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From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (PHOENIX-1768) GROUP BY should support column position as well as column alias
Date Tue, 24 Mar 2015 05:44:52 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-1768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

James Taylor resolved PHOENIX-1768.
-----------------------------------
    Resolution: Invalid

> GROUP BY should support column position as well as column alias
> ---------------------------------------------------------------
>
>                 Key: PHOENIX-1768
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1768
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Serhiy Bilousov
>
> In postgreSQL (and many others DBs) you can specify not only column name for the GROUP
BY but column number (position in SELECT part) as well as column alias.
> see:
> http://www.postgresql.org/docs/9.4/static/queries-order.html
> http://www.postgresql.org/docs/9.4/static/sql-select.html#SQL-GROUPBY
> Adding such support would be very helpful and sometimes necessary.
> I can provide real queries example if required but basically we want something like this
> given query
> SELECT a, b, TRUNC(current_date(),'HOUR') AS date_truncated FROM table 
> we want 
> GROUP BY 1, 2
> Having just column number would cover both but having column alias would make queries
more readable and human friendly. Plus make it one little stem closer to postgreSQL and SQL
standard.



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