It looks very proming, congrats. I use ClickHouse in production and I'd love to see how this project evolves.
My main disappointment is the amount of aggregation functions: https://questdb.io/docs/functionsAggregation
Clickhouse provides hundreds of functions, many of which I use.
It would be hard to even consider QuestDB with this amount of functions.
I'll stay tuned, anyway.
Keep up the good work!