearch doesn't return results
> 
> 
> ============================================================================
>                         POSTGRESQL BUG REPORT TEMPLATE
> ============================================================================
> 
> 
> Your name               : Josef Moser
> Your email address      : jmoser@iicm.edu
> 
> Category                : runtime: back-end: SQL
> Severity                : serious
> 
> Summary: prefix stringsearch doesn't return results
> 
> System Configuration
> --------------------
>   Operating System   : Linux 2.2.7 SUSE6.0; OSF1 V4.0 564 alpha
> 
>   PostgreSQL version : snapshot from: ftp.postgresql.org (May 28 03:06) and (May 26 03:06)
> 
>   Compiler used      : Linux: egcs-2.91.60 ; dec: cc (Digital UNIX Compiler Driver 3.11)
> 
> Hardware:
> ---------
> Pentium II (Deschutes), 512 MB Ram: Linux xfind 2.2.7 #4 SMP Tue May 4 14:21:58 MEST 1999 i686 unknown and
> DEC ALPHA 248MB Ram : OSF1 www V4.0 564 alpha
> 
> Versions of other tools:
> ------------------------
> linux:GNU Make version 3.76.1, flex version 2.5.4
> dec:GNU Make version 3.74 ,flex version 2.5.4
> 
> --------------------------------------------------------------------------
> 
> Problem Description:
> --------------------
> the command SELECT * FROM test_t WHERE word LIKE 'hello%';
> returns no results even when there are some hellos in the 
> database.
> 
> --------------------------------------------------------------------------
> 
> Test Case:
> ----------
> CREATE TABLE bug_t(word TEXT);
> INSERT INTO bug_t VALUES('hello1');
> INSERT INTO bug_t VALUES('hello2');
> SELECT * FROM bug_t where word like 'hello%';
> -- returns 0 results.....
> SELECT * FROM bug_t where word like '%hello%';
> -- returns 2 results
> 

Hmm,
15:59[mira]:~/app/egcs/obj>psql test
Welcome to the POSTGRESQL interactive sql monitor:
  Please read the file COPYRIGHT for copyright terms of POSTGRESQL
[PostgreSQL 6.5.0 on i586-pc-linux-gnulibc1, compiled by gcc egcs-2.91.66]

   type \? for help on slash commands
   type \q to quit
   type \g or terminate with semicolon to execute query
 You are currently connected to the database: test

test=> CREATE TABLE bug_t(word TEXT);
CREATE
test=> INSERT INTO bug_t VALUES('hello1');
INSERT 60937 1
test=> INSERT INTO bug_t VALUES('hello2');
INSERT 60938 1
test=> SELECT * FROM bug_t where word like 'hello%';
word
------
hello1
hello2
(2 rows)
test=> SELECT * FROM bug_t where word like '%hello%';
word
------
hello1
hello2
(2 rows)

No problem. This is Linux x86, 2.0.36, 6.5 current

	Regards,
		Oleg
> 
> --------------------------------------------------------------------------
> 
> Solution:
> ---------
> 
> 
> --------------------------------------------------------------------------
> 
> 

_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83