21.4.7.20 ST_ConstraintRelationship

This simple type specifies the types of constraint relationships which are present and can be used.

This simple type’s contents are a restriction of the W3C XML Schema token datatype.

This simple type is restricted to the values

listed in the following table:

Enumeration Value

Description

The constraint should reference a child node.

The layout node can map to the descendants of the data point.

The layout node maps to the current data point.

[Note: The W3C XML Schema definition of this simple type’s content model (ST_ConstraintRelationship) is located in A.5.3. end note]