ALTER IGNORE TABLE acm_audit_log MODIFY COLUMN cm_audit_description VARCHAR(1024) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL; ALTER IGNORE TABLE acm_audit_log MODIFY COLUMN cm_audit_description VARCHAR(1024) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci; ALTER IGNORE TABLE acm_audit_log MODIFY COLUMN cm_diff_details_json LONGTEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;