Microsoft KB Archive/815593

= FIX: Incorrect Cardinality Estimates for NOT EXISTS Predicates After You Upgrade to SQL Server 2000 Service Pack 3 =

Article ID: 815593

Article Last Modified on 9/27/2005

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APPLIES TO


 * Microsoft SQL Server 2000 Service Pack 3

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BUG #: 364221 (SHILOH_BUGS)



SYMPTOMS
After you upgrade to SQL Server 2000 Service Pack 3, the SQL Server query optimizer may incorrectly estimate the cost for queries that involve a predicate that uses a NOT EXISTS construct. The estimate will be too high, and results in poorly performing queries as compared to SQL Server 2000 Service Pack 2.



Service pack information
To resolve this problem, obtain the latest service pack for Microsoft SQL Server 2000. For additional 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 fix has the file attributes (or later) 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 --

26-Feb-2003 03:41  2000.80.777.0      29,244 bytes  Dbmslpcn.dll 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 01-Feb-2003 00:32  2000.80.763.0   1,557,052 bytes  Dtsui.dll 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 28-Feb-2003 01:34  2000.80.778.0     176,696 bytes  Sqlmap70.dll 08-Feb-2003 06:40  2000.80.765.0      57,920 bytes  Sqlrepss.dll 03-Mar-2003 19:15  2000.80.780.0   7,516,241 bytes  Sqlservr.exe 08-Feb-2003 06:40  2000.80.765.0      45,644 bytes  Sqlvdi.dll 26-Feb-2003 03:41  2000.80.777.0      29,244 bytes  Ssmslpcn.dll 26-Feb-2003 03:41  2000.80.777.0      82,492 bytes  Ssnetlib.dll 28-Feb-2003 01:34  2000.80.778.0      98,872 bytes  Xpweb70.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.

Keywords: kbbug kbfix kbqfe kbsqlserv2000presp4fix kbhotfixserver KB815593

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