Frank Chen

Resolved by #12833

First, I want to say, this is a great proposal that lays some foundation work to introduce DDL to Druid. My question is what's the relationship between current INFORMATION_SCHEMA in...

> At that point, a small Druid cluster would be pretty simple: just a Coordinator and this new process type (or a few of them for scale-out) This is a...

Wow, DAG-based processors, it's good to hear that.

> * We don't have to keep the current request/response structure. If it helps, we can change to a protocol that allows multiplexing of multiple requests over the same connection....

CI failed on ` (openjdk11) indexing modules test (SQL Compatibility)` I think it has nothing to do with the changes in this PR.

This feature seems like a realtime query monitoring. It's an interesting topic. For administrators, sometimes it's useful to kill some long-time running queries. We usually do such operations on MySQL...

If we want to build this feature upon SQL input source, I think we need to improve it first. Current SQL input source requires either `postgres-metadata-storage` or `mysql-metadata-storage` to be...

Batch ingestion via SQL is a good and the utimate way. I don't know at the first stage if the ingestion SQL will be planned and converted into a SQL...

#12481 has been merged into the master branch. You can have a try if you're interested in it. @didip