Article ID: 892392
Article Last Modified on 11/2/2007
APPLIES TO
- Microsoft SQL Server 2000 Desktop Engine (Windows)
- Microsoft SQL Server 2000 Developer Edition
- Microsoft SQL Server 2000 Enterprise Edition
- Microsoft SQL Server 2000 Personal Edition
- Microsoft SQL Server 2000 Standard Edition
- Microsoft SQL Server 2000 Workgroup Edition
- Microsoft SQL Server 2000 Developer Edition
- Microsoft SQL Server 2000 Enterprise Edition 64-bit
Bug #: 473244 (SQL Server 8.0)
Microsoft distributes Microsoft 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.
SUMMARY
This article describes the following about this hotfix release:
- The issues that are fixed by this hotfix package
- The prerequisites for installing the hotfix package
- Whether you must restart the computer after you install the hotfix package
- Whether the hotfix package is replaced by any other hotfix package
- Whether you must make any registry changes
- The files that are contained in the hotfix package
SYMPTOMS
After you upgrade to Microsoft SQL Server 2000 from SQL Server 7.0, query performance may be slower if the query contains both a GROUP BY clause and a DISTINCT keyword on the same column. For example, a query that is similar to the following may perform slower after you upgrade to SQL Server 2000:
SELECT MAX(B.OrderDate), A.ExpensePeriod, B.TransactionType FROM (SELECT DISTINCT ExpensePeriod FROM ExpensesPaid) A, Orders GROUP BY A.ExpensePeriod, B.TransactionType HAVING (B.TransactionType = 'R')
Note In this query, the A.ExpensePeriod column is used in both the DISTINCT keyword and in a GROUP BY clause.
For a list of all publicly released SQL Server 2000 post-Service Pack 3a hotfixes, see the following article in the Microsoft Knowledge Base:
810185 SQL Server 2000 hotfix update for SQL Server 2000 Service Pack 3 and 3a
CAUSE
In SQL Server 2000, the query optimizer removes unnecessary operations. When a query contains a GROUP BY clause and a DISTINCT keyword on the same column, the query is simplified, and the duplication is removed. Therefore, when you run the query in SQL Server 7.0, a Stream Aggregation may be used first to aggregate the data. In SQL Server 2000, a Hash Aggregation may be used first. In rare situations, the new execution plan may cause slower performance.
back to the top
RESOLUTION
Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft SQL Server 2000 service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
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 usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
back to the top
Prerequisites
To install this hotfix, you must have the following prerequisites:
- SQL Server 2000 Service Pack 3 (SP3)
For information about how to obtain SQL Server 2000 SP3, see the following article in the Microsoft Knowledge Base:290211 How to obtain the latest SQL Server 2000 service pack
- SQL Server 2000 hotfix build 2000.80.0977
For more information about SQL Server 2000 post-SP3a hotfix build 2000.80.0977, click the following article number to view the article in the Microsoft Knowledge Base:888007 You receive a "The product does not have a prerequisite update installed" error message when you try to install a SQL Server 2000 post-Service Pack 3 hotfix
Restart information
You do not have to restart the computer after you apply this hotfix.
back to the top
Registry information
You do not have to change the registry.
back to the top
Hotfix 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 tool in Control Panel.
