Microsoft KB Archive/277626

= FIX: Distributed partitioned view by using UNION may not use optimal plan =

Article ID: 277626

Article Last Modified on 11/2/2007

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APPLIES TO


 * Microsoft SQL Server 2000 Enterprise Edition
 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Personal Edition
 * Microsoft SQL Server 2000 Standard Edition
 * Microsoft SQL Server 2000 Workgroup Edition

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This article was previously published under Q277626



BUG #: 236307 (SQL2000)



SYMPTOMS
A distributed partitioned view that contains more than 20 UNION clauses may not choose to use an optimal query plan, such as merge union, which can lead to slower than expected performance.



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 service pack for SQL Server 2000

Hotfix information
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next SQL Server service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:   Version      File name      Platform -  8.00.208     S80208i.exe    Intel NOTE: Due to file dependencies, the most recent hotfix or feature that contains the above files may also contain additional files.



STATUS
Microsoft has confirmed this to be a problem in SQL Server 2000. This problem was first corrected in SQL Server 2000 Service Pack 1.

Additional query words: S80208i sp1

Keywords: kbbug kbfix kbmigrate kbqfe kbsqlserv2000fix KB277626

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