| Bug #86559 | ST_Crosses(GC, GC) returns incorrect result for corner case | ||
|---|---|---|---|
| Submitted: | 2 Jun 2017 11:56 | Modified: | 3 Oct 2017 18:51 |
| Reporter: | Norvald Ryeng | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: GIS | Severity: | S3 (Non-critical) |
| Version: | 8.0.2 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
[3 Oct 2017 18:51]
Paul DuBois
Posted by developer: Fixed in 8.0.4. ST_Crosses() could return an incorrect result when at least one parameter is a geometry collection and multiple elements of the geometry collection must be taken into account in order to determine whether the geometries cross.
Description: ST_Crosses incorrectly returns true for a corner case where both arguments are geometry collections and the first argument is covered by different elements of the second argument. How to repeat: SELECT ST_Crosses( ST_GeomFromText('GEOMETRYCOLLECTION(POINT(0 1),POINT(0 10))'), ST_GeomFromText('GEOMETRYCOLLECTION(LINESTRING(0 0, 0 2),POINT(0 10))'));