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From sunjincheng121 <...@git.apache.org>
Subject [GitHub] flink issue #3560: [FLINK-6097][table] Guaranteed the order of the extracted...
Date Fri, 17 Mar 2017 23:33:46 GMT
Github user sunjincheng121 commented on the issue:

    HI, @KurtYoung Thanks for your attention to this PR. Good question, the purpose of this
change is just like this JIRA's description:
    I want `ProjectionTranslator # identifyFieldReferences`  to guaranteed the order of the
extracted field references same as input order. using `Set` just want to eliminate duplicate
field references, and `List` also can do this, it is no harm to keep the `ProjectionTranslator
# identifyFieldReferences` method's output order consistent with input.
    If the disorder results of  `ProjectionTranslator # identifyFieldReferences` can work,
then the orderly results must also work very well, because the order is also a  situation
of disorder. 
    What to you think?

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