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Merge parsers
- DeTrusty uses only one parser now, hence,
- Deprecate sparql_one_dot_one parameter of run_query()
Add support for parsing SPARQL queries with comments
Fix issue with COUNT(*)

Add complex expressions
Update return format to match with the SPARQL specification, i.e., include type and datatype, not just the value
Fix minor issues in aggregate functions
Fix implicit grouping
Fix error of executing a query with no matched source if only rdf:type statement in query
Fix issue with non-grouped optional variables
Fix filters
- ... for URIs
- ... over optional variables
Fix wrong splitting of VALUES clause when using multiple variables
Throw error if
- projected variables are not grouped or aggregates
- projected variables are not defined in the body
- variables in ORDER BY are not projected
- variables in GROUP BY are not defined in the body
Add functionality for ordering by multiple variables
Adjust Xorderby to use datatypes

Releases: SDM-TIB/DeTrusty