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https://issues.apache.org/jira/browse/HIVE-65?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12652182#action_12652182
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Joydeep Sen Sarma commented on HIVE-65:
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if u can go both ways (string -> number and number -> string) - which way would
u go? any rules we would come up with (perhaps based on context etc.) would
become complicated. mysql does something even simpler than we proposed and
people seem ok with that ..
regarding the concat example - can't we make the function polymorphic? concat
can take responsibilty for converting everything to string.
> 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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