ST_DISJOINT(g1,g2)
Returns 1
or 0
to indicate whether geometry g1
is spatially disjoint from (does not intersect with) geometry g2
.
ST_DISJOINT() uses object shapes, while DISJOINT(), based on the original MySQL implementation, uses object bounding rectangles.
ST_DISJOINT() tests the opposite relationship to ST_INTERSECTS().
SET @g1 = ST_GEOMFROMTEXT('POINT(0 0)'); SET @g2 = ST_GEOMFROMTEXT('LINESTRING(2 0, 0 2)'); SELECT ST_DISJOINT(@g1,@g2); +----------------------+ | ST_DISJOINT(@g1,@g2) | +----------------------+ | 1 | +----------------------+ SET @g2 = ST_GEOMFROMTEXT('LINESTRING(0 0, 0 2)'); SELECT ST_DISJOINT(@g1,@g2); +----------------------+ | ST_DISJOINT(@g1,@g2) | +----------------------+ | 0 | +----------------------+
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https://mariadb.com/kb/en/st_disjoint/