Parquet encoding articles

Encodings in Apache Parquet

An efficient data storage is one of success keys of a good storage format. One of methods helping to improve that is an appropriate encoding and Parquet comes with several different methods.

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Schema versions in Parquet

When I've started to play with Apache Parquet I was surprised about 2 versions of writers. Before approaching the rest of planed topics, it's a good moment to explain these different versions better.

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