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From "vinoyang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-10222) Table scalar function expression parses error when function name equals the exists keyword suffix
Date Mon, 27 Aug 2018 15:48:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-10222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16593852#comment-16593852
] 

vinoyang commented on FLINK-10222:
----------------------------------

So, what do you think exactly matches a keyword as a suffix? Because the suffix keyword is
deterministic and semantically clear. Or is there any other better solution? [~walterddr]
[~fhueske]

> Table scalar function expression parses error when function name equals the exists keyword
suffix
> -------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-10222
>                 URL: https://issues.apache.org/jira/browse/FLINK-10222
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API &amp; SQL
>            Reporter: vinoyang
>            Priority: Major
>
> Suffix extraction in ExpressionParser.scala does not actually support extraction of keywords
with the same prefix. For example: Adding suffix parsing rules for {{a.fun}} and {{a.function}}
simultaneously will causes exceptions. 
> some discussion : 
> [https://github.com/apache/flink/pull/6432#issuecomment-416127815]
> https://github.com/apache/flink/pull/6585#discussion_r212797015



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