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Problem IT06181
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Status: Closed |
THE OPTIMIZER CHOOSES A NON-OPTIMAL TABLESCAN TO SCAN A TABLE THAT IS BOTH PARTITIONED BY RANGE AND MDC. |
| product: |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 |
| Problem description: |
The optimizer chooses a non-optimal tablescan to scan a table
that is both partitioned by range and mdc.
The following prerequisite has to be met to hit this defect,
- the query benefits from partition elimination
- the table has a large number of overflow records
- there is a better performing index access alternative
The workaround is running REORG against the table. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* See SYSROUTE APARs to see where this APAR is addressed *
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| Local Fix: |
|
| Solution |
|
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 19.12.2014
09.05.2017
09.05.2017 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 10.5.0.7
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