Article ID: 294874 - View products that this article applies to.
This article was previously published under Q294874
BUG #: 352700 (SHILOH_BUGS)
You may see performance degradation when both of the following conditions are met:
Under a very narrow set of circumstances that involve multiple OR, EXIST, and subquery clauses, the estimated I/O for the various steps may be incorrectly combined, which results in a sub-optimal plan choice.
To resolve this problem, obtain the latest service pack for SQL Server 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/290211/EN-US/ )INF: How to Obtain the Latest SQL Server 2000 Service Pack
Microsoft has confirmed that this is a problem in SQL Server 2000. This problem was first corrected in SQL Server 2000 Service Pack 1.
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