[postgis-devel] ST_Intersection(line,line) error

Rémi Cura remi.cura at gmail.com
Tue Dec 3 03:22:04 PST 2013

Hey list,

ST_Intersection(line,line) seems to be faulty in the above case:
It should return a line , but strangely enough it returns multipoints with
the correct points of the line it should return.

I guess I should be happy to have an answer at all.
Any thought?

SELECT row_number() over() as id,  ST_AsText(ST_Intersection(l1,l2)),
ST_Intersection(l1,l2) AS  the_intersection, l1,l2
            FROM ST_GeomFromtext(' LINESTRING(1602.31065385555
21488.8919364873,1601.3 21494.4,1598.5 21510.2)') AS l1,
            ST_GeomFromText('LINESTRING(1605.3 21472.6,1601.3
21494.4,1601.21138045673 21494.9000674227)') AS l2
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