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MDEV-7514 GIS: PointOnSurface returns NULL instead of the point.

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Need to take into account cases of a polygon shaped as a very thin line.
This commit is contained in:
Alexey Botchkov 2015-03-15 11:17:50 +04:00
commit ca30418837
3 changed files with 12 additions and 1 deletions
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6
mysql-test/r/gis.result
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@ -1774,3 +1774,9 @@ ST_IsRing(ST_LineFromText('LINESTRING(0 0,0 10,10 10,0 0)'))
select ST_IsRing(ST_LineFromText('LINESTRING(0 0,0 10,10 10,-10 -10, 0 -10, 0 0)'));
ST_IsRing(ST_LineFromText('LINESTRING(0 0,0 10,10 10,-10 -10, 0 -10, 0 0)'))
0
#
# MDEV-7514 GIS: PointOnSurface returns NULL instead of the point.
#
SELECT ST_GEOMETRYTYPE(ST_PointOnSurface(ST_PolyFromText('POLYGON((-70.916 42.1002,-70.9468 42.0946,-70.9754 42.0875,-70.9749 42.0879,-70.9759 42.0897,-70.916 42.1002))')));
ST_GEOMETRYTYPE(ST_PointOnSurface(ST_PolyFromText('POLYGON((-70.916 42.1002,-70.9468 42.0946,-70.9754 42.0875,-70.9749 42.0879,-70.9759 42.0897,-70.916 42.1002))')))
POINT