Add clickhouse-trash-schema benchmark

[davidmenggx]

The same as ClickBench, but the hits table is split into a hundred tables with two columns each: id and one of the original columns, and hits becomes a view joining all of them by id.

See ClickHouse/ClickHouse#109426

[davidmenggx]

I wasn't able to run results yet, but I validated at small scale (schema creation, load and split, the hits view reassembling the original table exactly, all 43 queries)

[rschu1ze]

I wasn't able to run results yet, but I validated at small scale (schema creation, load and split, the hits view reassembling the original table exactly, all 43 queries)

I validated on a beefy machine c7a.metal-48xl and results were not great (lots of out-of-memory exceptions) :-( Anyways, I'll merge, we can use this as a starting point for optimizations. Thanks for working on this.