Xuefu Zhang created HIVE-4873:
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Summary: Sort candidate functions in case of UDFArgumentException
Key: HIVE-4873
URL: https://issues.apache.org/jira/browse/HIVE-4873
Project: Hive
Issue Type: Improvement
Components: Query Processor
Reporter: Xuefu Zhang
Assignee: Xuefu Zhang
Priority: Minor
When Hive provides a list of candidate functions in case of
UDFArgumentException such as for the following query:
{code}
create table tbl (a binary);
select cast (a as tinyint) from tbl limit 1;
{code}
the list is not sorted, so the output is not deterministic. Also, we have many
test cases depending on the ordering. Thus, it's good to sort the list before
emitting it.
This should fixes quite a few test case failures when Hive runs in JDK7.
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