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Posted to issues@flink.apache.org by "luoyuxia (Jira)" <ji...@apache.org> on 2022/10/21 03:13:00 UTC

[jira] [Commented] (FLINK-29703) Fail to call unix_timestamp in runtime in Hive dialect

    [ https://issues.apache.org/jira/browse/FLINK-29703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17621463#comment-17621463 ] 

luoyuxia commented on FLINK-29703:
----------------------------------

The reason is the hive function unix_timestamp will call `SessionState.get().getQueryCurrentTimestamp()` in runtime.

But the SessionState.get() will return null since the SessionState will be closed in Flink.

Considering `SessionState.get().getQueryCurrentTimestamp()` is actually a fixed value set in query parse phase.

To fix it, we need to convert the function call `unix_timestamp` to literal instead of evaluting in runtime siince the value has no difference between convert it to a literal and evaluating it in runtime. 

> Fail to call unix_timestamp  in runtime in Hive dialect 
> --------------------------------------------------------
>
>                 Key: FLINK-29703
>                 URL: https://issues.apache.org/jira/browse/FLINK-29703
>             Project: Flink
>          Issue Type: Bug
>          Components: Connectors / Hive
>            Reporter: luoyuxia
>            Priority: Major
>




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