ClickHouse: An open-source column-oriented database management system
People who've used Clickhouse or other OLAP databases in production & at scale, how do you "interconnect" it with relational data?I'm currently experimenting with Clickhouse, because my dataflow is increasing in size (40M rows right now, doubling every month or so) and my current setup (MongoDB) is at its limits. I would like to migrate the 40M rows to CH, but I also need the metadata for the rows to be in something more robust like Postgres or Mongo. Would you have a microservice that does the queries between the OLAP and relational DBs and does the join manually, exposing that as some low-level API? Or is using the various FDW options (remote tables in Clickhouse, Postgres clickhouse_fdw, etc.) realistic in production?Sorry for the ramble, it's late here. But I can clarify if necessary.