5 Conformance

DataDirect XQuery fulfills the requirements of XQuery Minimal Conformance.

Optional Features

Table A-22 describes how DataDirect XQuery supports optional XQuery features. Some optional features are compensated for relational sources; see Understanding Compensation for details.

Table A-22. XQuery Optional Features 
XQuery Language
Support
Schema import feature
Not supported.
Schema validation feature
Not supported.
Static typing feature
Supported. See Resolving Static Type Errors for more information about static typing.
Full axis feature
Supported. Compensated for relational sources.
Module feature
Supported. See Library Module URI Resolvers.
Serialization feature
Supported. See Serialization Support.
Trivial XML embedding feature
Not supported.

Data Model Conformance

DataDirect XQuery supports the data types as described in Supported XQuery Atomic Types. XML documents are mapped to the Data Model using Infoset mapping. Relational tables are mapped to the Data Model using SQL/XML mappings and PSVI mapping.