How does it compares to ClickHouse ? Isnt creating a proprietary Query Language going to be a problem for Adhoc quries? Why create yet another language when the industry is standardizing on SQL or a subset of SQL
ClickHouse scan performance is through the roof, but it also seems fairly difficult to operate compared to the alternatives. For example, the concept of "deep storage" in Druid and Pinot makes rebalancing and replication trivial (at the expense of additional storage space). ClickHouse doesn't have that and requires more babysitting. And that's without even going into something like BigQuery, which is on a completely different level regarding operational simplicity if your use cases support it.
Also, if queries are heavily filtered by arbitrary dimensions, then ClickHouse starts to lose its edge compared to fully-indexed systems.
This makes ClickHouse fairly niche IMO, despite being exceptional at what it does.