Zoltan Haindrich created HIVE-24312:
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Summary: Use column stats to remove "x is not null" filter
conditions if they are redundant
Key: HIVE-24312
URL: https://issues.apache.org/jira/browse/HIVE-24312
Project: Hive
Issue Type: Improvement
Reporter: Zoltan Haindrich
Assignee: Zoltan Haindrich
with HIVE-24241 SharedWorkOptimizer could further merge branches for some
queries (ex:
[query32|https://github.com/apache/hive/blob/db895f374bf63b77b683574fdf678bfac91a5ac6/ql/src/test/results/clientpositive/perf/tez/query32.q.out#L118-L163]
)
...but a little `is not null` difference prevents it from proceeding.
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