It's definitely easier than conventional RDBMS. Adding a column in ClickHouse is just a metadata operation. BiqQuery has great nested structure support. Still,

It's definitely easier than conventional RDBMS. Adding a column in ClickHouse is just a metadata operation. BiqQuery has great nested structure support. Still, it's hard to beat MongoDB in this respect. In my first app I was amazed that I could just insert a BSON object and MongoDB created a queryable table automatically. You pay for it of course in other ways but the ease of use is quite extraordinary.