Parquet is not a database, it's a storage format that allows efficient column reads so you can get just the data you need without having to parse and read the whole file.
Most tools can run queries across parquet files.
Like everything, it has its strengths and weaknesses, but in most cases, it has better trade-offs over CSV if you have more than a few thousand rows.
This is not emphasized often enough. Parquet is useless for anything that requires writing back computed results as in data used by signal processing applications.
Most tools can run queries across parquet files.
Like everything, it has its strengths and weaknesses, but in most cases, it has better trade-offs over CSV if you have more than a few thousand rows.