Spatial join bounding box #1546

Jonathan24680 · 2024-10-11T00:17:53Z

This pull request adds an efficient algorithm for the SpatialJoin Class, which handles queries like this:

SELECT * WHERE {
?a .
?b .
?a max-distance-in-meters:100 ?b
}

until now, the algorithm compared all pairs, which needed quadratic time. The pull request adds an improved algorithm, which uses bounding boxes, to eliminate many candidates without the need to check them separately.

codecov · 2024-10-11T00:48:32Z

Codecov Report

Attention: Patch coverage is 89.09091% with 24 lines in your changes missing coverage. Please review.

Project coverage is 88.96%. Comparing base (2b4e6b3) to head (e9ed3e4).
Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
src/engine/SpatialJoinAlgorithms.cpp	88.94%	15 Missing and 7 partials ⚠️
src/engine/SpatialJoin.cpp	81.81%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1546      +/-   ##
==========================================
+ Coverage   88.93%   88.96%   +0.02%     
==========================================
  Files         364      367       +3     
  Lines       33127    33470     +343     
  Branches     3715     3769      +54     
==========================================
+ Hits        29462    29777     +315     
- Misses       2433     2456      +23     
- Partials     1232     1237       +5

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