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https://issues.apache.org/jira/browse/PHOENIX-1211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14123347#comment-14123347
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James Taylor commented on PHOENIX-1211:
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bq. Doesn't incrementing them by certain values all the time mean that we
completely ignore certain indices of the position array?
Yes. The reason is that multiple parts of the row key are being compared
when the slot span is greater than zero.
> Use skip scan when row value constructor uses leading row key columns
> ----------------------------------------------------------------------
>
> Key: PHOENIX-1211
> URL: https://issues.apache.org/jira/browse/PHOENIX-1211
> Project: Phoenix
> Issue Type: Bug
> Reporter: James Taylor
> Assignee: Kyle Buzsaki
> Attachments: PHOENIX-1211-diff.patch
>
>
> We currently only use a skip scan for a row value constructor equality or in
> list expression is fully qualified. We can fairly easily use it when only
> some of the leading pk columns are used.
> For example:
> {code}
> WHERE (a,b) IN ((1,2),(3,4))
> {code}
> If the PK is (a,b,c), we can still use a skip scan. We need to pass through
> the slotSpan array in this case too, to the SkipScanFilter.
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