SQL Server 2000 32-bit versions
Date Time Version Size File name -------------------------------------------------------------- 07-Jan-2005 02:11 2000.80.1000.0 664,128 Autoplt.dll 07-Jan-2005 02:10 2000.80.1000.0 78,400 Console.exe 07-Jan-2005 02:11 2000.80.1000.0 332,352 Ctasksui.dll 07-Jan-2005 02:11 2000.80.1000.0 315,968 Custtask.dll 07-Jan-2005 02:11 2000.80.1000.0 33,340 Dbmslpcn.dll 31-Dec-2004 17:31 786,432 Distmdl.ldf 31-Dec-2004 17:31 2,359,296 Distmdl.mdf 31-Dec-2004 17:31 180 Drop_repl_hotfix.sql 07-Jan-2005 02:11 2000.80.1000.0 1,905,216 Dtspkg.dll 07-Jan-2005 02:11 2000.80.1000.0 528,960 Dtspump.dll 07-Jan-2005 02:11 2000.80.1000.0 1,557,052 Dtsui.dll 07-Jan-2005 02:11 2000.80.1000.0 639,552 Dtswiz.dll 31-Dec-2004 17:31 747,927 Instdist.sql 31-Dec-2004 17:31 1,581 Inst_repl_hotfix.sql 07-Jan-2005 02:10 2000.80.1000.0 352,828 Isqlw.exe 07-Jan-2005 02:10 2000.80.1000.0 82,492 Itwiz.exe 07-Jan-2005 02:11 2000.80.1000.0 90,692 Msgprox.dll 31-Dec-2004 17:16 8.11.41022.0 226,304 Mssdi98.dll 07-Jan-2005 02:11 2000.80.1000.0 62,024 Odsole70.dll 07-Jan-2005 02:11 2000.80.1000.0 25,144 Opends60.dll 07-Jan-2005 02:10 2000.80.1000.0 57,904 Osql.exe 07-Jan-2005 02:11 2000.80.1000.0 279,104 Pfutil80.dll 31-Dec-2004 17:25 550,780 Procsyst.sql 31-Dec-2004 17:31 12,305 Qfe469315.sql 31-Dec-2004 17:31 19,195 Qfe469571.sql 31-Dec-2004 17:31 5,157 Qfe472197.sql 07-Jan-2005 02:10 2000.80.1000.0 143,940 Qrdrsvc.exe 07-Jan-2005 02:26 1,136,072 Replmerg.sql 07-Jan-2005 02:11 2000.80.1000.0 221,768 Replprov.dll 07-Jan-2005 02:11 2000.80.1000.0 307,784 Replrec.dll 07-Jan-2005 00:59 2000.80.1000.0 159,813 Replres.rll 31-Dec-2004 17:31 1,088,240 Replsys.sql 31-Dec-2004 17:31 986,603 Repltran.sql 31-Dec-2004 16:49 55 Repl_uninstall.sql 07-Jan-2005 02:11 2000.80.1000.0 287,304 Rinitcom.dll 07-Jan-2005 02:11 2000.80.1000.0 78,416 Sdiclnt.dll 07-Jan-2005 02:11 2000.80.1000.0 66,112 Semmap.dll 07-Jan-2005 02:11 2000.80.1000.0 57,916 Semnt.dll 07-Jan-2005 02:11 2000.80.1000.0 492,096 Semobj.dll 07-Jan-2005 01:19 2000.80.1000.0 172,032 Semobj.rll 07-Jan-2005 02:11 2000.80.1000.0 53,832 Snapshot.exe 31-Dec-2004 17:25 117,834 Sp3_serv_uni.sql 07-Jan-2005 02:10 2000.80.1000.0 28,672 Sqlagent.dll 07-Jan-2005 02:11 2000.80.1000.0 311,872 Sqlagent.exe 07-Jan-2005 02:10 2000.80.1000.0 168,001 Sqlakw32.dll 07-Jan-2005 02:11 2000.80.1000.0 33,344 Sqlctr80.dll 07-Jan-2005 02:11 2000.80.1000.0 4,215,360 Sqldmo.dll 07-Jan-2005 02:11 25,172 Sqldumper.exe 07-Jan-2005 00:51 2000.80.1000.0 28,672 Sqlevn70.rll 07-Jan-2005 02:11 2000.80.1000.0 156,224 Sqlmaint.exe 07-Jan-2005 02:11 2000.80.1000.0 180,792 Sqlmap70.dll 07-Jan-2005 02:11 2000.80.1000.0 188,992 Sqlmmc.dll 07-Jan-2005 01:14 2000.80.1000.0 479,232 Sqlmmc.rll 07-Jan-2005 02:11 2000.80.1000.0 401,984 Sqlqry.dll 07-Jan-2005 02:11 2000.80.1000.0 57,920 Sqlrepss.dll 07-Jan-2005 02:11 2000.80.1000.0 7,716,945 Sqlservr.exe 07-Jan-2005 02:11 2000.80.1000.0 590,396 Sqlsort.dll 07-Jan-2005 02:11 2000.80.1000.0 45,644 Sqlvdi.dll 07-Jan-2005 02:11 2000.80.1000.0 106,588 Sqsrvres.dll 07-Jan-2005 02:11 2000.80.1000.0 33,340 Ssmsgnet.dll 07-Jan-2005 02:11 2000.80.1000.0 33,340 Ssmslpcn.dll 07-Jan-2005 02:11 2000.80.1000.0 33,340 Ssmsqlgc.dll 07-Jan-2005 02:11 2000.80.1000.0 82,492 Ssnetlib.dll 07-Jan-2005 02:11 2000.80.1000.0 25,148 Ssnmpn70.dll 07-Jan-2005 02:11 2000.80.1000.0 123,456 Stardds.dll 07-Jan-2005 02:11 2000.80.1000.0 158,240 Svrnetcn.dll 07-Jan-2005 02:11 2000.80.1000.0 76,416 Svrnetcn.exe 07-Jan-2005 02:11 2000.80.1000.0 49,228 Ums.dll 07-Jan-2005 02:11 2000.80.1000.0 74,304 Xplog70.dll 07-Jan-2005 02:11 2000.80.1000.0 98,872 Xpweb70.dll
