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

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Signatures

ST_ZMax(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_ZMax(ST_GeomFromText('POLYGON((0 0 1, 1 1 1, 1 2 1, 1 1 1, 0 0 1))'))

1.0