Apache Parquet

Apache Parquet is an efficient, structured, column-oriented (also called columnar storage), compressed, binary file format. Parquet supports several compression codecs, including Snappy, GZIP, deflate, and BZIP2. Snappy is the default. Structured file formats such as RCFile, Avro, SequenceFile, and Parquet offer better performance with compression support, which reduces the size of the data on the disk and consequently the I/O and CPU resources required to deserialize data. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.