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From derby-...@db.apache.org
Subject [jira] Created: (DERBY-20) LIKE handles strings with control characters incorrectly.
Date Wed, 29 Sep 2004 19:11:50 GMT
Message:

  A new issue has been created in JIRA.

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View the issue:
  http://issues.apache.org/jira/browse/DERBY-20

Here is an overview of the issue:
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        Key: DERBY-20
    Summary: LIKE handles strings with control characters incorrectly.
       Type: Bug

     Status: Unassigned
   Priority: Minor

    Project: Derby
 Components: 
             SQL
   Versions:
             10.0.2.0

   Assignee: 
   Reporter: Tulika Agrawal

    Created: Wed, 29 Sep 2004 12:11 PM
    Updated: Wed, 29 Sep 2004 12:11 PM

Description:
Reporting for Daniel John Debrunner.

If a string contains control characters in the regions matched 
by wild card characters then in some situations a LIKE will 
return false instead of true and the row will not be returned.

Caused by the dynamic like optimization using >= with a prefix 
which is is equivalent to >= on the prefeix appended with 
blanks and not null (\u0000) characters.


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