FIX: A Multidimensional Expressions query that contains a FILTER function returns an incorrect result in SQL Server 2005 Analysis Services

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Article ID: 942654 - View products that this article applies to.
Bug: #50001670 (SQL Hotfix)
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.
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SYMPTOMS

When you run a Multidimensional Expressions (MDX) query in Microsoft SQL Server 2005 Analysis Services, the MDX query returns an incorrect result. This issue occurs if the following conditions are true:
  • The MDX query contains a FILTER function.
  • The FILTER function is nested in a CROSSJOIN function.

RESOLUTION

The fix for this issue was first released in Cumulative Update 4. For more information about how to obtain this cumulative update package for SQL Server 2005 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:
941450 Cumulative update package 4 for SQL Server 2005 Service Pack 2
Note 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 2005 fix release. Microsoft recommends 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:
937137 The SQL Server 2005 builds that were released after SQL Server 2005 Service Pack 2 was released
Microsoft SQL Server 2005 hotfixes are created for specific SQL Server service packs. You must apply a SQL Server 2005 Service Pack 2 hotfix to an installation of SQL Server 2005 Service Pack 2. By default, any hotfix that is provided in a SQL Server service pack is included in the next SQL Server service pack.

STATUS

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

MORE INFORMATION

Example

If you run the following MDX query against the AdventureWorks sample database in SQL Server 2005 Analysis Services, the query returns the correct result:
WITH MEMBER [Reseller].[Product Line].[COG_OQP_INT_sm2] AS 'SUM(   {[Reseller].[Product Line].[Product Line].MEMBERS},
    ([Reseller].[Last Order Year].[COG_OQP_INT_m5]))', SOLVE_ORDER = 6
MEMBER [Reseller].[Last Order Year].[COG_OQP_INT_sm3] AS 'SUM(    {[Reseller].[Last Order Year].[Last Order Year].MEMBERS},
    IIF(        ISEMPTY(  ([Measures].[Growth in Customer Base])),0,  1))', SOLVE_ORDER = 5
MEMBER [Reseller].[Last Order Year].[COG_OQP_INT_m5] AS 'SUM(    {[Reseller].[Last Order Year].[Last Order Year].MEMBERS},
    IIF(        ISEMPTY(  ([Measures].[Growth in Customer Base])),0, 1))', SOLVE_ORDER = 65534
MEMBER [Reseller].[Bank Name].[COG_OQP_INT_sm1] AS '1', SOLVE_ORDER = 7
SELECT
CROSSJOIN(
        UNION(
            CROSSJOIN(
                CROSSJOIN(
                    HEAD(
                        {[Reseller].[Bank Name].[COG_OQP_INT_sm1]}, 1
                     ),
                    {[Reseller].[Product Line].[COG_OQP_INT_sm2]}),
                    {[Reseller].[Last Order Year].[COG_OQP_INT_sm3]}),
            CROSSJOIN(
                {[Reseller].[Bank Name].&[International Bank]},
                CROSSJOIN(
                    {[Reseller].[Product Line].[COG_OQP_INT_sm2]},
                    {[Reseller].[Last Order Year].[COG_OQP_INT_sm3]}))),
            {[Measures].[Growth in Customer Base]})
ON AXIS(0) 
FROM [Adventure Works]
CELL PROPERTIES VALUE
The following is the correct result:
COG_OQP_INT_sm1                 International Bank
COG_OQP_INT_sm2                 COG_OQP_INT_sm2
COG_OQP_INT_sm3                 COG_OQP_INT_sm3
Growth in Customer Base         Growth in Customer Base
1                               11
However, when you run the following MDX query, the query returns an incorrect result:
WITH MEMBER [Reseller].[Product Line].[COG_OQP_INT_sm2] AS 'SUM(   {[Reseller].[Product Line].[Product Line].MEMBERS},
    ([Reseller].[Last Order Year].[COG_OQP_INT_m5]))', SOLVE_ORDER = 6
MEMBER [Reseller].[Last Order Year].[COG_OQP_INT_sm3] AS 'SUM(    {[Reseller].[Last Order Year].[Last Order Year].MEMBERS},
    IIF(        ISEMPTY(  ([Measures].[Growth in Customer Base])),0,  1))', SOLVE_ORDER = 5
MEMBER [Reseller].[Last Order Year].[COG_OQP_INT_m5] AS 'SUM(    {[Reseller].[Last Order Year].[Last Order Year].MEMBERS},
    IIF(        ISEMPTY(  ([Measures].[Growth in Customer Base])),0, 1))', SOLVE_ORDER = 65534
MEMBER [Reseller].[Bank Name].[COG_OQP_INT_sm1] AS '1', SOLVE_ORDER = 7
SELECT
CROSSJOIN(
        UNION(
            CROSSJOIN(
                CROSSJOIN(
                    HEAD(
                        {[Reseller].[Bank Name].[COG_OQP_INT_sm1]},
                        -- If you replace the following parameter with a value of 1, the query returns the correct result.
                         IIF(
                             COUNT(
                                 CROSSJOIN(
                                     FILTER(
                                         {[Reseller].[Bank Name].[Bank Name].MEMBERS},
                                         ([Measures].[Growth in Customer Base],
                                          [Reseller].[Product Line].[COG_OQP_INT_sm2],
                                          [Reseller].[Last Order Year].[COG_OQP_INT_sm3])>= 11),
                                     {[Reseller].[Product Line].[Product Line].MEMBERS}
                                 ),
                                 INCLUDEEMPTY
                             ) > 0, 1, 0
                         )
                        ----------
                     ),
                    {[Reseller].[Product Line].[COG_OQP_INT_sm2]}),
                    {[Reseller].[Last Order Year].[COG_OQP_INT_sm3]}),
            CROSSJOIN(
                {[Reseller].[Bank Name].&[International Bank]},
                CROSSJOIN(
                    {[Reseller].[Product Line].[COG_OQP_INT_sm2]},
                    {[Reseller].[Last Order Year].[COG_OQP_INT_sm3]}))),
            {[Measures].[Growth in Customer Base]})
ON AXIS(0) 
FROM [Adventure Works]
 CELL PROPERTIES VALUE
The following is the incorrect result:
COG_OQP_INT_sm1                 International Bank
COG_OQP_INT_sm2                 COG_OQP_INT_sm2
COG_OQP_INT_sm3                 COG_OQP_INT_sm3
Growth in Customer Base         Growth in Customer Base
1                               15
In this MDX query, the second parameter of the HEAD function, which has a value of 1, is replaced with an IIF function. The IIF function returns the same value, 1. However, the result of this MDX query differs from the MDX query that is mentioned earlier.

