[HIVE-513] UDFToString bug

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Component/s: Query Processor
• Assignee: Min Zhou
• Reporter: Min Zhou
• Created: 24/May/09 16:27
• Updated: 07/Mar/11 19:35
• Resolved: 07/Mar/11 19:35

Description

execute a query like below,

select cast('my string' as string) from pokes;

you will get the result:

NULL
NULL
...

the reason is UDFToString hasn't an evaluate method acceptes Text or BytesWritable argument.