Vineet Garg created HIVE-16851:
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Summary: Scalar subquery with group by missing sq_count_check UDF
Key: HIVE-16851
URL: https://issues.apache.org/jira/browse/HIVE-16851
Project: Hive
Issue Type: Bug
Reporter: Vineet Garg
Assignee: Vineet Garg
Query such as
{code:sql}
explain select * from part where p_size > (select max(p_size) from part group
by p_type);
{code}
is missing {{sq_count_check}} UDF which ensures there is at most one row coming
from subquery.
This problem was originally reported as part of HIVE-16793
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