Microsoft KB Archive/814509

= FIX: A parallel query may return unexpected results =

Article ID: 814509

Article Last Modified on 11/2/2005

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APPLIES TO


 * Microsoft SQL Server 2000 Standard Edition

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BUG #: 364025 (SHILOH_BUGS)



SYMPTOMS
When the following conditions are met, a parallel query may return unexpected results:
 * The query uses a parallel nonclustered index scan in the execution plan.
 * The query contains an IS NULL condition in the WHERE clause of the query.



Service pack information
To resolve this problem, obtain the latest service pack for Microsoft SQL Server 2000. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

290211 How to obtain the latest SQL Server 2000 service pack

Hotfix information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version         Size             File name -

08-Feb-2003 05:43                    786,432 bytes  Distmdl.ldf 08-Feb-2003 05:43                  2,359,296 bytes  Distmdl.mdf 30-Jan-2003 01:55                        180 bytes  Drop_repl_hotfix.sql 30-Jan-2003 05:18                    746,470 bytes  Instdist.sql 30-Jan-2003 01:55                      1,402 bytes  Inst_repl_hotfix.sql 08-Feb-2003 06:40  2000.80.765.0      90,692 bytes  Msgprox.dll 08-Feb-2003 03:53                  1,065,895 bytes  Replmerg.sql 08-Feb-2003 06:40  2000.80.765.0     221,768 bytes  Replprov.dll 08-Feb-2003 06:40  2000.80.765.0     307,784 bytes  Replrec.dll 30-Jan-2003 05:18                  1,084,318 bytes  Replsys.sql 08-Feb-2003 06:40  2000.80.765.0     176,696 bytes  Sqlmap70.dll 08-Feb-2003 06:40  2000.80.765.0      57,920 bytes  Sqlrepss.dll 08-Feb-2003 06:41  2000.80.765.0   7,528,529 bytes  Sqlservr.exe 08-Feb-2003 06:40  2000.80.765.0      45,644 bytes  Sqlvdi.dll 08-Feb-2003 06:40  2000.80.765.0      82,492 bytes  Ssnetlib.dll Note Because of file dependencies, the most recent hotfix or feature that contains the files may also contain additional files.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Microsoft SQL Server 2000 Service Pack 4.



MORE INFORMATION
This hotfix is also available in the MS03-031 security patch. For more information about the MS03-031 security patch, click the following article number to view the article in the Microsoft Knowledge Base:

821277 MS03-031: Security patch for SQL Server 2000 Service Pack 3

Keywords: kbbug kbfix kbqfe kbsqlserv2000presp4fix kbhotfixserver KB814509

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