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Rasqal RDF Query Library - News
2010-12-04 Rasqal Version 0.9.21 Released Updated to handle aggregate expression execution as defined by the SPARQL 1.1 Query W3C working draft of 14 October 2010 Executes grouping of results: GROUP BY Executes aggregate expressions: AVG, COUNT, GROUP_CONCAT, MAX, MIN, SAMPLE, SUM Executes filtering of aggregate expressions: HAVING Parses new syntax: BINDINGS, isNUMERIC(), MINUS, sub SELECT and SERVICE. The syntax format for parsing data graphs at URIs can be explictly declared. The roqet utility can execute queries over SPARQL HTTP Protocol and operate over data from stdin. Added several new APIs Fixed Issue: #0000388 2010-08-22 Rasqal Version 0.9.20 Released Updated to handle more of the new syntax defined by the SPARQL 1.1 Query and SPARQL 1.1 Update W3C working drafts of 1 June 2010 Added execution support for new SPARQL 1.1 query built-in expressions IF, URI, STRLANG, STRDT, BNODE, IN and NOT IN. Added an 'html' query result table format from patch by Nicholas J Humfrey Added API support for group by HAVING expressions Added XSD Date comparison support Support building with Raptor V2 API if configured with --with-raptor2. Many other bug fixes and improvements were made. Fixed Issues: #0000352, #0000353, #0000354, #0000360, #0000374, #0000377 and #0000378 See the Rasqal 0.9.20 Release Notes for the full details of the changes. 2010-02-15 Rasqal Version 0.9.19 Released The only change to this release is to fix the pkg-config rasqal.pc file to to restore the dependency on raptor which was accidently deleted. Lesson learnt: do not commit code after midnight local time. 2010-02-14 Rasqal Version 0.9.18 Released Add initial draft parsing and API (NOT execution) support for SPARQL 1.1 Update W3C Working Draft of 2010-01-26. Add public APIs (row, results, result formatter, variables table) so that query results can be built, read and written without a query. Add API resilience checks for invalid NULL pointer arguments. Many other bug fixes and improvements were made. Fixed Issues: #0000320, #0000323 #0000343, #0000345 and #0000347 See the Rasqal 0.9.18 Release Notes for the full details of the changes. 2009-12-16 Rasqal Version 0.9.17 Released WARNING: ABI AND API CHANGED in this release. Rasqal 0.9.17 is binary incompatible with 0.9.16 or earlier. Added a new query engine that implements the SPARQL algebra better All constructors now take a rasqal_world argument Added LAQRS syntax support for SUM, AVG, MIN, MAX, COALESCE() experimental syntax Added query result formatters for CSV, TSV and ASCII tables Prefer pkg-config for configuring Many resilience and resource failure fixes by Lauri Aalto Many other bug fixes and improvements were made Fixed Issues: #0000077, #0000128, #0000168, #0000258, #0000261, #0000271, #0000279 and #0000305 See the Rasqal 0.9.17 Release Notes for the full details of the changes. 2008-07-05 Rasqal Version 0.9.16 Released WARNING: ABI AND API CHANGED in this release. Rasqal 0.9.16 is incompatible with 0.9.15 or earlier. Added a rasqal_world object used for all constructor functions Removed deprecated functions and macros Fixed some memory leaks and made some low-memory resiliance fixes Query result sets can be read/written from sparql XML results format Improved error syntax error reporting See the Rasqal 0.9.16 Release Notes for the full details of the changes. 2007-11-17 Rasqal Version 0.9.15 Released Many updates for supporting W3C SPARQL Proposed Recommendation. Passes over 92% of the DAWG SPARQL Test Suite. Many query engine improvements. Substantial improvements to datatypes support and evaluation. Many improvements and fixes for use in low-memory situations Several new APIs were added including a new XSD decimal class Fixed issues: #0000190, #0000191, #0000193, #0000196, #0000197, #0000198, #0000199, #0000200, #0000201, #0000203, #0000204, #0000219, #0000220, #0000221, #0000225, #0000234, #0000235 and #0000236 WARNING: ABI AND API CHANGE in Rasqal 0.9.16 which will be incompatible with 0.9.15. See the Rasqal 0.9.15 Release Notes for the full details of the changes. 2007-04-22 Rasqal Version 0.9.14 Released Added syntax and API support but no query engine support for an experimental extension to SPARQL: LAQRS: LAQRS Adds to Querying RDF in SPARQL Updated the query results formatter to allow better introspection of formats Updated SPARQL parser for SPARQL Working Draft 2007-03-26 additions. Fixed issues: #0000152, #0000156, #0000160, #0000167 and #0000182 See the Rasqal 0.9.14 Release Notes for the full details of the changes. 2006-10-30 Rasqal Version 0.9.13 Released Added a new rasqal_query_results_formatter class Query engine now implements SPARQL GRAPH Added query features system to set parameters Many internal query engine changes (code reorganisation) Many bug fixes addressing Issues #0000080, #0000094, #0000095, #0000098, #0000100, #0000111, #0000113, #0000118, #0000129, #0000131 and #0000133. See the 0.9.13 Release Notes for the full details of the changes. 