If I have some query, such as:
select **resultRN** from bucket where **conditionCN**;
resultN mention (keyR1,keyR2,…,keyRn)
conditionCN mention (keyC1,keyC2,…,keyCn)
how should I create index? create idex using where conditionCN is the best way?
should I create index on keys for every condition?
what the best practice on balance create index(fast query) and minimize store?