vineetgarg02 commented on a change in pull request #656: HIVE-21742 :
Vectorization: CASE result type casting
URL: https://github.com/apache/hive/pull/656#discussion_r290516708
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File path:
ql/src/test/results/clientpositive/llap/multi_count_distinct_null.q.out
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@@ -73,7 +73,7 @@ STAGE PLANS:
outputColumnNames: _col0, _col1, _col2, _col3
Statistics: Num rows: 18 Data size: 1628 Basic stats: COMPLETE
Column stats: COMPLETE
Select Operator
- expressions: CASE WHEN (((_col3 = 3L) and _col0 is not
null)) THEN (1) ELSE (null) END (type: int), CASE WHEN (((_col3 = 5L) and _col1
is not null)) THEN (1) ELSE (null) END (type: int), CASE WHEN (((_col3 = 6L)
and _col2 is not null)) THEN (1) ELSE (null) END (type: int)
+ expressions: CASE WHEN (((_col3 = 3L) and _col0 is not
null)) THEN (1) ELSE (UDFToInteger(null)) END (type: int), CASE WHEN (((_col3 =
5L) and _col1 is not null)) THEN (1) ELSE (UDFToInteger(null)) END (type: int),
CASE WHEN (((_col3 = 6L) and _col2 is not null)) THEN (1) ELSE
(UDFToInteger(null)) END (type: int)
Review comment:
Latest update fixes constant folding issue.
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