ST_GeometryFromText — 从知名文字表示法(WKT)返回指定的ST_Geometry值。这是ST_GeomFromText的别名
geometry ST_GeometryFromText(
text WKT)
;
geometry ST_GeometryFromText(
text WKT, integer srid)
;
This method implements the OGC Simple Features
Implementation Specification for SQL 1.1.
This method implements the SQL/MM specification. SQL-MM 3:5.1.40