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https://issues.apache.org/jira/browse/CONNECTORS-1032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14135515#comment-14135515
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Karl Wright commented on CONNECTORS-1032:
-----------------------------------------

Hi Mario,

That means that the result of the query, done via the MySQL JDBC driver, 
contains no result columns at all.  That's pretty strange.

Can you verify that we're using the right MySQL JDBC driver for your version of 
MySQL?  
The version we download is:

            <param name="artifact-version" value="5.1.18"/>
            <param name="artifact-name" value="mysql-connector-java"/>




> Can't crawl MySQL database tables
> ---------------------------------
>
>                 Key: CONNECTORS-1032
>                 URL: https://issues.apache.org/jira/browse/CONNECTORS-1032
>             Project: ManifoldCF
>          Issue Type: Bug
>          Components: JDBC connector
>            Reporter: Karl Wright
>            Assignee: Karl Wright
>         Attachments: screenshot-1.png
>
>
> Against some indeterminate version of MySQL, the seeding query:
> {code}
> SELECT command_id AS $(IDCOLUMN) FROM icinga_commands
> {code}
> ... produces the following:
> Error: Bad seed query; doesn't return $(IDCOLUMN) column. Try using quotes 
> around $(IDCOLUMN) variable, e.g. "$(IDCOLUMN)".
> So does:
> {code}
> SELECT command_id AS "$(IDCOLUMN)" FROM icinga_commands
> {code}
> The first level of diagnosis will be to determine what column names are in 
> fact being returned.  IDynamicResultRow has the following method:
> {code}
>  public Iterator<String> getColumns();
> {code}
> ... which we will need to use to get at the column names.



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