kasakrisz commented on a change in pull request #877: HIVE-22538: RS
deduplication does not always enforce
hive.optimize.reducededuplication.min.reducer
URL: https://github.com/apache/hive/pull/877#discussion_r371307699
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File path: ql/src/test/results/clientpositive/autoColumnStats_4.q.out
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@@ -128,16 +127,20 @@ STAGE PLANS:
Statistics: Num rows: 10 Data size: 1728 Basic stats: COMPLETE
Column stats: COMPLETE
Group By Operator
aggregations: compute_stats(a, 'hll'), compute_stats(b, 'hll')
- minReductionHashAggr: 0.99
- mode: hash
+ mode: complete
Review comment:
Enabling parallelism when inserting eliminates this change.
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