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https://issues.apache.org/jira/browse/CALCITE-3282?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Danny Chan resolved CALCITE-3282.
---------------------------------
    Fix Version/s: 1.22.0
         Assignee: Danny Chan
       Resolution: Fixed

Fixed in 
[148bfd3|https://github.com/apache/calcite/commit/148bfd329413c0272395cc0b7c322b3c5a34b667],
 thanks for your PR, [~ffmax] !

> HiveSqlDialect unparse Interger type as Int in order to be compatible with 
> Hive1.x
> ----------------------------------------------------------------------------------
>
>                 Key: CALCITE-3282
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3282
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>            Reporter: feng huang
>            Assignee: Danny Chan
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 1.22.0
>
>          Time Spent: 2.5h
>  Remaining Estimate: 0h
>
> Every database might have different type or same type but different type 
> name, therefore making every SqlDialect unparse their own data type is a 
> suitable way.
> For example, there is a sql “select cast(col as int) from table” change to 
> hive sql "select cast(col as integer) from table", but "integer" is not 
> allowed in hive.



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