Is it possible to set different query granularities in the same datasource?

Yes. In most Druid versions you can submit a reindexing job. Starting with Druid 0.22, it can also be done in a compaction job. Here’s some context.

Hey @Mark_Herrera does this mean that I could have some data rolled up by say DAY and some rolled up by MONTH in the same datasource? I’ve heard of a similar “reducing granularity” model in timeseries databases.