I taught Judy Arrays in our Advanced DB course in 2020:
https://youtu.be/N6rhECUjdaI?t=3043
AFAIK nobody uses them because of the (unfounded) patent fears.
ART indexes are a modern implementation of radix trees / tries that is better.
https://youtu.be/N6rhECUjdaI?t=3043
AFAIK nobody uses them because of the (unfounded) patent fears.
ART indexes are a modern implementation of radix trees / tries that is better.
"ART index software radix tree" works (the A stands for adaptive).