What do I do if garbled characters cannot be written into OceanBase Database V3.1.2?

Symptom

During data migration, garbled characters cannot be written into OceanBase Database V3.1.2.

Solution

1. Log on to the sys tenant from OceanBase Client (OBClient).

   obclient -h host IP address -P port number -u username -p 'password' -D default database -Ac --prompt "OceanBase(\u@\d)> "
   

2. Execute the following statement to set the value of _enable_static_typing_engine to false:

   ALTER SYSTEM SET _enable_static_typing_engine = false;