90yangkang opened a new issue #16260:
URL: https://github.com/apache/shardingsphere/issues/16260


   client:navicat premium 12.1
   server:  shardingsphere proxy 5.1.0
   
   using Navicat as a tool, the shardingsphere proxy reports an error. Error 
message:
   
   [ERROR] 2022-03-22 13:27:46.984 [Connection-1-ThreadExecutor] 
o.a.s.p.f.c.CommandExecutorTask - Exception occur: 
   java.lang.UnsupportedOperationException: unsupported table : `TABLES`
        at 
org.apache.shardingsphere.proxy.backend.text.admin.mysql.MySQLInformationSchemaExecutorFactory.newInstance(MySQLInformationSchemaExecutorFactory.java:52)
        at 
org.apache.shardingsphere.proxy.backend.text.admin.mysql.MySQLAdminExecutorFactory.newInstance(MySQLAdminExecutorFactory.java:124)
        at 
org.apache.shardingsphere.proxy.backend.text.admin.DatabaseAdminBackendHandlerFactory.newInstance(DatabaseAdminBackendHandlerFactory.java:78)
        at 
org.apache.shardingsphere.proxy.backend.text.TextProtocolBackendHandlerFactory.newInstance(TextProtocolBackendHandlerFactory.java:96)
        at 
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.<init>(MySQLComQueryPacketExecutor.java:56)
        at 
org.apache.shardingsphere.proxy.frontend.mysql.command.MySQLCommandExecutorFactory.newInstance(MySQLCommandExecutorFactory.java:73)
        at 
org.apache.shardingsphere.proxy.frontend.mysql.command.MySQLCommandExecuteEngine.getCommandExecutor(MySQLCommandExecuteEngine.java:62)
        at 
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:94)
        at 
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:69)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:834)
   [ERROR] 2022-03-22 13:27:58.933 [Connection-1-ThreadExecutor] 
o.a.s.p.f.c.CommandExecutorTask - Exception occur: 
   java.lang.UnsupportedOperationException: unsupported table : `COLUMNS`
        at 
org.apache.shardingsphere.proxy.backend.text.admin.mysql.MySQLInformationSchemaExecutorFactory.newInstance(MySQLInformationSchemaExecutorFactory.java:52)
        at 
org.apache.shardingsphere.proxy.backend.text.admin.mysql.MySQLAdminExecutorFactory.newInstance(MySQLAdminExecutorFactory.java:124)
        at 
org.apache.shardingsphere.proxy.backend.text.admin.DatabaseAdminBackendHandlerFactory.newInstance(DatabaseAdminBackendHandlerFactory.java:78)
        at 
org.apache.shardingsphere.proxy.backend.text.TextProtocolBackendHandlerFactory.newInstance(TextProtocolBackendHandlerFactory.java:96)
        at 
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.<init>(MySQLComQueryPacketExecutor.java:56)
        at 
org.apache.shardingsphere.proxy.frontend.mysql.command.MySQLCommandExecutorFactory.newInstance(MySQLCommandExecutorFactory.java:73)
        at 
org.apache.shardingsphere.proxy.frontend.mysql.command.MySQLCommandExecuteEngine.getCommandExecutor(MySQLCommandExecuteEngine.java:62)
        at 
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:94)
        at 
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:69)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:834)
   
   
   
   When debugging , I saw this SQL :
   SELECT TABLE_SCHEMA, TABLE_NAME, TABLE_TYPE FROM information_schema.TABLES 
WHERE TABLE_SCHEMA = 'sharding_db' ORDER BY TABLE_SCHEMA, TABLE_TYPE
   
   **server.yml info:**
   rules:
    - !AUTHORITY
      users:
        - root@%:root
        - sharding@:sharding
      provider:
        type: ALL_PRIVILEGES_PERMITTED
    - !TRANSACTION
      defaultType: XA
      providerType: Atomikos
    - !SQL_PARSER
      sqlCommentParseEnabled: true
      sqlStatementCache:
        initialCapacity: 2000
        maximumSize: 65535
        concurrencyLevel: 4
      parseTreeCache:
        initialCapacity: 128
        maximumSize: 1024
        concurrencyLevel: 4
   
   props:
    max-connections-size-per-query: 1
    kernel-executor-size: 16  # Infinite by default.
    proxy-frontend-flush-threshold: 128  # The default value is 128.
    proxy-opentracing-enabled: false
    proxy-hint-enabled: true
    sql-show: true
    check-table-metadata-enabled: false
    show-process-list-enabled: false
      # Proxy backend query fetch size. A larger value may increase the memory 
usage of ShardingSphere Proxy.
      # The default value is -1, which means set the minimum value for 
different JDBC drivers.
    proxy-backend-query-fetch-size: -1
    check-duplicate-table-enabled: false
    proxy-frontend-executor-size: 0 # Proxy frontend executor size. The default 
value is 0, which means let Netty decide.
      # Available options of proxy backend executor suitable: OLAP(default), 
OLTP. The OLTP option may reduce time cost of writing packets to client, but it 
may increase the latency of SQL execution
      # and block other clients if client connections are more than 
`proxy-frontend-executor-size`, especially executing slow SQL.
    proxy-backend-executor-suitable: OLAP
    proxy-frontend-max-connections: 0 # Less than or equal to 0 means no 
limitation.
    sql-federation-enabled: false
      # Available proxy backend driver type: JDBC (default), ExperimentalVertx
    proxy-backend-driver-type: JDBC
   
   
   **config-sharding.yml info :**
   
   schemaName: sharding_db
   dataSources:
    demo_ds_0:
      url: 
      username: 
      password: 
      connectionTimeoutMilliseconds: 30000
      idleTimeoutMilliseconds: 60000
      maxLifetimeMilliseconds: 1800000
      maxPoolSize: 50
      minPoolSize: 1
    demo_ds_1:
      url:
      username: 
      password: 
      connectionTimeoutMilliseconds: 30000
      idleTimeoutMilliseconds: 60000
      maxLifetimeMilliseconds: 1800000
      maxPoolSize: 50
      minPoolSize: 1
   
   rules:
   - !SHARDING
    tables:
      goods:
        logicTable: goods
      t_order:
        logicTable: t_order
      t_user:
        logicTable: t_user
    defaultDatabaseStrategy:
      none:
    defaultTableStrategy:
      none:
   
   
   
   


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