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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