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ad-freiburg / qlever

Very fast SPARQL Engine, which can handle very large knowledge graphs like the complete Wikidata, offers context-sensitive autocompletion for SPARQL queries, and allows combination with text search. It's faster than engines like Blazegraph or Virtuoso, especially for queries involving large result sets.
Apache License 2.0
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Make `RAND` function conform to the standard #1522

Closed hannahbast closed 1 month ago

hannahbast commented 1 month ago

So far, we used our FastRandomIntGenerator to generate values for RAND. However, the standard dictates that RAND returns an xsd:double from the range [0, 1). We now do this using our RandomDoubleGenerator. It is around six times slower than the previous generator, but still fast enough (4.8 ns / number vs. 0.8 ns / number). Fixes #1516

Also added a performance test to RandomTest to be able to check the speed of a random number generator quickly.

codecov[bot] commented 1 month ago

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 88.12%. Comparing base (f39907c) to head (03b6e21). Report is 1 commits behind head on master.

Additional details and impacted files ```diff @@ Coverage Diff @@ ## master #1522 +/- ## ======================================= Coverage 88.12% 88.12% ======================================= Files 357 357 Lines 26765 26765 Branches 3606 3606 ======================================= Hits 23586 23586 + Misses 1942 1941 -1 - Partials 1237 1238 +1 ```

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sonarcloud[bot] commented 1 month ago

Quality Gate Passed Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud