ST_GeometryFromText,ST_GeomFromText
description
Syntax
GEOMETRY ST_GeometryFromText(VARCHAR wkt)
将一个WKT（Well Known Text）转化为对应的内存的几何形式
example
mysql> SELECT ST_AsText(ST_GeometryFromText("LINESTRING (1 1, 2 2)"));
+---------------------------------------------------------+
| st_astext(st_geometryfromtext('LINESTRING (1 1, 2 2)')) |
+---------------------------------------------------------+
| LINESTRING (1 1, 2 2) |
+---------------------------------------------------------+keywords
ST_GEOMETRYFROMTEXT,ST_GEOMFROMTEXT,ST,GEOMETRYFROMTEXT,GEOMFROMTEXT