ST_MPointFromText(wkt [, srid]), ST_MultiPointFromText(wkt [, srid])

Constructs a MultiPoint value using its WKT representation and SRID.

If the geometry argument is NULL or not a syntactically well-formed
geometry, or if the SRID argument is NULL, the return value is NULL.

Functions such as ST_MPointFromText() and ST_GeomFromText() that accept
WKT-format representations of MultiPoint values permit individual
points within values to be surrounded by parentheses. For example, both
of the following function calls are valid:

ST_MPointFromText('MULTIPOINT (1 1, 2 2, 3 3)')
ST_MPointFromText('MULTIPOINT ((1 1), (2 2), (3 3))')

URL: https://dev.mysql.com/doc/refman/5.7/en/gis-wkt-functions.html

