analytics/informix/extend/spatial.8.22.FC2/examples/sql/st_polyfromtext.sql

-- The polygon_test table is created with a single ST_Polygon column.

CREATE TABLE polygon_test (pl1 ST_Polygon);

-- The INSERT statement inserts a polygon into
-- the polygon column using the ST_PolyFromText function.

INSERT INTO polygon_test VALUES(
    ST_PolyFromText('polygon((10.01 20.03,10.52 40.11,30.29 41.56,31.78 10.74,10.01 20.03))',1000)
);