walterddr commented on a change in pull request #6622: [FLINK-10222] [table]
Table scalar function expression parses error when function name equals the
exists keyword suffix
URL: https://github.com/apache/flink/pull/6622#discussion_r216891057
##########
File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/expressions/ExpressionParser.scala
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@@ -45,6 +45,13 @@ object ExpressionParser extends JavaTokenParsers with
PackratParsers {
("""(?i)\Q""" + kw.key + """\E""").r
}
+ // Convert the keyword into an case insensitive Parser
+ // It uses an exact matching mode. scenes to be used:
+ // a keyword as a suffix no required parameter and not as a prefix
+ def keyword2ParserForSuffixButNotAsPrefix(kw: Keyword): Parser[String] = {
Review comment:
I felt like this should be by default applied to all Keywords when using
`suffix`
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