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https://issues.apache.org/jira/browse/HIVE-24435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltan Haindrich updated HIVE-24435:
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Comment: was deleted
(was: looks like there are some things here
* unix_timestamp is deprecated - recommends to use current_timestamp - however
current_timestamp doesnt take any argument; so its puzzling to suggest to use
that
* GenericUDFUnixTimeStamp has some implementation; but it also extends
GenericUDFToUnixTimeStamp which also has a few vectorized implementations
attached
* unix_timestamp behaves 100% the same as to_unix_timestamp in case an argument
is specfied)
> Vectorized unix_timestamp is inconsistent with non-vectorized counterpart
> -------------------------------------------------------------------------
>
> Key: HIVE-24435
> URL: https://issues.apache.org/jira/browse/HIVE-24435
> Project: Hive
> Issue Type: Bug
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
>
> {code}
> create table t (d string);
> insert into t values('2020-11-16 22:18:40 UTC');
> select
> '>' || d || '<' , unix_timestamp(d), from_unixtime(unix_timestamp(d)),
> to_date(from_unixtime(unix_timestamp(d)))
> from t
> ;
> set hive.fetch.task.conversion=none;
> select
> '>' || d || '<' , unix_timestamp(d), from_unixtime(unix_timestamp(d)),
> to_date(from_unixtime(unix_timestamp(d)))
> from t
> ;
> {code}
> results:
> {code}
> -- std udf:
> >2020-11-16 22:18:40 UTC< 1605593920 2020-11-16 22:18:40
> >2020-11-16
> -- vectorized udf
> >2020-11-16 22:18:40 UTC< NULL NULL NULL
> {code}
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