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https://issues.apache.org/jira/browse/HIVE-65?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12652133#action_12652133
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Zheng Shao commented on HIVE-65:
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Yep. The problem with this test case is an ambiguous call: evaluate(String,
Number), evaluate(Number, String), and evaluate(Long, Long) all fit with one
implicit conversion.
I think we have to disallow the circular conversion.
This is what we discussed on the mailing list long time ago (This disallows
number -> string implicit conversion)
String -> byte -> int -> long -> double
int -> float -> double
Is this your plan for the fix?
> Implict conversion from integer to long broken for Dynamic Serde tables
> -----------------------------------------------------------------------
>
> Key: HIVE-65
> URL: https://issues.apache.org/jira/browse/HIVE-65
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Ashish Thusoo
> Assignee: Zheng Shao
>
> For a dynamic serde table that has a bigint column, implict conversion from
> int to bigint seems to be broken. I have not verified this for other tables.
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