ST_NUMPOINTS
Syntax
ST_NumPoints(ls) NumPoints(ls)
Description
Returns the number of Point objects in the LineString
value ls.
ST_NumPoints() and NumPoints() are synonyms.
Examples
SET @ls = 'LineString(1 1,2 2,3 3)'; SELECT NumPoints(GeomFromText(@ls)); +------------------------------+ | NumPoints(GeomFromText(@ls)) | +------------------------------+ | 3 | +------------------------------+
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