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https://issues.apache.org/jira/browse/PHOENIX-1881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14512820#comment-14512820
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James Taylor commented on PHOENIX-1881:
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Yes, let's just disallow it for now.


> Set value in our empty key value to Tephra won't treat it like a column delete
> ------------------------------------------------------------------------------
>
>                 Key: PHOENIX-1881
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1881
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: James Taylor
>            Assignee: Thomas D'Silva
>
> Tephra interprets an empty column value as a Column delete. We don't want 
> this to be the case for our empty KeyValue. Since we're only allowing a new 
> table to be set as transactional, let's set the value in our empty KeyValue 
> for transactional tables to a single byte. Then we can undo the change I made 
> to force STORE_NULLS to be true for transactional tables (in MetaDataClient). 
> In addition, we can set the TransactionAwareHTable flag to *not* treat an 
> empty value as a delete if STORE_NULLS is true.



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