Symptoms
Consider the following scenario:
-
You have a SQL Server 2008 or SQL Server 2008 R2 Integration Services (SSIS) package that contains a data flow task.
-
You use the Unpivot transformation in the data flow task.
-
You run the SSIS package several times with the same input data.
In this scenario, the SSIS package may produce inconsistent results. Note If you reduce the value of the DefaultBufferMaxRows property and the DefaultBufferSize property, this issue may occur more frequently.
Resolution
Cumulative update information
SQL Server 2008 Service Pack 1
The fix for this issue was first released in Cumulative Update 10 for SQL Server 2008 Service Pack 1. For more information about this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2279604 Cumulative update 10 for SQL Server 2008 Service Pack 1 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 2008 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:
970365 The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 1 was released
SQL Server 2008 Service Pack 2
The fix for this issue was first released in Cumulative Update 1 for SQL Server 2008 Service Pack 2. For more information about this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2289254 Cumulative update 1 for SQL Server 2008 Service Pack 2Note 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 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:
2402659 The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 2 was released
SQL Server 2008 R2
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, click the following article number to view the article in the Microsoft Knowledge Base:
2438347 Cumulative Update package 5 for SQL Server 2008 R2 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 2008 R2 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:
981356 The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 was released
Hotfix information
A supported hotfix is 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. If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix. Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:
http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
Prerequisites
To apply this hotfix, you must have SQL Server 2008 Service Pack 1 installed.
Restart information
You may have to restart the computer after you apply this hotfix.
Registry information
You do not have to change the registry after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File information
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.
32-bit version file information
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Txunpivot.dll |
2007.100.2790.0 |
128,360 |
24-Jul-2010 |
09:25 |
x86 |
64-bit version file information
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Txunpivot.dll |
2007.100.2790.0 |
194,408 |
24-Jul-2010 |
13:05 |
x64 |
Itanium-architecture version
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Txunpivot.dll |
2007.100.2790.0 |
446,312 |
24-Jul-2010 |
12:29 |
IA-64 |
More Information
For more information about the Unpivot transformation, visit the following Microsoft website:
Unpivot transformationThis hotfix is identical to the hotfix that is documented in KB2287990. For more information about the complete file information for this hotfix package, click the following article number to view the article in the Microsoft Knowledge Base:
2287990 FIX: You receive incorrect result for a Derived Column when you execute an package in Microsoft SQL Server 2008 Integration Services or in Microsoft SQL Server 2008 R2 Integration Services
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
