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From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Issue Comment Deleted] (PHOENIX-258) Use skip scan when SELECT DISTINCT on leading row key column(s)
Date Sat, 20 Feb 2016 22:33:18 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

James Taylor updated PHOENIX-258:
---------------------------------
    Comment: was deleted

(was: [~kbuzsaki] - this would be a good one for you.)

> Use skip scan when SELECT DISTINCT on leading row key column(s)
> ---------------------------------------------------------------
>
>                 Key: PHOENIX-258
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-258
>             Project: Phoenix
>          Issue Type: Task
>            Reporter: ryang-sfdc
>              Labels: gsoc2016
>             Fix For: 4.8.0
>
>
> create table(a varchar(32) not null, date date not null constraint pk primary key(a,date))
> [["PLAN"],["CLIENT PARALLEL 94-WAY FULL SCAN OVER foo"],["    SERVER AGGREGATE INTO ORDERED
DISTINCT ROWS BY [a]"],["CLIENT MERGE SORT"]]             
> We should skip scan.



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