|
Problem IC64986
|
Status: Closed |
GENERATING AN EXPLAIN OF A QUERY MIGHT RETURN EXP0021W IN SPATIAL ENABLED ENVIRONMENT. |
| product: |
DB2 FOR LUW / DB2FORLUW / 950 - DB2 |
| Problem description: |
Generating an EXPLAIN of a query might return the following
warning messages in spatial enabled environment.
EXP0021W Table column has no statistics. The column <column
name of spatial coumn> of table
"<schema> "."<table name>" has not had runstats run on it.
This can lead to poor cardinality and predicate filtering
estimates.
This is due to DB2 doesn't collect the statistics for the
spatial extender column. DB2 optimizer should block above
warning message for spatial extender column |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* Same as Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 Version 9.5 Fix Pack 8. *
**************************************************************** |
| Local Fix: |
|
| available fix packs: |
DB2 Version 9.5 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
First fixed in DB2 Version 9.5 Fix Pack 8. |
| Workaround |
N/A |
| Comment |
N/A |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC67617 IC75689
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 04.12.2009
30.06.2011
30.06.2011 |
| Problem solved at the following versions (IBM BugInfos) |
9.5.FP8
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.5.0.8
|
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