storing json in a columnar format

[LiranBri]

when storing a json, it would be beneficial to store it in a columnar format so each indexed field is treated like a column in a regular table. then Pinot can possibly be able to also use different kinds of indexes on the values and not just inverted index, as well as other benefits of storing in columnar format (compression, etc)

[xiangfu0]

Pinot data are stored in columnar format and have multiple index supports. Please see: https://docs.pinot.apache.org/basics/indexing

[LiranBri]

actually @kishoreg asked me to open this issue so he can document and explain the work in progress for this issue