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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-10728) deprecate unix_timestamp(void) and make it deterministic
Date Mon, 01 Jun 2015 23:41:17 GMT

    [ https://issues.apache.org/jira/browse/HIVE-10728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14568230#comment-14568230
] 

Alan Gates commented on HIVE-10728:
-----------------------------------

bq. At the very least, this seems to fall into the category of something you want to commit
on trunk and not on branch-1.
+1, as this is a definite backwards incompatible change.

> deprecate unix_timestamp(void) and make it deterministic
> --------------------------------------------------------
>
>                 Key: HIVE-10728
>                 URL: https://issues.apache.org/jira/browse/HIVE-10728
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-10728.01.patch, HIVE-10728.02.patch, HIVE-10728.03.patch, HIVE-10728.patch
>
>
> We have a proper current_timestamp function that is not evaluated at runtime.
> Behavior of unix_timestamp(void) is both surprising, and is preventing some optimizations
on the other overload since the function becomes non-deterministic.



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