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From "Thomas D'Silva (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (PHOENIX-2088) Prevent splitting and recombining select expressions for MR integration
Date Mon, 20 Jul 2015 20:28:04 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-2088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Thomas D'Silva reassigned PHOENIX-2088:
---------------------------------------

    Assignee: Thomas D'Silva  (was: maghamravikiran)

> Prevent splitting and recombining select expressions for MR integration
> -----------------------------------------------------------------------
>
>                 Key: PHOENIX-2088
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-2088
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: James Taylor
>            Assignee: Thomas D'Silva
>         Attachments: PHOENIX-2088-pig.patch, PHOENIX-2088-wip-v2.patch, PHOENIX-2088-wip-v3.patch,
PHOENIX-2088-wip.patch
>
>
> We currently send in the select expressions for the MR integration with a delimiter separated
string, split based on the delimiter, and then recombine again using a comma separator. This
is problematic because the delimiter character may appear in a select expression, thus breaking
this logic. Instead, we should use a comma as the delimiter and avoid splitting and recombining
as it's not necessary in that case. Instead, the entire string can be used as-is in that case
to form the select expressions.



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