> How to you propose to handle the use of getChildExps in RelWriterImpl?
RelWriterImpl is using getChildExps _only_ to assert that all the RexNodes were inserted in correct order (e.g. the order of .item calls match getChildExps). Is this a proper assertion at all? I can emulate that behavior with RexShuttle and it won't hurt performance much since it would execute only in assert-enabled build. However I do not feel this assertion was properly placed in the first place. Vladimir
