Reynold Xin created SPARK-8240:
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             Summary: string function: concat
                 Key: SPARK-8240
                 URL: https://issues.apache.org/jira/browse/SPARK-8240
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
            Reporter: Reynold Xin


concat(string|binary A, string|binary B...): string / binary

Returns the string or bytes resulting from concatenating the strings or bytes 
passed in as parameters in order. For example, concat('foo', 'bar') results in 
'foobar'. Note that this function can take any number of input strings.




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