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From "Xingcan Cui (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-10463) Null literal cannot be properly parsed in Java Table API function call
Date Tue, 06 Nov 2018 16:32:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-10463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16676968#comment-16676968
] 

Xingcan Cui commented on FLINK-10463:
-------------------------------------

[~twalthr], sure. I'll cherry-pick the commit to versions 1.6.3 and 1.7.1.

> Null literal cannot be properly parsed in Java Table API function call
> ----------------------------------------------------------------------
>
>                 Key: FLINK-10463
>                 URL: https://issues.apache.org/jira/browse/FLINK-10463
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API &amp; SQL
>            Reporter: Xingcan Cui
>            Assignee: Hequn Cheng
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.6.3, 1.8.0, 1.7.1
>
>
> For example, the expression `Null(STRING).regexpReplace('oo|ar', '')` throws the following
exception.
> {code:java}
> org.apache.flink.table.api.ExpressionParserException: Could not parse expression at column
13: string matching regex `(?i)\Qas\E(?![_$\p{javaJavaIdentifierPart}])' expected but `.'
found
> Null(STRING).regexpReplace('oo|ar', '')
>             ^
> 	at org.apache.flink.table.expressions.ExpressionParser$.throwError(ExpressionParser.scala:576)
> 	at org.apache.flink.table.expressions.ExpressionParser$.parseExpression(ExpressionParser.scala:569)
> {code}



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