2011

Table Of Contents

■ The following geometry types:

■ Polygons: polygon, multi-polygon, curve polygon, multi-curve polygon,

circular arc segment

■ Points: point, multi-point

■ Rings: ring, linear ring

■ Line strings: line string, line string segment, multi-line string, curve

string, multi-curve string

■ Multi-geometry

Restrictions of MySQL Schemas

When you create a MySQL schema, the following restrictions apply:

■ A

feature class (page 2063) must define or inherit at least one identity property

(page 2071).

■ Inclusive value range constraints are not supported.

■ Identity properties cannot be nullable.

■ Read-only identity properties must be auto-generated.

■ A feature class can have multiple geometric properties. It is not mandatory,

but using a main geometry as an attribute of the feature class can help

identify the geometry property to use as the default for queries and

rendering. Both HasMeasure and HasElevation are supported.

■ The maximum length of a string is 65,535 bytes.

■ For decimal properties, the precision must be from 1 through 65, inclusive,

and the scale must be from 0 through 30, inclusive.