build1 publisher
Three lines of trig let a DynamoDB vector index rank shops by great-circle distance
A dev.to test stores each shop's position as a unit-sphere triple and gets ordering that matches haversine to about half a metre across seven places, while the geohash index it was compared against missed the nearest shop.
Publishers:dev.to
Reality
- Evidence62
- Adoption
- Insufficient
- Hype gap−10
- Incentives45
- Confidence55