Compression of collections

[PlatonB]

It is not clear whether collections are compressed. If so, what algorithm is used by default? Can the user specify a preferred algorithm and compression level?

An example from the MongoDB world:
create_collection(name, storageEngine={'wiredTiger': {'configString': 'block_compressor=zstd'}})

[scottrogowski]

Collections are not compressed in any way right now. Is this an essential use case for you or a nice-to-have?

[PlatonB]

Compression is critical when storing large bioinformatic data (example 1, example 2, ..., in-house laboratory genomic data). I am sure that in other fields (e.g., astronomy) there are examples too.