[ 
https://issues.apache.org/jira/browse/CALCITE-1378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15510730#comment-15510730
 ] 

Julian Hyde commented on CALCITE-1378:
--------------------------------------

+1

I'd write

{code}
+          final String tableName = map.keySet().iterator().next();
+          final SqlValidatorNamespace namespace = 
map.values().iterator().next();
{code}

a little differently, assigning {{map.entrySet().iterator().next()}} to a 
variable rather than independently iterating over keys and values.

> ArrayIndexOutOfBoundException in sql-to-rel conversion for two-level columns
> ----------------------------------------------------------------------------
>
>                 Key: CALCITE-1378
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1378
>             Project: Calcite
>          Issue Type: Bug
>    Affects Versions: 1.9.0
>            Reporter: Maryann Xue
>            Assignee: Maryann Xue
>              Labels: phoenix
>         Attachments: CALCITE-1378.patch
>
>
> There was a little bit left over to be done for CALCITE-1208, as mentioned in 
> https://issues.apache.org/jira/browse/CALCITE-1208?focusedCommentId=15427099&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15427099.



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