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https://issues.apache.org/jira/browse/FLINK-10222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16593914#comment-16593914
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vinoyang commented on FLINK-10222:
----------------------------------
[~fhueske] agree, The exact match I call the regular expression is actually
from the keyword2Parser method:
{code:java}
implicit def keyword2Parser(kw: Keyword): Parser[String] = {
("""(?i)\Q""" + kw.key + """\E""").r
}
{code}
This method will convert the keyword into a Parser object. If I change it, then
we will make an exact match for all the keywords. I feel that there should be
no problem with this. What do you think?
> 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 & 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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