[HIVE-4873] Sort candidate functions in case of UDFArgumentException

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.10.0, 0.11.0
• Fix Version/s: 0.12.0
• Component/s: Query Processor
• Assignee: Xuefu Zhang
• Reporter: Xuefu Zhang
• Created: 16/Jul/13 21:07
• Updated: 15/Oct/13 23:29
• Resolved: 18/Jul/13 04:28

Description

When Hive provides a list of candidate functions in case of UDFArgumentException such as for the following query:

create table tbl (a binary);
select cast (a as tinyint) from tbl limit 1;

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.

Issue Links

• is depended upon by: HIVE-4583 Make Hive compile and run with JDK7