If we want to implement simple facet counting feature, it seems we can do
it via sortedset or taxonomy writer/reader.
Seems sortedset is simpler but doesn't support hierarchical facet count
such as A/B/C.
I want to know what's advantage/disadvantage of sortedset or taxonomy?
Is there any troubl
Hi
The taxonomy faceting approach maintains a sidecar index where it keeps the
taxonomy and assigns an integer (ordinal) to each category. Those integers
are encoded in a BinaryDocValues field for each document. It supports
hierarchical faceting as well as assigning additional metadata to each
fac