[
https://issues.apache.org/jira/browse/HIVE-2509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13131169#comment-13131169
]
Jonathan Chang commented on HIVE-2509:
--------------------------------------
There are two issues:
1.) There are actually lots of UDFs which are pretty sensitive to type. In
particular, widening will not handle cases where array<int> needs to be widened
to array<bigint> (there's a reason this sort of thing isn't autocasted in C++,
Java, etc.).
2.) I generally think widening is a bad idea because it makes people less
careful with types. For example, without looking, what will
> explain select * from (select '0' from akramer_one_row union all select
> 12345678900 from akramer_one_row) a;
return as the type of the outer query? The answer is pretty terrible; if any
other language did this to you you'd be pretty furious.
> Literal bigint
> --------------
>
> Key: HIVE-2509
> URL: https://issues.apache.org/jira/browse/HIVE-2509
> Project: Hive
> Issue Type: New Feature
> Reporter: Jonathan Chang
> Assignee: Jonathan Chang
> Attachments: D15.1.patch, D15.1.patch
>
>
> Typing bigints is a pain because you have to write CAST(0 AS BIGINT). We
> should let people type 0L instead.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
