Bug #5498 TRIM fails with LEADING or TRAILING if remstr = str

• Submitted: 9 Sep 2004 22:18
• Modified: 14 Sep 2004 8:23
• Reporter: Peter Gulutzan
• Status: Closed
• Category: MySQL Server
• Severity: S3 (Non-critical)
• Version: 4.0
• OS: Linux (SuSE 8.2)
• Assigned to: Ramil Kalimullin
• CPU Architecture: Any

[9 Sep 2004 22:18] Peter Gulutzan

Description:
TRIM (LEADING ...) and TRIM (TRAILING ...) don't work if both strings are equal. 
 

How to repeat:
mysql> select trim(both 'foo' from 'foo'); 
+-----------------------------+ 
| trim(both 'foo' from 'foo') | 
+-----------------------------+ 
|                             | 
+-----------------------------+ 
1 row in set (0.00 sec) 
 
mysql> select trim(leading 'foo' from 'foo'); 
+--------------------------------+ 
| trim(leading 'foo' from 'foo') | 
+--------------------------------+ 
| foo                            | 
+--------------------------------+ 
1 row in set (0.00 sec) 
 
mysql> select trim(trailing 'foo' from 'foo'); 
+---------------------------------+ 
| trim(trailing 'foo' from 'foo') | 
+---------------------------------+ 
| foo                             | 
+---------------------------------+ 
1 row in set (0.00 sec)

[14 Sep 2004 8:23] Ramil Kalimullin

Thank you for your bug report. This issue has been committed to our
source repository of that product and will be incorporated into the
next release.

If necessary, you can access the source repository and build the latest
available version, including the bugfix, yourself. More information 
about accessing the source trees is available at
    http://www.mysql.com/doc/en/Installing_source_tree.html