Secondary Index

Question

Secondary key over key is dense and secondary key over non key is sparse

is it correct ?

i think it should be

Secondary key over non key is dense and secondary key over key is sparse

Comments

@akshayaK

https://www.youtube.com/watch?v=Ua08uVgsk4k

this will help

---

tx for sharing

---

bro secondary index on primary key can never fail

THis is wrong reference

primary key can do anything.

how can he say it will fail?

Answer 1

Secondary index over key build based on unordered field so that it must be dense index,

but secondary index over non key is mostly sparse index.