hello team.

quick question about distinctCountHLL https://docs.pinot.apache.org/configuration-reference/functions/distinctcounthll DISTINCTCOUNTHLL(colName, log2m)

if pinot users want to leverage the log2m parameter during query, do we need to emit the HLL object with given precision at ingestion time? Will it work if no changes on the ingestion side?

The

log2m

arg here is for intermediate HLL’s created. It will use whatever precision the input has.

got it. thank you @Mayank