A municipal grain-silo co-op already runs Apache Hive-style tables on Amazon EMR and wants a columnar, type-aware file layout that those jobs already speak. Which format fits that access pattern?
Select an answer to reveal the explanation.
Short Explanation
Think of a grain-silo co-op already speaking Hive on EMR. Apache ORC is the type-aware columnar layout those jobs already know. CSV is a dump, Avro is the write-stream cousin, and RecordIO is not a Hive table.
Full Explanation
Apache ORC is the warehouse, Hive, and Spark column-scan layout. CSV is a human-readable dump, not that type-aware default. Avro fits schema-evolution row writes more than Hive scans. RecordIO is not the EMR Hive table format.