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

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Signatures

ST_MMax(geom: Geometry)

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Parameters

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geom
Geometry
required
The input geometry.

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Return type

A numeric value.

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Example

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