CREATE DATABASE slave_conversion_test;

CREATE TABLE slave_conversion_test.tab (

	id int(10) unsigned NOT NULL,

	data varchar(50),

	PRIMARY KEY(id)

);

INSERT INTO slave_conversion_test.tab (id, data) VALUES (1, 'str');

INSERT INTO slave_conversion_test.tab (id, data) VALUES (2147483647, 'str');

INSERT INTO slave_conversion_test.tab (id, data) VALUES (4294967295, 'str');

STOP SLAVE;

ALTER TABLE slave_conversion_test.tab MODIFY id BIGINT NOT NULL;

SET GLOBAL slave_type_conversions=ALL_NON_LOSSY;

START SLAVE;

UPDATE slave_conversion_test.tab SET data='newstr' WHERE id=2147483647;

UPDATE slave_conversion_test.tab SET data='newstr' WHERE id=4294967295;

MariaDB [(none)]> SELECT * FROM slave_conversion_test.tab;

+------------+--------+

| id         | data   |

+------------+--------+

|          1 | str    |

| 2147483647 | newstr |

| 4294967295 | str    |

+------------+--------+

3 rows in set (0.00 sec)

MariaDB [(none)]> SHOW SLAVE STATUS\G

*************************** 1. row ***************************

               Slave_IO_State: Waiting for master to send event

                  Master_Host: 192.168.1.65

                  Master_User: repl

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: mysqld-bin.000004

          Read_Master_Log_Pos: 1088

               Relay_Log_File: master-relay-bin.000005

                Relay_Log_Pos: 599

        Relay_Master_Log_File: mysqld-bin.000004

             Slave_IO_Running: Yes

            Slave_SQL_Running: No

              Replicate_Do_DB: 

          Replicate_Ignore_DB: 

           Replicate_Do_Table: 

       Replicate_Ignore_Table: 

      Replicate_Wild_Do_Table: 

  Replicate_Wild_Ignore_Table: 

                   Last_Errno: 1032

                   Last_Error: Could not execute Update_rows_v1 event on table slave_conversion_test.tab; Can't find record in 'tab', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master log mysqld-bin.000004, end_log_pos 1061

                 Skip_Counter: 0

          Exec_Master_Log_Pos: 884

              Relay_Log_Space: 1821

              Until_Condition: None

               Until_Log_File: 

                Until_Log_Pos: 0

           Master_SSL_Allowed: No

           Master_SSL_CA_File: 

           Master_SSL_CA_Path: 

              Master_SSL_Cert: 

            Master_SSL_Cipher: 

               Master_SSL_Key: 

        Seconds_Behind_Master: NULL

Master_SSL_Verify_Server_Cert: No

                Last_IO_Errno: 0

                Last_IO_Error: 

               Last_SQL_Errno: 1032

               Last_SQL_Error: Could not execute Update_rows_v1 event on table slave_conversion_test.tab; Can't find record in 'tab', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master log mysqld-bin.000004, end_log_pos 1061

  Replicate_Ignore_Server_Ids: 

             Master_Server_Id: 3

               Master_SSL_Crl: 

           Master_SSL_Crlpath: 

                   Using_Gtid: No

                  Gtid_IO_Pos: 

1 row in set (0.00 sec)