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From Karl Wright <>
Subject Re: About using ManifoldCF to crawl a MySQL table
Date Thu, 27 Feb 2014 09:26:58 GMT

The reason you get the metadata error is because of this code:

        Object metadata = row.getValue(columnName);
        if (metadata instanceof BinaryInput)
          throw new ManifoldCFException("Metadata column '"+columnName+"'
must be convertible to a string, and cannot be binary");

That is getting set because:

          if (isBinaryData(rsmd,colnum))
            InputStream bis = rs.getBinaryStream(colnum);
            if (bis != null)
              value = new TempFileInput(bis);

So, the MySQL JDBC driver is incorrectly telling the JDBC Connector that
the column is binary, no matter how you cast it.

To work around this, I can forcibly convert the column value to a string.
I've created CONNECTORS-904 to track this problem.  I will have a fix
committed shortly, and attach a patch.


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