Zhihua Deng created HIVE-23850:
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Summary: Allow PPD when subject is not a column with grouping sets
present
Key: HIVE-23850
URL: https://issues.apache.org/jira/browse/HIVE-23850
Project: Hive
Issue Type: Bug
Components: Logical Optimizer
Reporter: Zhihua Deng
After [HIVE-19653|https://issues.apache.org/jira/browse/HIVE-19653], filters
with only columns and constants are pushed down, but in some cases, this may
not work as well, for example:
SET hive.cbo.enable=false;
SELECT a, b, sum(s)
FROM T1
GROUP BY a, b GROUPING SETS ((a), (a, b))
HAVING upper(a) = "AAA" AND sum(s) > 100;
SELECT upper(a), b, sum(s)
FROM T1
GROUP BY upper(a), b GROUPING SETS ((upper(a)), (upper(a), b))
HAVING upper(a) = "AAA" AND sum(s) > 100;
The filters pushed down to GBY can be f(gbyKey) or gbyKey with udf , not only
the column groupby keys.
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