zhangjianleittntty opened a new issue, #22869:
URL: https://github.com/apache/shardingsphere/issues/22869

   1.The shardingsphere-proxy application was started.
   2.Mysql was connection to shardingsphere-proxy.
   3.SQL: Insert and Update its went to processor sharding operation.
   4.Question: The data transfer is from old table to multi-tables. The DistSQL 
exection is error.
   
      **(1)**>mysql> ADD RESOURCE resource_1 (
       -> 
URL=jdbc:mysql://127.0.0.1:3310/orderweek_0?serverTimezone=UTC&useSSL=false,
       -> USER=root,
       -> PASSWORD=12345678,
       -> PROPERTIES(maximumPoolSize=10,idleTimeout=30000));
       **Result:** 
           > You have an error in your SQL syntax: ADD RESOURCE 
resource_1..........
       **(2)**mysql> REGISTER STORAGE UNIT ds_2 (
       ->     
URL="jdbc:mysql://127.0.0.1:3310/orderweek_0?serverTimezone=UTC&useSSL=false",
       ->     USER="root",
       ->     PASSWORD="12345678",
       ->     
PROPERTIES("minPoolSize"="1","maxPoolSize"="20","idleTimeout"="60000")
       -> );
       **Result:**
            >You have an error in your SQL syntax: REGISTER STORAGE UNIT 
ds_2..........
         **(3)**mysql> MIGRATE TABLE ds_2.order_info INTO order_info;
       **Result:**
            >ERROR 30000 (HY000): Unknown exception: null
   
   


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