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https://issues.apache.org/jira/browse/HIVE-65?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12652332#action_12652332
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Zheng Shao commented on HIVE-65:
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> a) evaluate(string, string, int)
> b) evaluate(int, string, string)
This problem even happens for strict-typed languages (replace string with
double). So I don't think this is something we need to fix.
If we agree in most cases people convert string -> numeric, then all
numeric->string can be done by udf itself through polymorphism.
I think this is much cleaner than circular conversion.
I am +1 to stick to the original solution (and leave the author of concat to
implement Number->String conversion).
> 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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