ST_INTERSECTS() reports FALSE for touching objects in maria-5.3-gis

Bug #801470 reported by Philip Stoev on 2011-06-24
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
MariaDB
Fix Released
Undecided
Alexey Botchkov

Bug Description

If two objects are touching, ST_INTERSECTS() reports false and ST_INTERSECTION() reports an empty value.

By contrast, the postgis documentation says:

Overlaps, Touches, Within all imply spatial intersection. If any of the aforementioned returns true, then the geometries also spatially intersect.

In postgis, ST_INTERSECTS() will return TRUE and ST_INTERSECTION() will return a POINT

examples:

SELECT ST_CONTAINS( GeometryFromText(' POLYGON(( 1 1 , 1 9 , 9 1 , 9 9 , 1 1 )) ') , PointFromText(' POINT(1 1)' ) ) ;

SELECT ST_INTERSECTS( GeometryFromText(' LINESTRING( 3 3 , 3 0 ) ') , PointFromText(' POINT(3 0)' ) ) ;

Changed in maria:
milestone: none → 5.3
assignee: nobody → Alexey Botchkov (holyfoot)
Changed in maria:
milestone: 5.3 → none
Changed in maria:
status: New → Fix Committed
Changed in maria:
status: Fix Committed → Fix Released
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