A Point:

POINT(15 20)

Note that point coordinates are specified with no separating comma. This differs from the syntax for the SQL POINT() function, which requires a comma between the coordinates. Take care to use the syntax appropriate to the context of a given spatial operation. For example, the following statements both extract the X-coordinate from a Point object. The first produces the object directly using the POINT() function. The second uses a WKT representation converted to a Point with GeomFromText().

mysql> SELECT X(POINT(15, 20));
+------------------+
| X(POINT(15, 20)) |
+------------------+
|               15 |
+------------------+

mysql> SELECT X(GeomFromText('POINT(15 20)'));
+---------------------------------+
| X(GeomFromText('POINT(15 20)')) |
+---------------------------------+
|                              15 |
+---------------------------------+

A LineString with four points:

LINESTRING(0 0, 10 10, 20 25, 50 60)

Note that point coordinate pairs are separated by commas.

A Polygon with one exterior ring and one interior ring:

POLYGON((0 0,10 0,10 10,0 10,0 0),(5 5,7 5,7 7,5 7, 5 5))

A MultiPoint with three Point values:

MULTIPOINT(0 0, 20 20, 60 60)

A MultiLineString with two LineString values:

MULTILINESTRING((10 10, 20 20), (15 15, 30 15))

A MultiPolygon with two Polygon values:

MULTIPOLYGON(((0 0,10 0,10 10,0 10,0 0)),((5 5,7 5,7 7,5 7, 5 5)))

A GeometryCollection consisting of two Point values and one LineString:

GEOMETRYCOLLECTION(POINT(10 10), POINT(30 30), LINESTRING(15 15, 20 20))