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Computes and returns discrete Frechet Distance between the given two geometries, based on Computing Discrete Frechet Distance If any of the geometries is empty, returns 0.0 ST_FrechetDistance

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Signatures

ST_FrechetDistance(g1: Geometry, g2: Geometry)

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Parameters

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g1
Geometry
required
The g1 value.
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g2
Geometry
required
The g2 value.

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Return type

A numeric value.

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Example

SELECT ST_FrechetDistance(ST_GeomFromWKT('POINT (0 1)'), ST_GeomFromWKT('LINESTRING (0 0, 1 0, 2 0, 3 0, 4 0, 5 0)'))

5.0990195135927845