nabarun created GEODE-4724:

             Summary: Undefined class needs to be in a public package
                 Key: GEODE-4724
             Project: Geode
          Issue Type: Bug
          Components: querying
            Reporter: nabarun

 * Currently undefined class is placed in the 
org.apache.geode.cache.query.internal package
 * But undefined is exposed to the user when queries try to do something like 
projecting a field that does not exist or extract a value from NULL

 * Anything that is exposed to the user should not be in the internal package.
 * This needs to be moved to public package

 * Doing this may result in breaking backwards compatibility
 * Older clients will be expecting undefined from an internal package but will 
receive a undefined present in a package that it is not able to identify.


This task will need a discussion to find a viable solution.

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