Namit Jain created HIVE-3582:
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Summary: bug in union processing
Key: HIVE-3582
URL: https://issues.apache.org/jira/browse/HIVE-3582
Project: Hive
Issue Type: Bug
Components: Query Processor
Reporter: Namit Jain
EXPLAIN
SELECT e.key, e.arr_ele, count(1) FROM (
SELECT d.key as key, d.arr_ele as arr_ele, d.value as value, count(1) as cnt
FROM (
SELECT c.arr_ele as arr_ele, a.key as key, a.value as value FROM (
SELECT key, value, array(1,2,3) as arr
FROM src
UNION ALL
SELECT key, value, array(1,2,3) as arr
FROM srcpart
WHERE ds = '2008-04-08' and hr='12'
) a LATERAL VIEW EXPLODE(arr) c AS arr_ele
) d group by d.key, d.arr_ele, d.value
) e group by e.key, e.arr_ele;
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