[durner]

Sure, a filtering scan or an index lookup is better in chunked SoA (or PAX as we database people say) than without chunks due to the metadata filter options. We briefly talk about that in the out-of-memory optimization section. Most column-based formats/databases are actually inspired by the ideas of PAX, they often just use a bit coarser granularity (e.g. Parquet's rowgroups).