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https://issues.apache.org/jira/browse/PHOENIX-2785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15383745#comment-15383745
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James Taylor commented on PHOENIX-2785:
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How about a valid UPSERT (binding some KeyValue columns to null) followed by a
raw scan to ensure there are no delete markers?
> Do not store NULLs for immutable tables
> ---------------------------------------
>
> Key: PHOENIX-2785
> URL: https://issues.apache.org/jira/browse/PHOENIX-2785
> Project: Phoenix
> Issue Type: Improvement
> Affects Versions: 4.7.0
> Reporter: Lars Hofhansl
> Priority: Minor
> Attachments: 2785-v2.txt, 2785.txt
>
>
> Currently we do store Delete markers (or explicit Nulls). For immutable
> tables that is not necessary. Null is that distinguishable from an absent
> column.
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