|
Problem IC82253
|
Status: Closed |
QUERY PERFORMS POORLY WHEN NUMEROUS STRUCTURED TYPES ARE CONSTRUCTED (E.G. DB2GSE TYPES) |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
Structured type construction is using the default inline length
instead of the inline length defined for the type. The result
is unnecessary direct reads and writes. If a query constructs
numerous instances of a structured type, the poor performance
may be noticeable. For example, the following query constructs
a st_point structured type object for every row, if there are
many rows, the direct read/write costs will result in noticeably
slow execution:
select count(*), max(db2gse.st_point(longitude, latitude,
1003)..st_maxx) from locations; |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 Version 9.7 Fix Pack 7. *
**************************************************************** |
| Local Fix: |
|
| available fix packs: |
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
First fixed in DB2 Version 9.7 Fix Pack 7. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 26.03.2012
20.10.2012
20.10.2012 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP7
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.7
|
 |
