Scott created NIFI-1029:
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             Summary: Need to add a new attriibute to ExecuteSQL to indicate 
how many rows were selected
                 Key: NIFI-1029
                 URL: https://issues.apache.org/jira/browse/NIFI-1029
             Project: Apache NiFi
          Issue Type: Improvement
          Components: Extensions
    Affects Versions: 0.3.0
            Reporter: Scott
            Priority: Critical


When running a select we need to provide a rows.count attribute so we can 
detect if there is any data. This will prevent passing no data to the 
ConvertAvroToJson and getting an error because there is no data.

Relates too NIFI-972, but I cannot figure out how to add that in.



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