Microsoft KB Archive/927859

= FIX: You may experience decreased performance when you run a query that contains the CREATE SET statement against a ragged dimension in SQL Server 2005 Analysis Services =

Article ID: 927859

Article Last Modified on 11/4/2007

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APPLIES TO


 * Microsoft SQL Server 2005 Analysis Services

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Bug #: 50000392 (SQL Hotfix)



Notice
Microsoft distributes Microsoft SQL Server 2005 fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2005 fix release.



SUMMARY
This article describes the following about this hotfix release:
 * The issues that are fixed by this hotfix package
 * The prerequisites for applying this hotfix package
 * Information about whether you must restart the computer after you apply this hotfix package
 * Information about whether you must make any registry changes after you apply this hotfix package
 * The files that are contained in this hotfix package



SYMPTOMS
In Microsoft SQL Server 2005 Analysis Services, you may experience decreased performance when you run a query that contains the CREATE SET statement against a ragged dimension. The operation may take a long time to be completed. This problem occurs when you use the HideMemberIf property in the dimension.



CAUSE
This problem occurs because calculating leaf information for a ragged dimension that uses the HideMemberIf property is very resource-intensive. Optimizations for caching the leaf information were enabled only for the DISCOVER operation and the SELECT operation. Therefore, operations such as CREATE SET run very slowly.



Service pack information
To resolve this problem, obtain the latest service pack for SQL Server 2005. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

913089 How to obtain the latest service pack for SQL Server 2005

Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
You must have SQL Server 2005 Service Pack 1 (SP1) installed to apply this hotfix. For more information about how to obtain SQL Server 2005 Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base:

913089 How to obtain the latest service pack for SQL Server 2005

Restart information
You must restart the computer after you apply this hotfix.

Registry information
You do not have to change the registry.

File information
This hotfix contains only those files that are required to correct the issues that this article lists. This hotfix may not contain of all the files that you must have to fully update a product to the latest build.

The English version of this hotfix has the file attributes (or later file attributes) 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 item in Control Panel.

SQL Server 2005 Analysis Services, x64-based version


WORKAROUND
To work around this problem, do not use the HideMemberIf property in the ragged dimension.



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 SQL Server 2005 Service Pack 2.

Keywords: kbsql2005sp2fix kbsql2005as kbfix kbbug kbexpertiseadvanced kbhotfixserver kbqfe kbpubtypekc KB927859

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