How we made geo joins 400× faster with H3 indexes
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Geospatial joins using predicates like ST_Intersects become prohibitively slow at scale due to quadratic complexity and expensive spatial operations. By automatically rewriting these queries to use H3 hierarchical hexagonal cell indexes, spatial predicates are transformed into fast integer equi-joins on cell IDs. The approach
•7m read time• From floedb.ai
Table of contents
What’s a geo joinMeet H3From geography predicate to set-opsOn-the-fly indexingNumbersConclusionSort: