APAR status
Closed as program error.
Error description
The optimizer chooses a bad execution plan when a filter matches a high number of rows causing the query to run slow. The estimated number of rows is also incorrectly calculated.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * Unique columns lacking statistics * **************************************************************** * PROBLEM DESCRIPTION: * * Join selectivity was not calculated correctly when unique * * columns lack statistics. * **************************************************************** * RECOMMENDATION: * * Upgrade to 11.50xC7 when available. * ****************************************************************
Problem conclusion
Fixed in 11.50xC7.
Temporary fix
Comments
APAR Information
APAR number
IC67110
Reported component name
IBM IDS ENTRP E
Reported component ID
5724L2304
Reported release
B15
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-03-10
Closed date
2010-11-17
Last modified date
2010-11-17
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
IBM IDS ENTRP E
Fixed component ID
5724L2304
Applicable component levels
RB15 PSN
UP
RB15 PSY
UP
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Document Information
Modified date:
17 November 2010