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Posted to dev@hive.apache.org by Weiliang Hao <hw...@163.com> on 2023/03/07 02:21:40 UTC

Why antlr is used in hive sql parse

Hi All:
        I want to know the background of the use of antlr parse in hive sql. As far as I know, JavaCC is also a good parser. Why didn't choose JavaCC?
        Please tell me if anyone knows，thx!


Hao weiliang