describe: report about compression method

planetlabs / gpq

Utility for working with GeoParquet

https://planetlabs.github.io/gpq/

Apache License 2.0

144 stars 8 forks source link

describe: report about compression method #47

Closed m-mohr closed 11 months ago

m-mohr commented 1 year ago

I think it would be interesting (e.g. for investigating #46) to report the compression method in gpq describe

tschaub commented 11 months ago

I added output about the compression to the describe output. This is a simplified view of the actual compression. In a Parquet file, compression can vary per column and per row group. The describe output only summarizes the compression levels in the first row group. For nested fields, the --format json output includes the compression for all fields. The non-JSON output only describes the top level logical fields.