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Microsoft distributes Microsoft SQL Server 2008 R2 Service Pack 1 (SP1) fixes in one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security updates that were included with the previous SQL Server 2008 R2 Service Pack 1 (SP1) update release.

Symptoms

Consider the following scenario:

  • You run a Multidimensional Expressions (MDX) query that contains a Data Analysis Expressions (DAX) measure in Microsoft SQL Server 2008 R2 Analysis Services (SSAS 2008 R2).

  • The DAX measure has an expression that contains many levels of nested binary operators.

In this scenario, the query might fail, and you receive the following error message:

The operation has been cancelled due to memory pressure.

Cause

This issue occurs because an inefficient execution plan is generated for the DAX expression if the expression contains many levels of nested binary operators.

Resolution

Cumulative update information

Cumulative update package 5 for SQL Server 2008 R2 SP1

The fix for this issue was first released in Cumulative Update 5. For more information about how to obtain this cumulative update package for SQL Server 2008 R2 SP1, click the following article number to view the article in the Microsoft Knowledge Base:

2659694 Cumulative update package 5 for SQL Server 2008 R2 SP1Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 R2 SP1 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

2567616 The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 SP1 was released

Status

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

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