GEOMETRYN
Sintassi
GeometryN(gc,N)
Spiegazione
Restituisce la N-esima geometria nella GeometryCollection gc
. Le geometrie sono numerate a partire da 1.
SET @gc = 'GeometryCollection(Point(1 1),LineString(12 14, 9 11))'; SELECT AsText(GeometryN(GeomFromText(@gc),1)); +----------------------------------------+ | AsText(GeometryN(GeomFromText(@gc),1)) | +----------------------------------------+ | POINT(1 1) | +----------------------------------------+
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