MySQL has data types that correspond to OpenGIS classes. Some of these types hold single geometry values:
GEOMETRY
POINT
LINESTRING
POLYGON
GEOMETRY
can store geometry values of any
type. The other single-value types (POINT
,
LINESTRING
, and POLYGON
)
restrict their values to a particular geometry type.
The other data types hold collections of values:
MULTIPOINT
MULTILINESTRING
MULTIPOLYGON
GEOMETRYCOLLECTION
GEOMETRYCOLLECTION
can store a collection of
objects of any type. The other collection types
(MULTIPOINT
,
MULTILINESTRING
,
MULTIPOLYGON
, and
GEOMETRYCOLLECTION
) restrict collection
members to those having a particular geometry type.
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