Informix - Problem description
Problem IT35860 | Status: Closed |
forest of trees index becomes degraded following an in-place alter against columns which are not part of the index | |
product: | |
INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10 | |
Problem description: | |
If an in-place alter is performed on a table which does not affect the columns of a forest of trees (FOT) index it would be expected that the index is unchanged. However the index partition key descriptor will be modified in a manner such that it is regarded as a regular index and not a FOT type. For unique indexes this may allow rows with duplicate key values to be inserted. Furthermore queries making use of this index may not return all of the correct rows. The oncheck -cI command may only report an error when duplicate values exist in a unique index. | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * Users of Informix Server prior to 12.10.xC14 and 14.10.xC4. * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to Informix Server 12.10.xC14 or 14.10.xC4. * **************************************************************** Drop and recreate the FOT index. This action is required following update to a version with a fix for this APAR. | |
Local Fix: | |
Drop and recreate the FOT index. This action shall also be required following update to a version of Informix with a fix for this APAR. | |
Solution | |
Workaround | |
**************************************************************** * USERS AFFECTED: * * Users of Informix Server prior to 12.10.xC14 and 14.10.xC4. * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to Informix Server 12.10.xC14 or 14.10.xC4. * **************************************************************** Drop and recreate the FOT index. This action is required following update to a version with a fix for this APAR. | |
Comment | |
Fixed in Informix Server 12.10.xC14 and 14.10.xC4. | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 10.02.2021 12.02.2021 12.02.2021 |
Problem solved at the following versions (IBM BugInfos) | |
Problem solved according to the fixlist(s) of the following version(s) |