Adding write compliant proto parquet support, but from new library 1.… #3
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…12.x, and upgrading for empty collection / required/optional support
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🤦 Unfortunately committed a maven credential -- since been revoked and generated new one for use locally. |
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Lots of discussion around parquet file formats -- want something writeCompliant, and that can be read by scala pb case classes -- which require collections to be empty, not null to avoid NPEs in Spark.
@kerdosa added the ability to write empty collections in the ArrayWriter -- so spark can read them from ScalaPB Case classes.
Note: Ignore all Legacy* commit, they are not used kafka-2.0.0 profile.