|
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) |
