It seems MaterializeMySQL doesn't support Decimal data type when doing replication.
break;
                    }
                    case MYSQL_TYPE_INT24: {
                        Int32 val = 0;
                        payload.readStrict(reinterpret_cast<char *>(&val), 3);
                        row.push_back(Field{Int32{val}});
                        break;
                    }
                    case MYSQL_TYPE_LONG: {
                        UInt32 val = 0;
                        payload.readStrict(reinterpret_cast<char *>(&val), 4);
                        row.push_back(Field{UInt32{val}});
                        break;
                    }
                    case MYSQL_TYPE_LONGLONG: {
                        UInt64 val = 0;
                        payload.readStrict(reinterpret_cast<char *>(&val), 8);
                        row.push_back(Field{UInt64{val}});
                        break;
                    }
                    case MYSQL_TYPE_FLOAT: {
                        Float32 val = 0;
                        payload.readStrict(reinterpret_cast<char *>(&val), 4);
                        row.push_back(Field{Float32{val}});
                        break;
                    }
                    case MYSQL_TYPE_DOUBLE: {
                        Float64 val = 0;
                        payload.readStrict(reinterpret_cast<char *>(&val), 8);
                        row.push_back(Field{Float64{val}});