A fix is available
APAR status
Closed as program error.
Error description
Tuning SQL statement can be very slow if it starts with a multi-line comment and is not explainable. For example, the following statement reproduces this issue: /* IBM_DSM */ EXPLAIN ALL SET QUERYNO = 1234 FOR SELECT * FROM SYSIBM.SYSTABLES WHERE NAME = 'SYSTABLES';
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: Users of IBM Db2 Query Monitor z/OS. * **************************************************************** * PROBLEM DESCRIPTION: Tuning SQL statement can be very slow * * if it starts with a multi-line comment * * and is not explainable. For example, * * the following statement reproduces * * this issue: * * * * (* IBM_DSM *) EXPLAIN ALL SET * * QUERYNO = 1234 FOR SELECT * FROM * * SYSIBM.SYSTABLES WHERE NAME = * * 'SYSTABLES'; * **************************************************************** * RECOMMENDATION: APPLY the PTF. * **************************************************************** Code has been changed to correct this condition.
Problem conclusion
APPLY the PTF.
Temporary fix
Comments
APAR Information
APAR number
PI98799
Reported component name
DB2 QUERY MONIT
Reported component ID
5655E6701
Reported release
330
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-06-05
Closed date
2019-01-24
Last modified date
2019-02-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PH07669 UI60920
Modules/Macros
CQMBLOB CQMCAE CQMCAPI CQMICRT CQMJAR CQMMGRT CQMPTFRM CQMSSV CQMSWD CQMUPXCF
Fix information
Fixed component name
DB2 QUERY MONIT
Fixed component ID
5655E6701
Applicable component levels
R330 PSY UI60920
UP19/01/29 P F901
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
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Document Information
Modified date:
05 November 2021