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https://issues.apache.org/jira/browse/PHOENIX-5736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17039566#comment-17039566
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Kadir OZDEMIR commented on PHOENIX-5736:
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[~gjacoby], I have just run the test on branch 4.x-HBase-1.3, it passes. This 
is a problem on the master branch but not on 4.x-HBase-1.3. I will check the 
other branches too.

> Mutable global index rebuilds are incorrect after PHOENIX-5494
> --------------------------------------------------------------
>
>                 Key: PHOENIX-5736
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-5736
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 5.0.0, 4.15.0, 4.14.3
>            Reporter: Kadir OZDEMIR
>            Priority: Critical
>         Attachments: skipScanTest.txt
>
>
> PHOENIX-5494 uses skip scans to improve write performance for tables with 
> indexes. Before this jira, a separate scanner was opened for each data table 
> mutation to read all versions and delete markers of for the row to be 
> mutated. With this jira, a single scanner is opened using a raw scan with a 
> skip scan filter to read all versions and delete markers of the all rows in a 
> batch. Reading existing data table rows is required to generate index updates.
> However, I have discovered that a raw scan with a skip scan filter does not 
> return all raw versions. This means that after PHOENIX-5494 index rebuilds 
> for global indexes will not be correct. 
>  



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