-Adding keywords to Pig Latin (Was: Question about UDFs and tuple ordering)
I've taken some time to understand how a Logical Plan progresses to a Physical and MR Plan (thanks for the boost, Alan!)
My next question is centered around Logical Plan generation. If one were to add a new keyword (sticking with the theme in my last message, say, SUPERSPECIALJOIN), that keyword would have to be added into the grammar files. Perhaps this isn't obvious to me because I'm not an ANTLR user (learning), but what is each grammar file responsible for?
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