cannot be converted from type 'varchar(6000(bytes))' to type 'mediumtext'

No se indican archivos de código fuente ni pruebas. Empieza comparando las dos definiciones de CREATE TABLE y el error de SHOW REPLICA STATUS; después, sigue cómo la replicación gestiona la discrepancia de varchar a mediumtext. Se considera terminado cuando la combinación de esquemas indicada ya no detiene la ejecución de SQL en la réplica.

show replica status\G
*************************** 1. row ***************************
Replica_IO_State: Waiting for source to send event
Source_Host: pcxxxxxxxxxxxxxxxxx.rwlb.rds.aliyuncs.com
Source_User: xxxxxxxxxx
Source_Port: 3306
Connect_Retry: 60
Source_Log_File: mysql-bin.037807
Read_Source_Log_Pos: 401105392
Relay_Log_File: mysql-relay-bin.000002
Relay_Log_Pos: 4956938
Relay_Source_Log_File: mysql-bin.037805
Replica_IO_Running: Yes
Replica_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table: xxxx.%
Replicate_Wild_Ignore_Table: xxxxx.tmp_%
Last_Errno: 13146
Last_Error: Column 4 of table 'xxxxx.branch_resource_param' cannot be converted from type 'varchar(6000(bytes))' to type 'mediumtext'
Skip_Counter: 0
Exec_Source_Log_Pos: 479728715
Relay_Log_Space: 971998423
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Source_SSL_Allowed: No
Source_SSL_CA_File:
Source_SSL_CA_Path:
Source_SSL_Cert:
Source_SSL_Cipher:
Source_SSL_Key:
Seconds_Behind_Source: NULL
Source_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 13146
Last_SQL_Error: Column 4 of table 'xxxxxxx.branch_resource_param' cannot be converted from type 'varchar(6000(bytes))' to type 'mediumtext'
Replicate_Ignore_Server_Ids:
Source_Server_Id: 35095752
Source_UUID: 73b43377-f5a5-11ef-bf36-08c0ebd508aa
Source_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Replica_SQL_Running_State:

show create table pos3_dyh.branch_resource_param\G
*************************** 1. row ***************************
Table: branch_resource_param
Create Table: CREATE TABLE branch_resource_param (
system_book_code varchar(20) NOT NULL,
branch_num int(11) NOT NULL,
branch_resource_name varchar(50) NOT NULL,
branch_resource_param_key varchar(200) NOT NULL,
branch_resource_param_val varchar(2000) DEFAULT NULL,
aged_timestamp datetime DEFAULT NULL,
PRIMARY KEY (system_book_code,branch_num,branch_resource_name,branch_resource_param_key)
) ENGINE=InnoDB DEFAULT CHARSET=utf8

CREATE TABLE branch_resource_param (
system_book_code varchar(20) NOT NULL,
branch_num int NOT NULL,
branch_resource_name varchar(50) NOT NULL,
branch_resource_param_key varchar(200) NOT NULL,
branch_resource_param_val text,
aged_timestamp datetime DEFAULT NULL,
PRIMARY KEY (system_book_code,branch_num,branch_resource_name,branch_resource_param_key)
) ENGINE=DUCKDB DEFAULT CHARSET=utf8mb3