DB2 - Problem description
| Problem IC61794 | Status: Closed |
ST_PERPPOINTS RETURNS INCORRECT VALUES | |
| product: | |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 | |
| Problem description: | |
When using the ST_PerpPoints spatial function on an
ST_MultiLinestring geometry that contains multiple line
segments,
sometimes the values returned are incorrect.
The following is an example of a query that returns an incorrect
result:
values(
db2gse.ST_AsText (
db2gse.ST_PerpPoints (
db2gse.ST_MultiLineString('MULTILINESTRING (
(-94 37.8, -93 37.8),
(-94 37.7, -94 37.3)
)',1),
db2gse.ST_Point('POINT (-94.5 37.5)',1)
)
)
)
Returns:
MULTIPOINT (-94.248676 37.330745)
The correct result is:
MULTIPOINT (-94.000000 37.500000) | |
| Problem Summary: | |
****************************************************************
* USERS AFFECTED: *
* All Spatial Extender users *
****************************************************************
* PROBLEM DESCRIPTION: *
* When using the ST_PerpPoints spatial function on an *
* ST_MultiLinestring geometry that contains multiple line *
* *
* segments, *
* sometimes the values returned are incorrect. *
* *
* The following is an example of a query that returns an *
* incorrectresult: *
* *
* values( *
* db2gse.ST_AsText ( *
* db2gse.ST_PerpPoints ( *
* db2gse.ST_MultiLineString('MULTILINESTRING ( *
* (-94 37.8, -93 *
* 37.8), (-94 37.7, -94 *
* 37.3) )',1), *
* db2gse.ST_Point('POINT (-94.5 37.5)',1) *
* *
* ) *
* ) *
* ) *
* *
* Returns: *
* MULTIPOINT (-94.248676 37.330745) *
* *
* The correct result is: *
* MULTIPOINT (-94.000000 37.500000) *
****************************************************************
* RECOMMENDATION: *
* Apply V9.7 FP1 *
**************************************************************** | |
| Local Fix: | |
| available fix packs: | |
DB2 Version 9.7 Fix Pack 1 for Linux, UNIX, and Windows | |
| Solution | |
Apply V9.7 FP1 | |
| Workaround | |
not known / see Local fix | |
| Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 29.06.2009 07.10.2009 07.10.2009 |
| Problem solved at the following versions (IBM BugInfos) | |
9.7.FP1 | |
| Problem solved according to the fixlist(s) of the following version(s) | |
| 9.7.0.1 |
|