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would pick out half of the 3rd cluster as each bucket would be composed of (32/64)=1/2 of a cluster.
Block Sampling
It is a feature that is still on trunk and is not yet in any release version.Block sampling is available starting with Hive 0.8. Addressed under JIRA - https://issues.apache.org/jira/browse/HIVE-2121
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block_sample: TABLESAMPLE (n PERCENT) |
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