April 2016
Beginner
268 pages
5h 32m
English
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Serialization and deserialization formats and data types
Serialization and deserialization formats are popularly known as SerDes. Hive allows the framework to read or write data in a particular format. These formats parse the structured or unstructured data bytes stored in HDFS in accordance with the schema definition of Hive tables. Hive provides a set of in-built SerDes and also allows the user to create custom SerDes based on their data definition. These are as follows:
LazySimpleSerDeRegexSerDeAvroSerDeOrcSerdeParquetHiveSerDeJSONSerDeCSVSerDe
How to do it…
You can use different types of SerDes for reading or writing the data in a particular format.
LazySimpleSerDe
This is the default SerDes format of Hive. When a user creates a table in Hive without ...
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