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https://issues.apache.org/jira/browse/PHOENIX-2088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14613488#comment-14613488
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James Taylor commented on PHOENIX-2088:
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Thanks, [~maghamravikiran]. LGTM. So this patch doesn't serialize the
List<ColumnInfo> as a String anymore, so no need for a separator character? I
couldn't quite tell *how* it does get the List<ColumnInfo>. What's the new
mechanism?
> 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: maghamravikiran
> Attachments: PHOENIX-2088-pig.patch, PHOENIX-2088-wip-v2.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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