THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Whether to enable the bucketed group by from bucketed partitions/tables.
hive.optimize.countdistinct
- Default Value:
true
- Added In: Hive 3.0.0
Whether to rewrite count distinct into 2 stages, i.e., the first stage uses multiple reducers with the count distinct key and the second stage uses a single reducer without key.
hive.multigroupby.singlemr
- Default Value:
false
- Added In: Hive 0.8.0 with HIVE-2056
- Removed In: Hive 0.9.0 by HIVE-2621 (see hive.multigroupby.singlereducer)
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