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https://issues.apache.org/jira/browse/HIVE-3822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13544642#comment-13544642
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Ryan Harris commented on HIVE-3822:
-----------------------------------
Shouldn't these tests have returned:
Wed, 19 Dec 2012 19:12:19
?
> Casting from double to timestamp type seems inconsistent
> --------------------------------------------------------
>
> Key: HIVE-3822
> URL: https://issues.apache.org/jira/browse/HIVE-3822
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.9.0
> Reporter: Mark Grover
> Assignee: Mark Grover
>
> {code}
> select cast(1355944339 as timestamp) from decimal_3 limit 1;
> 1970-01-16 08:39:04.339
> select cast(1355944339000 as timestamp) from decimal_3 limit 1;
> 2012-12-19 11:12:19
> select cast(1355944339.123456789 as timestamp) from decimal_3 limit 1;
> 2012-12-19 11:12:19.1234567
> {code}
> If specifying the unixTimestamp without a decimal point, we need to specify
> the millisecond timestamp. If specifying with a decimal point, we need to
> specify only the second timestamp and the rest goes after decimal. Moreover,
> it seems like some precision is lost (notice '89' are lost in the last query.
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