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AWS Glue does not have official support for Hudi. So you may possibly hit runtime issues which you would have to workaround by yourself. Please look at #1977 for more context.

Why partition fields are also stored in parquet files in addition to the partition path ?

Hudi supports customizable partition values which could be a derived value of another field. Also, storing the partition value only as part of the field results in losing type information when queried by various query engines.

Contributing to FAQ 

A good and usable FAQ should be community-driven and crowd source questions/thoughts across everyone. 

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