Posted On: Feb 22, 2018
Initially, it looks not possible as I am a regular RDBMS user like other programmers, but then I tried to connect in Hive context. I found it is possible as Hive creates schema and append on top of an existing data file. One can have multiple schema for one data file, schema would be saved in hive’s metastore and data will not be parsed read or serialized to disk in given schema. When s/he will try to retrieve data schema will be used. Lets say if my file have 5 column (Id, Name, Class, Section, Course) we can have multiple schema by choosing any number of column
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