Poor performance when query contains anti-join on a complex predicate in SQL Server 2014 SP1

Symptoms

Assume that you run a query that contains anti-join clauses on a complex join predicate, such as conjunction of inequalities. If you run this query in SQL Server 2014 Service Pack 1 (SP1) with a 4199 trace flag enabled, you experience poor performance because of a sub-optimal query plan. 

Resolution

This issue is fixed in the following service pack for SQL Server:


About service packs for SQL Server
About service packs for SQL Server

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

Learn about the terminology  that Microsoft uses to describe software updates.
內容

文章識別碼:3170043 - 最後檢閱時間:2016年7月11日 - 修訂: 1

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