[JENA-625] Data Tables for SPARQL

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Done
• Fix Version/s: Jena 2.12.0
• Labels: gsoc gsoc2014 java linked_data mentor rdf sparql
• Assignee: Ying Jiang
• Reporter: Andy Seaborne
• Created: 22/Jan/14 14:55
• Updated: 01/Feb/15 19:28
• Resolved: 01/Feb/15 19:28

Description

Temporary tables are used for keeping intermediate results available for reuse with the same query or update, or use by a subsequent query.

This project will provide temporary tables for one or both of these use cases:

1. implicit use of temporary tables for precomputed parts of basic graph patterns
2. explicit use of named temporary tables (e.g. "FROM TABLE ...")

This project requires problem definition, solution design as well as implementation. Both use cases require modification of the SPARQL query engine.