[jira] [Created] (FLINK-22998) Flink SQL does not support block comment before SET command

Posted by Shang Yuanchun (Jira) on Jun 15, 2021; 10:45am
URL: http://deprecated-apache-flink-mailing-list-archive.368.s1.nabble.com/jira-Created-FLINK-22998-Flink-SQL-does-not-support-block-comment-before-SET-command-tp51388.html

Zhiwen Sun created FLINK-22998:
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             Summary: Flink SQL does not support block comment before SET command
                 Key: FLINK-22998
                 URL: https://issues.apache.org/jira/browse/FLINK-22998
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Planner
    Affects Versions: 1.14.0
            Reporter: Zhiwen Sun


Flink SQL does not support block comment before SET command.

A tiny SQL that produces the bug:

 
{code:java}
/**
 comment
**/
SET sql-client.execution.result-mode=TABLEAU;
SELECT 'hello';{code}
 

while following SQL works fine:

 
{code:java}
SET sql-client.execution.result-mode=TABLEAU;
/**
 comment
**/
SELECT 'hello';{code}
 

 

After I debug Flink source code, I found that EXTENDED_PARSER does not support block comment.

 

 



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