ST_AsText
ST_AsText returns the well-known text (WKT) representation of an input geometry.
Syntax
ST_AsText(geo)
Arguments
geo- A value of data type GEOMETRY, or an expression that evaluates to a GEOMETRY.
Return type
STRING
If geo is null, then null is returned.
If the input parameter is not a Geometry, then a BadRequestException is returned.
If the result is larger than a 64-KB STRING, then an error is returned.
Examples
RETURN ST_AsText(ST_GeomFromText('POLYGON((0 0,0 1,1 1,1 0,0 0))')) POLYGON((0 0,0 1,1 1,1 0,0 0))
