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When We Goes To Partition? |
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Answer» By DEFAULT Hive reads entire DATASET even the application have a SLICE of data. It’s a bottleneck for mapreduce jobs. So Hive allows special option called partitions. When you are creating table, hive PARTITIONING the table based on requirement. By default Hive reads entire dataset even the application have a slice of data. It’s a bottleneck for mapreduce jobs. So Hive allows special option called partitions. When you are creating table, hive partitioning the table based on requirement. |
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