2006-04-30 Rasqal Version 0.9.12 Released Added JSON output based on the Serializing SPARQL Query Results in JSON draft Added query writer so you can use rasqal to turn RDQL into SPARQL Updated to SPARQL Query Language for RDF W3C Candidate Rec, 6 April 2006 now accepting all SPARQL syntax Requires raptor 1.4.9 or newer. Win32 build fixes (John Barstow) Many internal code re-organisations See the 0.9.12 Release Notes for the full details of the changes. 2006-01-15 Rasqal Version 0.9.11 Released Updated to SPARQL Query Language for RDF W3C Working Draft, 23 November 2005 making several additions and changes to the syntax and functionality. Using ordering, distinct and limit with query results now works Created an enhanced API reference manual with gtk-doc Requires Raptor 1.4.8 Many updates to the literal and expression handling Major internal source code re-organisation Many other changes, fixes and improvements. See the 0.9.11 Release Notes for the full details of the changes. 2005-06-09 Rasqal Version 0.9.10 Released The query engine now supports sorting query results implementing SPARQL ORDER BY (NOTE: duplicate query results are not yet removed) SPARQL query language support updated for some recent changes See the 0.9.10 Release Notes for the full details of the changes. 2005-05-19 Rasqal Version 0.9.9 Released Updated to SPARQL Query Language for RDF, W3C Working Draft, 19 April 2005 making widespread changes the syntax. Query API extensively added to access more query structure Query engine updated including query results limit and offsets Updated to the revised SPARQL Query Results XML Format (not yet published) Many other bug fixes and improvements See the 0.9.9 Release Notes for the full details of the changes. 2005-04-10 Rasqal Version 0.9.8 Released Updated to SPARQL Query Language for RDF W3C Working Draft of 17 February 2005 Added casting to the engine and in SPARQL Restructured query engine to be based on a tree of graph patterns Constraints now work per-graph pattern Added a Data Graph API Query engine uses and binds graph names in queries (SPARQL LOAD, FROM and GRAPH) Expanded the Graph Pattern API See the 0.9.8 Release Notes for the full details of the changes. 2005-02-27 Rasqal Version 0.9.7 Released Fix a resource cleanup problem when query results were not fully read Fixed some crashes in expression evaluation with invalid types Added a graph pattern API to provide full access to the query structures Added query methods to return just bound or all variables Some updates for syntax changes of SPARQL Query Language for RDF W3C Working Draft of 17 February 2005 Portability fixes for win32 (Dave Viner) See the 0.9.7 Release Notes for the full details of the changes. 2005-02-06 Rasqal Version 0.9.6 Released Added support and API calls for new query result forms graph and boolean Added SPARQL CONSTRUCT, ASK result forms Added 7 new SPARQL built-in functions Allow UTF-8 and Unicode in prefixes and QNames in queries Several other changes and bug fixes. See the 0.9.6 Release Notes for the full details of the changes. 2005-01-16 Rasqal Version 0.9.5 Released Query engine refactored to execute over graph patterns Added support for SPARQL optionals Added formatting of query results according to the SPARQL Variable Binding Results XML Format, W3C Working Draft, 21 December 2004 Updated SPARQL to handle syntax changes Many other improvements and fixes See the 0.9.5 Release Notes for the full details of the changes. 2004-10-29 Rasqal Version 0.9.4 Released Fixed several crashes during query execution Fixed some memory leaks when a query failed Pass on internal raptor errors to rasqal users. See the 0.9.4 Release Notes for the full details of the changes. 2004-10-25 Rasqal Version 0.9.3 Released License changed to LGPL 2.1/Apache 2 Added initial support for the W3C SPARQL Query Language for RDF, 2004-10-12 working draft Queries can now be executed multiple times Portability fixes for building on win32 (Chris Pointon) Various roqet utility improvements See the 0.9.3 Release Notes for the full details of the changes. 2004-08-03 Rasqal Version 0.9.2 Released Fix casts for C++ Add win32 skeleton header file Fix a memory leak when using redland inside rasqal See the 0.9.2 Release Notes for the full details of the changes. 2004-06-13 Rasqal Version 0.9.1 Released Added a query results class separate from the query class and moved all the results methods to the new class. Made portability fixes for the generated RDQL lexer files See the 0.9.1 Release Notes for the full details of the changes. 2004-05-15 Rasqal Version 0.9.0 Released First public release. 2003-08-12 Rasqal Version 0.1.0 Released Initial web site created. Nothing actually released. __________________________________________________________________ Copyright (C) 2003-2010 Dave Beckett Copyright (C) 2003-2005 University of Bristol |