ST_MMax

Returns M maxima of the given geometry or null if there is no M coordinate.

Signatures

ST_MMax(geom: Geometry)

geom

Geometry

required

The input geometry.

A numeric value.

SELECT ST_MMax(
        ST_GeomFromWKT('POLYGON ZM ((30 10 5 1, 40 40 10 2, 20 40 15 3, 10 20 20 4, 30 10 5 1))')
)

4.0

⌘I