Hello everybody is there a way to create an aggregator and r

Question

Hello everybody is there a way to create an aggregator and return more than one column as result I have many aggregators to implements and most of them have similar implementations so i thought to share their logic inside ONE aggregator something like <https www elastic co guide en elasticsearch reference current search aggregations metrics stats aggregation html>

Kishore G · Answer

Yes Its similar to what you did for other aggregation function

Damiano · Answer

< Kishore G> no wait i missed that part i know that ONE aggregator can only returns one value only no

Damiano · Answer

I mean creating one aggregator like stats can i return min max avg etc values instead of using min amount max amount avg amount and so on

Kishore G · Answer

you can return whatever you want from the extractFinalResult

Kishore G · Answer

we call toString on that

Kishore G · Answer

so you can return a json

Damiano · Answer

omg really we were talking about serializing a list etc do you remember i did not think it was so simple

Damiano · Answer

that s sounds PERFECT because i will avoid sorting the block again and again for each aggregator

Damiano · Answer

< Kishore G> if i return a json what about the name of the columns

Damiano · Answer

can i call they something like avg column max column min column

Damiano · Answer

something like that

Kishore G · Answer

its upto you

Kishore G · Answer

high level name will be stats

Damiano · Answer

Ok if the high level is stats and i return a json like a 1 b 2 does it mean that i can reach a doing stats a

Kishore G · Answer

yep

Kishore G · Answer

pinot will just return the json

Kishore G · Answer

you need to parse it further

Damiano · Answer

that s awesome you know smile

Kishore G · Answer

+1

Damiano · Answer

thats another good info to put on doc i will do it as i told you +1