Print out query results

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What steps will reproduce the problem?
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What is the expected output? What do you see instead?

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What version of the product are you using? On what operating system?
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Please provide any additional information below.

How does one verify that the gpudb executes a query correctly? Is there a 
recommended way  to printout the result of a query execution?

Original issue reported on code.google.com by [e-mail] on 18 Mar 2014 at 5:13