In this post, you’ll learn more about the MariaDB Error 1852 ER_ALTER_OPERATION_NOT_SUPPORTED_REASON_IGNORE with the details of the error message and why you receive this error
Maria DB Error Description
MariaDB Error 1852 – ER_ALTER_OPERATION_NOT_SUPPORTED_REASON_IGNORE with the sqlState HY000
Error Description for the MariaDB Error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON_IGNORE
Creating unique indexes with IGNORE requires COPY algorithm to remove duplicate rows