[jira] [Created] (FLINK-3086) ExpressionParser does not support concatenation of suffix operations

[Shang Yuanchun (Jira)]

Timo Walther created FLINK-3086:
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             Summary: ExpressionParser does not support concatenation of suffix operations
                 Key: FLINK-3086
                 URL: https://issues.apache.org/jira/browse/FLINK-3086
             Project: Flink
          Issue Type: Bug
          Components: Table API
            Reporter: Timo Walther


The ExpressionParser of the Table API does not support concatenation of suffix operations. e.g. {code}table.select("field.cast(STRING).substring(2)"){code} throws  an exception.

{code}
org.apache.flink.api.table.ExpressionException: Could not parse expression: string matching regex `\z' expected but `.' found
        at org.apache.flink.api.table.parser.ExpressionParser$.parseExpressionList(ExpressionParser.scala:224)
{code}

However, the Scala implicit Table Expression API supports this.



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