strongduanmu opened a new issue #11868:
URL: https://github.com/apache/shardingsphere/issues/11868
## Bug Report
### Which version of ShardingSphere did you use?
master branch
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-Proxy
### Expected behavior
No exception occur when connecting to Proxy
### Actual behavior
```
[ERROR] 2021-08-18 09:25:42.467 [ShardingSphere-Command-0]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table
'demo_ds_0.t_order_federate' doesn't exist
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.Util.getInstance(Util.java:408)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:944)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3978)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3914)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2491)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2449)
at com.mysql.jdbc.StatementImpl.executeInternal(StatementImpl.java:845)
at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:939)
at
com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:103)
at
com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java)
at
org.apache.shardingsphere.proxy.backend.communication.jdbc.executor.callback.impl.ProxyStatementExecutorCallback.execute(ProxyStatementExecutorCallback.java:40)
at
org.apache.shardingsphere.proxy.backend.communication.jdbc.executor.callback.ProxyJDBCExecutorCallback.executeSQL(ProxyJDBCExecutorCallback.java:73)
at
org.apache.shardingsphere.proxy.backend.communication.jdbc.executor.callback.ProxyJDBCExecutorCallback.executeSQL(ProxyJDBCExecutorCallback.java:66)
at
org.apache.shardingsphere.proxy.backend.communication.jdbc.executor.callback.ProxyJDBCExecutorCallback.executeSQL(ProxyJDBCExecutorCallback.java:44)
at
org.apache.shardingsphere.infra.executor.sql.execute.engine.driver.jdbc.JDBCExecutorCallback.execute(JDBCExecutorCallback.java:85)
at
org.apache.shardingsphere.infra.executor.sql.execute.engine.driver.jdbc.JDBCExecutorCallback.execute(JDBCExecutorCallback.java:64)
at
org.apache.shardingsphere.infra.executor.kernel.ExecutorEngine.syncExecute(ExecutorEngine.java:101)
at
org.apache.shardingsphere.infra.executor.kernel.ExecutorEngine.parallelExecute(ExecutorEngine.java:97)
at
org.apache.shardingsphere.infra.executor.kernel.ExecutorEngine.execute(ExecutorEngine.java:82)
at
org.apache.shardingsphere.infra.executor.sql.execute.engine.driver.jdbc.JDBCExecutor.execute(JDBCExecutor.java:65)
at
org.apache.shardingsphere.proxy.backend.communication.jdbc.executor.ProxyJDBCExecutor.execute(ProxyJDBCExecutor.java:71)
at
org.apache.shardingsphere.proxy.backend.communication.ProxySQLExecutor.useDriverToExecute(ProxySQLExecutor.java:184)
at
org.apache.shardingsphere.proxy.backend.communication.ProxySQLExecutor.execute(ProxySQLExecutor.java:137)
at
org.apache.shardingsphere.proxy.backend.communication.ProxySQLExecutor.execute(ProxySQLExecutor.java:126)
at
org.apache.shardingsphere.proxy.backend.communication.ProxyLockEngine.doExecute(ProxyLockEngine.java:103)
at
org.apache.shardingsphere.proxy.backend.communication.ProxyLockEngine.execute(ProxyLockEngine.java:81)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:126)
at
org.apache.shardingsphere.proxy.backend.text.data.impl.UnicastDatabaseBackendHandler.execute(UnicastDatabaseBackendHandler.java:57)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:57)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:98)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:72)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
[INFO ] 2021-08-18 09:25:42.469 [ShardingSphere-Command-1]
ShardingSphere-SQL - Logic SQL: SET NAMES utf8mb4
[INFO ] 2021-08-18 09:25:42.469 [ShardingSphere-Command-1]
ShardingSphere-SQL - SQLStatement: MySQLSetStatement()
[INFO ] 2021-08-18 09:25:42.469 [ShardingSphere-Command-1]
ShardingSphere-SQL - Actual SQL: ds_0 ::: SET NAMES utf8mb4
[INFO ] 2021-08-18 09:25:42.469 [ShardingSphere-Command-1]
ShardingSphere-SQL - Actual SQL: ds_1 ::: SET NAMES utf8mb4
[INFO ] 2021-08-18 09:25:42.477 [ShardingSphere-Command-1]
ShardingSphere-SQL - Logic SQL: SET SESSION TRANSACTION ISOLATION LEVEL READ
COMMITTED
[INFO ] 2021-08-18 09:25:42.477 [ShardingSphere-Command-1]
ShardingSphere-SQL - SQLStatement:
MySQLSetTransactionStatement(isolationLevel=null, scope=null, accessMode=null)
[INFO ] 2021-08-18 09:25:42.477 [ShardingSphere-Command-1]
ShardingSphere-SQL - Actual SQL: ds_0 ::: SET SESSION TRANSACTION ISOLATION
LEVEL READ COMMITTED
[INFO ] 2021-08-18 09:25:42.477 [ShardingSphere-Command-1]
ShardingSphere-SQL - Actual SQL: ds_1 ::: SET SESSION TRANSACTION ISOLATION
LEVEL READ COMMITTED
[INFO ] 2021-08-18 09:25:42.484 [ShardingSphere-Command-1]
ShardingSphere-SQL - Logic SQL: SET sql_mode=(SELECT
REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''))
[INFO ] 2021-08-18 09:25:42.484 [ShardingSphere-Command-1]
ShardingSphere-SQL - SQLStatement: MySQLSetStatement()
[INFO ] 2021-08-18 09:25:42.484 [ShardingSphere-Command-1]
ShardingSphere-SQL - Actual SQL: ds_0 ::: SET sql_mode=(SELECT
REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''))
[INFO ] 2021-08-18 09:25:42.484 [ShardingSphere-Command-1]
ShardingSphere-SQL - Actual SQL: ds_1 ::: SET sql_mode=(SELECT
REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''))
```
### Reason analyze (If you can)
The mysql protocol converts `t_order_FEDERATE` to `t_order_federate`,
causing an exception to be thrown during execution.
### Steps to reproduce the behavior, such as: SQL to execute, sharding rule
configuration, when exception occur etc.
Create a table with an uppercase table name in the database, and then write
a program to connect to Proxy.
The program can refer to issues #11757.
### Example codes for reproduce this issue (such as a github link).
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