[GitHub] [incubator-shardingsphere] nevereverever commented on issue #5189: Does it have cancel request function？

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nevereverever commented on issue #5189: Does it have cancel request function？
URL: https://github.com/apache/incubator-shardingsphere/issues/5189#issuecomment-613840725
 
 
   order by string cannot cancel request,I just found out this bug is fixed by tuohai666,I haven't tried yet.But cancel request is not normal yet.
   
   I debug the code,I find that navicat cancel request by using the SQL(type is COM_QUERY) which is "kill 1".   
   error code:
   ```java
   line 1:0 no viable alternative at input 'KILL'
   line 1:0 mismatched input 'KILL' expecting {SELECT, INSERT, UPDATE, DELETE, CREATE, ALTER, DROP, TRUNCATE, GRANT, REVOKE, SET, WITH, DESC, BEGIN, COMMIT, ROLLBACK, SAVEPOINT, CALL, USE, DESCRIBE, SHOW, REPLACE, START, RENAME}
   [ERROR] 14:08:37.435 [ShardingSphere-Command-13] o.a.s.s.f.c.CommandExecutorTask - Exception occur: 
   org.apache.shardingsphere.sql.parser.exception.SQLParsingException: Unsupported SQL of `KILL 1`
   	at org.apache.shardingsphere.sql.parser.core.parser.SQLParserEngine.parse(SQLParserEngine.java:73)
   	at org.apache.shardingsphere.sql.parser.core.SQLParseKernel.parse(SQLParseKernel.java:58)
   	at org.apache.shardingsphere.shardingproxy.backend.text.TextProtocolBackendHandlerFactory.newInstance(TextProtocolBackendHandlerFactory.java:70)
   	at org.apache.shardingsphere.shardingproxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.<init>(MySQLComQueryPacketExecutor.java:65)
   	at org.apache.shardingsphere.shardingproxy.frontend.mysql.command.MySQLCommandExecutorFactory.newInstance(MySQLCommandExecutorFactory.java:72)
   	at org.apache.shardingsphere.shardingproxy.frontend.mysql.command.MySQLCommandExecuteEngine.getCommandExecutor(MySQLCommandExecuteEngine.java:60)
   	at org.apache.shardingsphere.shardingproxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:91)
   	at org.apache.shardingsphere.shardingproxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:72)
   	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   	at java.lang.Thread.run(Thread.java:748)
   ```
   
   Hope to help you.THK.

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