Issues

Add support for aggregate functions (COUNT, SUM, etc)

AQL query processor should ignore data with lifecycle_state = incomplete.

Improve introductory text

Add support for proper terminology access to AQL

Clarify TIMEWINDOW semantics

Clarify major keyword documentation and semantics; remove TIMEWINDOW.

Clarify use of terminology 'identified path'

Add support for descendant paths

Support for LIKE operator

Add support for LIMIT and OFFSET

Add clarifications and fix typographical errors

Correct typographical errors

Describe how AQL works with openEHR demographic data

Improve terminology support

Add namespaces to AQL

Add function support to AQL

Add description of cartesian product problem.

Cull non-implemented elements from AQL

Add support for NOT CONTAINS

Publish original AQL wiki page as formal specification.

AQL functions for state of INSTRUCTION and ACTIVITY

Improve documentation of 'matches' operator

Support constants in SELECT

Clarify the return structure of an AQL query