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From "sunjincheng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-6097) Guaranteed the order of the extracted field references
Date Fri, 17 Mar 2017 10:02:41 GMT

    [ https://issues.apache.org/jira/browse/FLINK-6097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15929681#comment-15929681
] 

sunjincheng commented on FLINK-6097:
------------------------------------

I thank keep `a, b, c` .

> Guaranteed the order of the extracted field references
> ------------------------------------------------------
>
>                 Key: FLINK-6097
>                 URL: https://issues.apache.org/jira/browse/FLINK-6097
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API & SQL
>            Reporter: sunjincheng
>            Assignee: sunjincheng
>
> The current `ProjectionTranslator # identifyFieldReferences` method uses the` Set` temporary
save field, when the number of elements in the Set is less than 5, the Set takes the Se1,
Se2, Se3, Se4 data structures. When the number of elements is greater than or equal to 5,
the Set takes HashSet # HashTrieSet and which will cause the data to be out of order. although
the out of order is also working, but I think the order is better than out of order. So I
want to improve it,Orderly extraction field.



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