For more information about what files are changed, and for information about any prerequisites to apply the cumulative update package that contains the hotfix that is described in this Microsoft Knowledge Base article, click the following article number to view the article in the Microsoft Knowledge Base:
941450 Cumulative update package 4 for SQL Server 2005 Service Pack 2

REFERENCES

For more information about the list of builds that are available after SQL Server Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:
937137 The SQL Server 2005 builds that were released after SQL Server 2005 Service Pack 2 was released
For more information about the Incremental Servicing Model for SQL Server, click the following article number to view the article in the Microsoft Knowledge Base:
935897 An Incremental Servicing Model is available from the SQL Server team to deliver hotfixes for reported problems
For more information about how to obtain SQL Server 2005 Service Pack 2, 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
For more information about the new features and the improvements in SQL Server 2005 Service Pack 2, visit the following Microsoft Web site:
http://go.microsoft.com/fwlink/?LinkId=71711
For more information about the naming schema for SQL Server updates, click the following article number to view the article in the Microsoft Knowledge Base:
822499 New naming schema for Microsoft SQL Server software update packages
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Properties

Article ID: 942654 - Last Review: October 9, 2007 - Revision: 1.1
APPLIES TO
  • Microsoft SQL Server 2005 Analysis Services
Keywords: 
kbsql2005as kbhotfixrollup kbfix kbpubtypekc kbqfe kbexpertiseadvanced KB942654

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