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https://issues.apache.org/jira/browse/DRILL-1640?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matt Burgess updated DRILL-1640:
--------------------------------
    Attachment: DRILL-1640.patch.3

Squashed commits, attached new patch

> DrillColumnMetaDataList does not implement List methods
> -------------------------------------------------------
>
>                 Key: DRILL-1640
>                 URL: https://issues.apache.org/jira/browse/DRILL-1640
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Client - JDBC
>            Reporter: Matt Burgess
>         Attachments: DRILL-1640.patch.1, DRILL-1640.patch.2, 
> DRILL-1640.patch.3
>
>
> DrillColumnMetaDataList extends from org.apache.drill.jdbc.BasicList, which 
> does not implement much of the List interface (it usually throws 
> UnsupportedOperationExceptions).
> One of these methods, iterator(), is called when searching for columns by 
> name in the result set. Using the JDBC API, if you call 
> DrillResultSet.getString("myColumnName"), you get something like the 
> following stack trace:
> Caused by: java.lang.UnsupportedOperationException
>       at org.apache.drill.jdbc.BasicList.iterator(BasicList.java:44)
>       at 
> org.apache.drill.jdbc.DrillColumnMetaDataList.iterator(DrillColumnMetaDataList.java:34)
>       at 
> net.hydromatic.avatica.AvaticaResultSet.findColumn0(AvaticaResultSet.java:69)
>       at 
> net.hydromatic.avatica.AvaticaResultSet.getAccessor(AvaticaResultSet.java:102)
>       at 
> net.hydromatic.avatica.AvaticaResultSet.getString(AvaticaResultSet.java:270)
> DrillColumnMetaDataList should behave as a proper list.



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