ST_Polygon(LONG VARCHAR[, INT]) constructor

NEW ST_Polygon(text-representation[, srid])

Name	Type	Description
text-representation	LONG VARCHAR	A string containing the text representation of a polygon. The input can be in any supported text input format, including Well Known Text (WKT) or Extended Well Known Text (EWKT).
srid	INT	The SRID of the result. If not specified, the default is 0.

Constructs a polygon from a character string representation. The database server determines the input format by inspecting the provided string.

The following returns Polygon ((-5 -5, 5 -5, 0 5, -5 -5), (-2 -2, -2 0, 2 0, 2 -2, -2 -2)).

SELECT NEW ST_Polygon('Polygon ((-5 -5, 5 -5, 0 5, -5 -5), (-2 -2, -2 0, 2 0, 2 -2, -2 -2))')