daveKim created HIVE-21054:
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Summary: union all query result empty
Key: HIVE-21054
URL: https://issues.apache.org/jira/browse/HIVE-21054
Project: Hive
Issue Type: Bug
Components: Query Planning
Affects Versions: 3.1.1
Reporter: daveKim
{code:java}
//
set hive.vectorized.execution.enabled=FALSE;
set hive.optimize.union.remove=FALSE;
SELECT distinct t1.ctype, t1.id_all , t2.list19
FROM (
SELECT ctype22 AS ctype, id20 AS id_all, list19 AS item_list
FROM tab WHERE stn1='20130101010100'
AND ctype22 BETWEEN 2 AND 5 --result 45 row
UNION ALL
SELECT ctype22 AS ctype, id20 AS id_all, list19 AS item_list
FROM space
WHERE stn1='20130102010100'
AND ctype22 BETWEEN 2 AND 5 --result empty
) t1 JOIN colon t2 ON (t1.id_all = t2.id20 AND t2.list19 ='ITEM30') -- join
matched 3 rows
{code}
expected result
||ctype||id_all||list19||
|2|104|ITEM30|
|2|683|ITEM30|
|1|970|ITEM30|
but, actual result empty..
am i wrong properties or query?
reference
# HIVE-12788
# HIVE-20319
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