[jira] [Assigned] (FLINK-29590) Fix literal issue in HiveDialect

["Jark Wu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-29590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jark Wu reassigned FLINK-29590:
-------------------------------

    Assignee: luoyuxia

> Fix literal issue in HiveDialect
> --------------------------------
>
>                 Key: FLINK-29590
>                 URL: https://issues.apache.org/jira/browse/FLINK-29590
>             Project: Flink
>          Issue Type: Bug
>          Components: Connectors / Hive
>    Affects Versions: 1.16.0
>            Reporter: luoyuxia
>            Assignee: luoyuxia
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.17.0
>
>
> in FLINK-26474, we try to fold constant, but it brings a issue that the folded constant like `Double.NAN` and no-primitive type  can't be convert into calcite literal in method  `HiveParserRexNodeConverter#convertConstant`.
> For example, the following code will throw an exception "org.apache.hadoop.hive.ql.parse.SemanticException: NaN" in method `HiveParserRexNodeConverter#convertConstant`
> {code:java}
> // hive dialect
> SELECT asin(2); {code}
> To fix it, we need to figure out such case and then not to fold constant .
>  
> in FLINK-27017, we use Hive's `GenericUDFOPDivide` to do divide for better compatibility, but it bring a issue that when use a int/long literal as divisor, the result type passed and inferred type may not match.
> The fix it, we need to make the result type match the inferred type.
>  



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