Microsoft KB Archive/841404

= FIX: You may receive a &quot;The query processor could not produce a query plan&quot; error message in SQL Server when you run a query that includes multiple subqueries that use self-joins =

Article ID: 841404

Article Last Modified on 11/2/2007

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APPLIES TO


 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Standard Edition
 * Microsoft SQL Server 2000 Enterprise Edition
 * Microsoft SQL Server 2000 Personal Edition
 * Microsoft SQL Server 2000 Enterprise Edition
 * Microsoft SQL Server 2000 Workgroup Edition
 * Microsoft SQL Server 2000 Desktop Engine (Windows)
 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Enterprise Edition 64-bit

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Bug #: 471380 (SQL Server 8.0)

Bug #: 471266 (SQL Server 8.0)



Microsoft distributes SQL Server 2000 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 2000 fix release.



SYMPTOMS
When you try to run a complex query that includes multiple correlated subqueries and the subqueries use a self-join, you may not be able to run the query successfully. You may also receive the following error message:

Server: Msg 8623, Level 16, State 1, Line 1

Internal Query Processor Error: The query processor could not produce a query plan. Contact your primary support provider for more information.

You may also notice similar behavior when you try to run a merge replication agent for a merge publication that has dynamic filtering enabled.



Service pack information
To resolve this problem, obtain the latest service pack for Microsoft SQL Server 2000. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

290211 How to obtain the latest SQL Server 2000 service pack

Hotfix information
The English version of this fix has the file attributes (or later) 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 tool in Control Panel.   Date         Time   Version            Size    File name -  21-Apr-2004  06:38  2000.80.934.0      78,400  Console.exe 21-Apr-2004 06:38  2000.80.934.0     315,968  Custtask.dll 21-Apr-2004 06:38  2000.80.934.0      33,340  Dbmslpcn.dll 08-Apr-2004 09:12                    786,432  Distmdl.ldf 08-Apr-2004 09:12                  2,359,296  Distmdl.mdf 10-Oct-2003 06:18                        180  Drop_repl_hotfix.sql 21-Apr-2004 06:38  2000.80.934.0   1,905,216  Dtspkg.dll 21-Apr-2004 06:38  2000.80.934.0     528,960  Dtspump.dll 21-Apr-2004 06:38  2000.80.934.0   1,557,052  Dtsui.dll 21-Apr-2004 06:38  2000.80.934.0     639,552  Dtswiz.dll 10-Oct-2003 06:18                    747,927  Instdist.sql 10-Oct-2003 06:18                      1,581  Inst_repl_hotfix.sql 21-Apr-2004 06:38  2000.80.934.0      90,692  Msgprox.dll 21-Apr-2004 06:38  2000.80.934.0      62,024  Odsole70.dll 21-Apr-2004 06:39  2000.80.934.0      25,144  Opends60.dll 21-Apr-2004 06:38  2000.80.934.0      57,904  Osql.exe 21-Apr-2004 06:38  2000.80.934.0     279,104  Pfutil80.dll 10-Oct-2003 06:07                    550,780  Procsyst.sql 08-Apr-2004 09:12                     12,305  Qfe469315.sql 08-Apr-2004 09:12                     19,195  Qfe469571.sql 21-Apr-2004 03:02                  1,104,848  Replmerg.sql 21-Apr-2004 06:38  2000.80.934.0     221,768  Replprov.dll 21-Apr-2004 06:38  2000.80.934.0     307,784  Replrec.dll 21-Apr-2004 03:09  2000.80.934.0     159,813  Replres.rll 10-Oct-2003 06:18                  1,087,150  Replsys.sql 10-Oct-2003 06:18                    986,603  Repltran.sql 21-Apr-2004 06:38  2000.80.934.0     287,304  Rinitcom.dll 21-Apr-2004 06:38  2000.80.934.0      66,112  Semmap.dll 21-Apr-2004 06:38  2000.80.934.0      57,916  Semnt.dll 21-Apr-2004 06:38  2000.80.934.0     492,096  Semobj.dll 21-Apr-2004 03:46  2000.80.934.0     172,032  Semobj.rll 21-Apr-2004 06:38  2000.80.934.0      53,832  Snapshot.exe 11-Mar-2004 14:40                    117,834  Sp3_serv_uni.sql 21-Apr-2004 06:37  2000.80.934.0      28,672  Sqlagent.dll 21-Apr-2004 06:38  2000.80.934.0     311,872  Sqlagent.exe 21-Apr-2004 06:37  2000.80.934.0     168,001  Sqlakw32.dll 21-Apr-2004 06:38  2000.80.934.0      33,344  Sqlctr80.dll 21-Apr-2004 06:38  2000.80.934.0   4,215,360  Sqldmo.dll 21-Apr-2004 06:38                     25,172  Sqldumper.exe 21-Apr-2004 02:56  2000.80.934.0      28,672  Sqlevn70.rll 21-Apr-2004 06:38  2000.80.934.0     180,792  Sqlmap70.dll 21-Apr-2004 06:38  2000.80.934.0     188,992  Sqlmmc.dll 21-Apr-2004 03:53  2000.80.934.0     479,232  Sqlmmc.rll 21-Apr-2004 06:38  2000.80.934.0     401,984  Sqlqry.dll 21-Apr-2004 06:38  2000.80.934.0      57,920  Sqlrepss.dll 21-Apr-2004 06:38  2000.80.934.0   7,626,833  Sqlservr.exe 21-Apr-2004 06:38  2000.80.934.0     590,396  Sqlsort.dll 21-Apr-2004 06:38  2000.80.934.0      45,644  Sqlvdi.dll 21-Apr-2004 06:38  2000.80.934.0     106,588  Sqsrvres.dll 21-Apr-2004 06:38  2000.80.934.0      33,340  Ssmslpcn.dll 21-Apr-2004 06:38  2000.80.934.0      82,492  Ssnetlib.dll 21-Apr-2004 06:38  2000.80.934.0      25,148  Ssnmpn70.dll 21-Apr-2004 06:38  2000.80.934.0     123,456  Stardds.dll 21-Apr-2004 06:38  2000.80.934.0     158,240  Svrnetcn.dll 21-Apr-2004 06:38  2000.80.934.0      76,416  Svrnetcn.exe 21-Apr-2004 06:38  2000.80.934.0      45,132  Ums.dll 21-Apr-2004 06:38  2000.80.934.0      98,872  Xpweb70.dll Note Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.



WORKAROUND
To work around this problem, use the FORCE ORDER query hint to force the join order. However, if you force the join order, the query optimizer may not generate the optimal query plan, and you may experience slow query performance.

For more information about how to use the FORCE ORDER query hint, see the &quot;OPTION Clause&quot; topic in SQL Server Books Online.



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 Microsoft SQL Server 2000 Service Pack 4.

