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https://issues.apache.org/jira/browse/SQOOP-3138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15883693#comment-15883693
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Suraj Nayak commented on SQOOP-3138:
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Thanks [~BoglarkaEgyed] and [~venkatnrangan]
> Netezza Direct Import does not support --columns options
> --------------------------------------------------------
>
> Key: SQOOP-3138
> URL: https://issues.apache.org/jira/browse/SQOOP-3138
> Project: Sqoop
> Issue Type: Bug
> Components: connectors
> Affects Versions: 1.4.6
> Reporter: Suraj Nayak
> Assignee: Suraj Nayak
> Priority: Minor
> Fix For: 1.4.7
>
> Attachments: SQOOP-3138.patch
>
>
> Netezza Direct import Mapper is not sensitive to {{columns}} option. The
> parameters passed to {{--columns C1,C2,C3,C4}} are ignored by
> {{NetezzaExternalTableImportMapper}}.
> [NetezzaExternalTableImportMapper|https://github.com/apache/sqoop/blob/trunk/src/java/org/apache/sqoop/mapreduce/db/netezza/NetezzaExternalTableImportMapper.java#L83]
> on line 83 is based of [output field names|
> https://github.com/apache/sqoop/blob/trunk/src/java/org/apache/sqoop/mapreduce/db/DBConfiguration.java#L420]
> instead of input field names.
> Even when -D mapreduce.jdbc.output.field.names=C1,C2,C3,C4 is set, another
> bug in [NetezzaExternalTableImportMapper @ line
> 128|https://github.com/apache/sqoop/blob/trunk/src/java/org/apache/sqoop/mapreduce/db/netezza/NetezzaExternalTableImportMapper.java#L128]
> duplicates the first column. This is due to the for loop initialization bug
> where variable {{i}} should be initialized to {{1}} instead of {{0}}.
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