Name
ST_MSize — Returns the M size of a geometry.
Synopsis
float ST_MSize(geometry geom);
Description
Returns the M size of a geometry, computed as ST_MMax(geom) - ST_MMin(geom), or null if the geometry lacks M values.
This function supports 3d and will not drop the z-index.
This method supports Circular Strings and Curves.
Availability: 3.7.0
Examples
SELECT ST_MSize('LINESTRING M (1 2 3, 4 6 8)');
st_msize
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5