jnturton commented on PR #2542:
URL: https://github.com/apache/drill/pull/2542#issuecomment-1122604719

   > LGTM +1
   > This is really a minor update, but is it worth adding a unit test?  We can 
skip it if it is a major hassle.
   
   I think a unit test would need a new DB2 testcontainer or a mocked JDBC 
Connection that returns a null like DB2 does. The cost/benefit of doing those 
to exercise a null test doesn't look good to me, but there may be some tricks I 
don't know. 


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