Syntax
------

ST_PolyFromText(wkt[,srid])
ST_PolygonFromText(wkt[,srid])
PolyFromText(wkt[,srid])
PolygonFromText(wkt[,srid])

Description
-----------

Constructs a POLYGON value using its WKT representation and SRID.

ST_PolyFromText(), ST_PolygonFromText(), PolyFromText() and
ST_PolygonFromText() are all synonyms.

Examples
--------

CREATE TABLE gis_polygon   (g POLYGON);
INSERT INTO gis_polygon VALUES
  (PolygonFromText('POLYGON((10 10,20 10,20 20,10 20,10 10))')),
  (PolyFromText('POLYGON((0 0,50 0,50 50,0 50,0 0), (10 10,20 10,20 20,10
20,10 10))'));

URL: https://mariadb.com/kb/en/st_polyfromtext/