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From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-1704) Add year() built-in function
Date Sat, 07 Mar 2015 23:26:38 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-1704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14351836#comment-14351836
] 

James Taylor commented on PHOENIX-1704:
---------------------------------------

Who is asking for this function? I'm not sure we need it. Probably better to support the more
general and more standard EXTRACT function. We have a general way of inputting a DATE/TIME/TIMESTAMP
based on a string (both with TO_DATE, TO_TIME, and TO_TIMESTAMP plus with DATE literals).
Any other date built-in functions should work off of the DATE/TIME/TIMESTAMP type, not off
of VARCHAR (as otherwise we're duplicating functionality we already have).

Note that the TRUNC/FLOOR/CEIL/ROUND built-ins already support the idea of converting an exact
date to an exact multiple of time unit. See doc here: http://phoenix.apache.org/language/functions.html#trunc.
This is similar to what we'd need to do for EXTRACT. Support for WEEK, MONTH, QUARTER, and
YEAR would be useful.

> Add year() built-in function
> ----------------------------
>
>                 Key: PHOENIX-1704
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1704
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Alicia Ying Shu
>            Assignee: Alicia Ying Shu
>         Attachments: Phoenix-1704-v1.patch, Phoenix-1704.patch
>
>
> SELECT YEAR('2014-12-13 10:13:18', 'yyyy-MM-dd hh:mm:ss') FROM YEARFUNC  --> 2014
> SELECT YEAR('2014-12-13') FROM YEARFUNC  --> 2014
> SELECT YEAR('Sat, 3 Feb 2014 03:05:06 GMT', 'EEE, d MMM yyyy HH:mm:ss z', 'UTC') FROM
YEARFUNC  --> 2014



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