hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Kostiantyn Kudriavtsev (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-6100) Introduce basic set operations as UDFs
Date Mon, 06 Jan 2014 19:12:50 GMT

    [ https://issues.apache.org/jira/browse/HIVE-6100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13863262#comment-13863262
] 

Kostiantyn Kudriavtsev commented on HIVE-6100:
----------------------------------------------

Alan, thank you for your comment
Could you please added Hive's SQL example, because your proposal is not totally clear for
me? 

> Introduce basic set operations as UDFs
> --------------------------------------
>
>                 Key: HIVE-6100
>                 URL: https://issues.apache.org/jira/browse/HIVE-6100
>             Project: Hive
>          Issue Type: New Feature
>          Components: UDF
>            Reporter: Kostiantyn Kudriavtsev
>            Priority: Minor
>             Fix For: 0.13.0
>
>
> Introduce basic set operations:
> 1. Intersection: The intersection of A and B, denoted by A ∩ B, is the set of all things
that are members of both A and B.
> select set_intersection(arr_a, arr_b) from dual
> 2. Union: The union of A and B, denoted by A ∪ B, is the set of all things that are
members of either A or B.
> select set_union(arr_a, arr_b) from dual
> 3. Symmetric difference: the symmetric difference of two sets is the set of elements
which are in either of the sets and not in their intersection.
> select set_symdiff(arr_a, arr_b) from dual



--
This message was sent by Atlassian JIRA
(v6.1.5#6160)

Mime
View raw message