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Checks for the presence of Z coordinate values representing measures or linear references. Returns true if the input geometry includes an Z coordinate, false otherwise. ST_HasZ

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Signatures

ST_HasZ(geom: Geometry)

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Parameters

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geom
Geometry
required
The input geometry.

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Return type

Returns true or false.

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Example

SELECT ST_HasZ(
        ST_GeomFromWKT('LINESTRING Z (30 10 5, 40 40 10, 20 40 15, 10 20 20)')
)

true