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https://issues.apache.org/jira/browse/PHOENIX-2088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14634334#comment-14634334
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James Taylor commented on PHOENIX-2088:
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+1 to this modified mechanism to pass through the type information and column
expressions. Probably best IMHO to standardize on this rather than have all the
Mappers get the information themselves. Thoughts, [~maghamravikiran] and
[~jmahonin]?
> 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-2088-4.4-HBase-0.98.patch,
> 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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