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What is SerDe in the hive?

Answer»

Serializer/Deserializer is popularly known as SerDe. For IO, Hive employs the SerDe protocol. Serialization and DESERIALIZATION are handled by the interface, which also interprets serialization results as SEPARATE fields for processing.

The Deserializer turns a RECORD into a Hive-compatible Java object. The Serializer now turns this Java object into an HDFS-compatible format. The storage role is then TAKEN over by HDFS. Anyone can create their own SerDe for their own data format.



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