Have you checked questdb [1]? the data structure is arrays with data that lands in order and SQL queries on top. The fallback was that it was difficult to deal

Have you checked questdb [1]? the data structure is arrays with data that lands in order and SQL queries on top. The fallback was that it was difficult to deal with out of order data, but we have just solved this by re-ordering data on the fly in memory before it hits the disk. Performance wise probably not far from kdb itself (will be sharing some bench results soon vs open source tsdbs) NB: I'm one of the co-founder of questdb [1] https://www.questdb.io https://www.questdb.io