APAR status
Closed as program error.
Error description
When AUTO_STAT_MODE is enabled in the onconfig the system catalog table sysindices may not be filled with the statistics for an index after an UPDATE STATISTICS LOW. Only the nrows column will then have the value current at the time of the update statistics run, other columns like levels, leaves, nunique and cluster will not have any values. This can happen when the index is created in disabled mode like "CREATE INDEX index_name ON TABLE table_name(column) DISABLED" and the UPDATE STATISTICS LOW is run while it still is disabled. When you enable the index with "SET INDEXES FOR TABLE table_name ENABLED" and do an UPDATE STATISTICS LOW an active AUTO_STAT_MODE can prevent the statistics from being updated when not sufficiently many changes on the table did happen after the last UPDATE STATISTICS LOW (depending on the STATCHANGE setting in the configuration). Missing statistical information can lead to inappropriate query plans and hence to intolerable query run times. When you add the FORCE option to your UPDATE STATISTICS LOW run at a time when the indexes are enabled it will ensure the statistics to be gathered and written to sysindices, regardless of the AUTO_STAT_MODE and STATCHANGE settings.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * All users * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Update to IBM Informix Server 12.10.xC6 * ****************************************************************
Problem conclusion
Problem Fixed In IBM Informix Server 12.10.xC6
Temporary fix
Comments
APAR Information
APAR number
IT07079
Reported component name
INFORMIX SERVER
Reported component ID
5725A3900
Reported release
C10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2015-02-10
Closed date
2016-01-19
Last modified date
2016-01-19
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
INFORMIX SERVER
Fixed component ID
5725A3900
Applicable component levels
RA10 PSN
UP
RA10 PSY
UP
RB10 PSN
UP
RB10 PSY
UP
RB50 PSN
UP
RB50 PSY
UP
RB70 PSN
UP
RB70 PSY
UP
RC10 PSN
UP
RC10 PSY
UP
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Document Information
Modified date:
19 January 2016