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Hive, mail # user - Data Loss with Dynamic Partitioning

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Data Loss with Dynamic Partitioning
Jim Krehl 2012-10-18, 01:28

I'm doing an insert query that uses dynamic partitioning.  I'm running
the query on batches of source data at a time and each batch seems to
overwrite all matching dynamic partitions from previous batches.
There's no "overwrite" anywhere in my query.

Any ideas?