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Message Posted: Thu, 03 Sep 2009 @ 09:32:49 GMT

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Partitions are indeed created at the moment you create the table. I, however, don't see a problem with empty partitions. One reason people prefer not to create a lot of empty partitions for future use is to prevent problems with erroneous data. Imagine one day you will load a large portion of data with incorrect future dates. You will get a totally unexpected data distribution and clearing up the mess will be more difficult than when you just have one "junk" partition for all unexpected rows. But if you have a good Plan B for such events or you can trust the ETL validation rules then this becomes less of an issue.

Victor

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