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https://issues.apache.org/jira/browse/HIVE-65?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12653090#action_12653090
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Zheng Shao commented on HIVE-65:
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@joydeep: There are 2 drawbacks:
1. Authors of udf need to be aware of that. In oracle, the system does take
care of double -> string in udf so authors don't have to do it.
2. string -> int is lossy. The result of '1.1' = 1 will be true under our
agreed conversion partial order (string -> byte -> short -> int -> ... ->
double). But both mysql and oracle output that as FALSE.
> 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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