SQL Server 2000 64-bit version
Date Time Version Size File name Platform ------------------------------------------------------------------------ 07-Jan-2005 11:07 2000.80.1000.0 56,832 Dbmslpcn.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 528,960 Dtspump.dll x86 07-Jan-2005 11:07 2000.80.1000.0 185,856 Msgprox.dll IA-64 31-Dec-2004 19:10 8.11.41022.0 742,912 Mssdi98.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 151,040 Odsole70.dll IA-64 07-Jan-2005 11:08 2000.80.1000.0 27,136 Opends60.dll IA-64 07-Jan-2005 04:15 19,880 Opends60.lib 07-Jan-2005 11:07 2000.80.1000.0 148,992 Osql.exe IA-64 07-Jan-2005 11:07 2000.80.1000.0 353,280 Qrdrsvc.exe IA-64 07-Jan-2005 11:07 2000.80.1000.0 534,528 Replprov.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 769,024 Replrec.dll 07-Jan-2005 11:07 2000.80.1000.0 650,240 Rinitcom.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 160,768 Semmap.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 132,608 Semnt.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 88,576 Snapshot.exe IA-64 07-Jan-2005 11:07 2000.80.1000.0 10,240 Sqlagent.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 1,055,232 Sqlagent.exe IA-64 07-Jan-2005 11:07 2000.80.1000.0 90,112 Sqlboot.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 32,256 Sqlctr80.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 812,032 Sqldata.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 13,845,504 Sqldmo.dll IA-64 07-Jan-2005 11:07 39,936 Sqldumper.exe IA-64 07-Jan-2005 11:07 2000.80.1000.0 493,568 Sqlmaint.exe 07-Jan-2005 11:07 2000.80.1000.0 23,040 Sqlmap70.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 152,064 Sqlrepss.dll 07-Jan-2005 11:08 2000.80.1000.0 25,237,504 Sqlservr.exe 07-Jan-2005 11:07 2000.80.1000.0 616,960 Sqlsort.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 120,320 Sqlvdi.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 227,328 Sqsrvres.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 53,760 Ssmslpcn.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 59,904 Ssmsqlgc.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 256,000 Ssnetlib.dll IA-64 07-Jan-2005 11:07 2000.80.1000.0 20,992 Ssnmpn70.dll 07-Jan-2005 11:07 2000.80.1000.0 430,080 Svrnetcn.dll 07-Jan-2005 11:07 2000.80.1000.0 185,856 Svrnetcn.exe 07-Jan-2005 11:07 2000.80.1000.0 183,296 Xplog70.dll 07-Jan-2005 11:07 2000.80.1000.0 187,392 Xpweb70.dll 07-Jan-2005 11:10 5,058 Hotfix1.inf 31-Dec-2004 19:10 2000.80.962.0 57,904 Osql.exe x86 31-Dec-2004 19:10 2000.80.760.0 269,824 Sqdedev.dll IA-64 07-Jan-2005 04:29 2000.80.1000.0 146,432 Replres.rll 07-Jan-2005 04:15 2000.80.1000.0 19,968 Sqlevn70.rll
Note Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.
back to the top
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
MORE INFORMATION
This hotfix is only enabled under trace flag 9063. When trace flag 9063 is enabled, duplicate GROUP BY clauses or DISTINCT keywords will not be removed.
For more information about the naming schema for Microsoft 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, 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
Additional query words: SQL2000
Keywords: kbbug kbfix kbqfe kbhotfixserver KB892392
