SPARQL Update Part 1: Located Triples

[Qup42]

This is the first PR in a series of PRs that will implement SPARQL UPDATE for QLever.

It implements LocatedTriples. These are triples that know to which block in a given permutation they belong to and whether they are to be inserted or deleted. They come with the functionality to find the corresponding blocks for a set of triples (to turn them into LocatedTriples as well as the functionality to merge a block from a permutation with all the LocatedTriples that belong to this block. The latter function is the core functionality to incorporate the results of an UPDATE into subsequent queries.

[Qup42]

This PR will run somewhat parallel to #1351. To keep it in sync I will cherry-pick the changes made here back to it.

[codecov]

Codecov Report

Attention: Patch coverage is 95.92760% with 9 lines in your changes missing coverage. Please review.

Project coverage is 89.22%. Comparing base (14d6e1c) to head (3d6663f).
Report is 2 commits behind head on master.

Files	Patch %	Lines
src/index/LocatedTriples.cpp	94.51%	0 Missing and 9 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1379      +/-   ##
==========================================
+ Coverage   89.06%   89.22%   +0.16%     
==========================================
  Files         328      335       +7     
  Lines       29294    29722     +428     
  Branches     3262     3313      +51     
==========================================
+ Hits        26090    26519     +429     
+ Misses       2054     2045       -9     
- Partials     1150     1158       +8     

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[joka921]

Some preliminary comments, haven't looked at everything yet.

[joka921]

some more comments.

[joka921]

Some additional suggestions and discussions.

[Qup42]

@joka921 whats the usual procedure for the coverage of debugging <<s? Write a test only to satisfy or even include a simple testcase?

[Qup42]

@joka921 I investigated the build failure on MacOS. The <=> was only implemented for array in libc++ in May 2023 ¹. I would expect it to available from LLVM 17 (September 2023 ²) on, but we're currently building against LLVM 16.

Footnotes

1. https://reviews.llvm.org/D132265 ↩

2. https://releases.llvm.org/ ↩

[joka921]

I still have some questions, but those can be easily addressed.

[joka921]

I have one remaining question/suggestion.

[joka921]

A little tiny request left:)

[sonarcloud]

Quality Gate passed

Issues
0 New issues
2 Accepted issues

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

See analysis details on SonarCloud