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https://issues.apache.org/jira/browse/PHOENIX-1401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14197735#comment-14197735
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James Taylor commented on PHOENIX-1401:
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[~mujtaba] - would you mind testing this a bit more? In particular, from a 4.1
created sequence table to a 4.2.1 version and from a 4.2.0 to a 4.2.1.
> SYSTEM.SEQUENCE table is not pre-split as expected
> --------------------------------------------------
>
> Key: PHOENIX-1401
> URL: https://issues.apache.org/jira/browse/PHOENIX-1401
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.2, 3.2
> Reporter: James Taylor
> Assignee: James Taylor
> Fix For: 4.3, 3.3, 4.2.1, 3.2.1
>
> Attachments: PHOENIX-1401.patch, PHOENIX-1401_v2.patch,
> PHOENIX-1401_v3.patch
>
>
> If a user is upgrading from 4.1 to 4.2, we salt the SYSTEM.SEQUENCE table,
> but we're not pre-splitting it as we should and thus not getting any
> performance gain. Any range scans done will not function correctly.
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