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1. Create a HiveInputDescription object
2. Fill it with information about the table to read from (with database, partition, columns)
3. Initialize HiveApiInputFormat with that the information
4. Go to town using HiveApiInputFormat with your Hadoop-compatible reading system.

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OutputFormat (writing to Hive)

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Usage:

1. Create a HiveOutputDescription object
2. Fill it with information about the table to write to (with database and partition)
3. Initialize HiveApiOutputFormat with the information
4. Go to town using HiveApiInputFormat with your Hadoop-compatible reading system.