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https://issues.apache.org/jira/browse/PHOENIX-5881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17183649#comment-17183649
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Geoffrey Jacoby commented on PHOENIX-5881:
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[~elserj] - it's a port of existing logic in 4.x from PHOENIX-4277. Tephra
overloads the HBase timestamps to make them nanoseconds; the logic is basically
saying "if the timestamp is super-high, that means Tephra's running this Scan,
so don't mess with how HBase treats delete markers."
> Port MaxLookbackAge logic to 5.x
> --------------------------------
>
> Key: PHOENIX-5881
> URL: https://issues.apache.org/jira/browse/PHOENIX-5881
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Geoffrey Jacoby
> Assignee: Geoffrey Jacoby
> Priority: Blocker
> Fix For: 5.1.0
>
> Attachments: PHOENIX-5881.v1.patch, PHOENIX-5881.v2.patch,
> PHOENIX-5881.v3.patch
>
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
> PHOENIX-5645 wasn't included in the master (5.x) branch because an HBase 2.x
> change prevented the logic from being useful in the case of deletes, since
> HBase 2.x no longer allows us to show deleted cells on an SCN query before
> the point of deletion. Unfortunately, PHOENIX-5645 wound up requiring a lot
> of follow-up work in the IndexTool and IndexScrutinyTool to deal with its
> implications, and because of that, the 4.x and 5.x codebases around indexes
> have diverged a good bit.
> This work item is to get them back in sync, even though the behavior in the
> face of deletes will be somewhat different, and so most likely some tests
> will have to be changed or Ignored.
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