[jira] [Assigned] (FLINK-27015) Hive dialect supports cast timestamp to decimal

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

     [ https://issues.apache.org/jira/browse/FLINK-27015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jark Wu reassigned FLINK-27015:
-------------------------------

    Assignee: luoyuxia

> Hive dialect supports cast timestamp to decimal
> -----------------------------------------------
>
>                 Key: FLINK-27015
>                 URL: https://issues.apache.org/jira/browse/FLINK-27015
>             Project: Flink
>          Issue Type: Sub-task
>            Reporter: luoyuxia
>            Assignee: luoyuxia
>            Priority: Major
>
> In hive, it's support to cast timestamp to decimal implictly with following sql:
> {code:java}
> create table t1 (c1 DECIMAL(38,6));
> create table t2 (c2 TIMESTAMP);
> insert into t1 select * from t2;
> -- or
> select cast(cast('2012-12-19 11:12:19.1234567' as timestamp) as decimal(30,8)){code}
> But it'll throw exception "The cast conversion from TIMESTAMP type to NUMERIC type is not allowed" with Hive dialect in Flink. 



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