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Date: Wed, 7 Sep 2016 17:56:20 +0000 (UTC)
From: "ASF GitHub Bot (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (NIFI-2262) SQL processors fail if column name
 contains characters illegal for Avro
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archived-at: Wed, 07 Sep 2016 17:56:22 -0000


    [ https://issues.apache.org/jira/browse/NIFI-2262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15471333#comment-15471333 ] 

ASF GitHub Bot commented on NIFI-2262:
--------------------------------------

GitHub user mattyb149 opened a pull request:

    https://github.com/apache/nifi/pull/994

    NIFI-2262: Added Avro-normalization of table/column names in SQL processors

    Affected processors are QueryDatabaseTable and ExecuteSQL, since they generate Avro output. GenerateTableFetch is not affected as it generates SQL, however I added the property to the AbstractDatabaseFetchProcessor class so it could be reused by future processors.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/mattyb149/nifi NIFI-2262

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/nifi/pull/994.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #994
    
----
commit f452d36d076200084cf0c8823979a948a070adc2
Author: Matt Burgess <mattyb149@apache.org>
Date:   2016-09-07T17:53:47Z

    NIFI-2262: Added Avro-normalization of table/column names in SQL processors

----


> SQL processors fail if column name contains characters illegal for Avro
> -----------------------------------------------------------------------
>
>                 Key: NIFI-2262
>                 URL: https://issues.apache.org/jira/browse/NIFI-2262
>             Project: Apache NiFi
>          Issue Type: Bug
>            Reporter: Matt Burgess
>            Assignee: Matt Burgess
>
> For SQL processors that output Avro (ExecuteSQL, QueryDatabaseTable, etc.), if the SQL result set contains columns whose names contain Avro-illegal characters (such as a period), then an error occurs:
> org.apache.avro.SchemaParseException: Illegal character in: user.gender
> These processors should either normalize the names for Avro automatically or have a property indicating whether names should be normalized.
> A workaround for ExecuteSQL in many cases is to alias the columns in the SQL. This approach doesn't currently work in QueryDatabaseTable for incremental fetch (i.e. maximum-value columns)


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