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  1. MariaDB Server
  2. MDEV-2614

LP:857087 - Wrong result with ST_INTERSECTS and LINESTRINGs

        Details

        • Type: Bug
        • Status: Closed
        • Resolution: Fixed
        • Affects Version/s: None
        • Fix Version/s: None
        • Component/s: None
        • Labels:

          Description

          This query:

          SELECT ST_INTERSECTS( GeomFromText('MULTILINESTRING( ( 4030 3045 , 3149 2461 , 3004 3831 , 3775 2976 ) )') , GeomFromText('LINESTRING(3058.41 3187.91,3081.52 3153.19,3042.99 3127.57,3019.89 3162.29,3039.07 3175.05,3039.07 3175.05,3058.41 3187.91,3081.52 3153.19,3042.99 3127.57,3019.89 3162.29)') );

          returns TRUE with PostGIS and False with MariaDB. Visual examination with a GUI editor shows that intersection does indeed exist.

          The shape of the second linestring seems to be important. This linestring was taken from an actual openstreetmap , so I assume it is realistic.

          ST_INTERSECTION() also reports a non-empty intersection, so ST_INTERSECTS must be TRUE.

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                ratzpo Rasmus Johansson added a comment -

                Launchpad bug id: 857087

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                ratzpo Rasmus Johansson added a comment - Launchpad bug id: 857087

                  People

                  • Assignee:
                    holyfoot Alexey Botchkov
                    Reporter:
                    philipstoev Philip Stoev
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                    • Created:
                      Updated:
                      Resolved: