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https://issues.apache.org/jira/browse/PHOENIX-5096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17002265#comment-17002265
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Lars Hofhansl commented on PHOENIX-5096:
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This seems to do it... For local indexes we can ignore a region if the
corresponding data plan does not scan than that region at all (then we know for
sure we won't find the key in the local index for that region).
> Local index region pruning is not working as expected.
> ------------------------------------------------------
>
> Key: PHOENIX-5096
> URL: https://issues.apache.org/jira/browse/PHOENIX-5096
> Project: Phoenix
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Priority: Major
> Attachments: 5096-4.x-HBase-1.5.txt
>
>
> The pruning of local indexes should do the following:
> * Use the local index
> * Reduce the number of regions based on filters on the table's primary key
> (i.e. WHERE conditions including prefixes of the primary key)
> Instead it looks like in order for this to work the needed PK column need to
> be included in the local index itself, changing the sort order of the local
> index.
> I'll provide some examples in the comments.
> [~giacomotaylor], [~tdsilva], [~vincentpoon], [~elserj], [~gjacoby]
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