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From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-4800) Multiple phoenix tables can be created for the same HBase table.
Date Fri, 29 Jun 2018 12:57:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-4800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16527590#comment-16527590
] 

James Taylor commented on PHOENIX-4800:
---------------------------------------

We should disallow using a "." in a table name. Using "A.B" as the table name doesn't make
sense.

> Multiple phoenix tables can be created for the same HBase table.
> ----------------------------------------------------------------
>
>                 Key: PHOENIX-4800
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4800
>             Project: Phoenix
>          Issue Type: Bug
>         Environment: phoenix master 6acdae0ff1a63980f40fe1b794d40ab949cc423d with hbase
branch-1.4 defe97edb9f95600ec44525c47a2b23da643da2a
>            Reporter: Janos Gub
>            Priority: Major
>
> While namespace mapping is disabled the following two tables can be created and will
point to the same hbase table:
> CREATE TABLE A.B (x INTEGER PRIMARY KEY);
> CREATE TABLE "A.B" (y varchar PRIMARY KEY);
> It is because MetaDataEndpointImpl will determine if a table is created by checking
the presence of the byte table key in the metadata cache. But the byte key for A.B is 00410042
and the byte key for "A.B" is 0041e242. 
> This causes other issues I will link to this ticket.



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