Microsoft KB Archive/281769

= FIX: Exception Access Violation Encountered During Query Normalization =

Article ID: 281769

Article Last Modified on 10/7/2005

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APPLIES TO


 * Microsoft SQL Server 2000 Standard Edition

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This article was previously published under Q281769



BUG #: 350968 (SQLBUG_80) BUG #: 350800 (SQLBUG_80)



SYMPTOMS
The SQL Server may encounter an access violation exception during normalization. The following or similar stack track is generated in the SQL Server error log indicating you have encountered the failure condition: CGroupProperties::FTableGroup line 52 + 18 bytes COpArg::DeriveNormalizedGroupProperties(CTreeHandle * 0x26d1ac28) line 1250 + 8 bytes COptExpr::DeriveGroupProperties(unsigned long 0) line 2714 + 25 bytes CImpRuleBaseJoinToIdxLookup::BuildSubstitutes(COptExpr * 0x1c933b2c, CRuleContext * 0x26d1b590, CRuleReturn * 0x26d1b5fc) line 1428 CTask_ApplyRule::Perform(int 5799) line 1692 + 46 bytes CMemo::ExecuteTasks(COptTask * 0x1c90b3ac, int 0, int 0) line 3453 + 20 bytes CMemo::OptimizeQuery(CQuery * 0x1c6da8bc, COptExpr * 0x1c8ca63c, double * 0x1c6d430c, int 0, int 0, s_OptimPlans * 0x26d1baf4) line 3779 COptContext::PexprSearchPlan(COptExpr * 0x1c8ca63c) line 1809 + 227 bytes COptContext::PcxteOptimizeQuery(COptExpr * 0x1c8ca63c, DRgCId * 0x26d1df24) line 1337 + 15 bytes CQuery::Optimize line 576 + 16 bytes CQuery::Optimize(unsigned long 1) line 1101 CCvtTree::PqryFromTree(TREE * 0x1c740c9c, IMemObj * 0x1c6da030, CRangeCollection * 0x1c6da85c, unsigned long 0, CCompPlan * 0x1c6da2bc {CCompPlan}) line 1056 + 25 bytes BuildQueryFromTree(TREE * 0x1c740c9c, IMemObj * 0x1c6da030, IMemObj * 0x1c6e0020, IQueryObj * * 0x1c6da800, CRangeCollection * 0x1c6da85c, unsigned long 0, CCompPlan * 0x1c6da2bc {CCompPlan}) line 521 + 31 bytes



RESOLUTION
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next SQL Server service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:   File name     Platform --

s80222i.exe  Intel NOTE: Due to file dependencies, the most recent hotfix or feature that contains the preceding files may also contain additional files.



STATUS
Microsoft has confirmed this to be a problem in SQL Server 2000.



MORE INFORMATION
Because the problem is encountered during query normalization, attempts to view the SHOWPLAN of the query lead to the exception condition as well.

An example of a query that leads to the problem condition follows. It generally requires 2 or more tables resulting in a correlation or grouping evaluation as shown.

SELECT DestinationPage.NetworkId FROM DailyTQSContextUsage_20001103, DestinationPage, Geography WHERE  DESTINATIONPAGE.PAGEID = DAILYTQSCONTEXTUSAGE_20001103.TARGETPAGEID AND Geography.CountryId = DAILYTQSCONTEXTUSAGE_20001103.COUNTRYID

Keywords: kbbug kbfix kbqfe KB281769

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