public Object convertByName(RowData row, String name) {
        Integer pos = getMetadataPosByName(name);
        return pos == null ? null : converters[pos].read(row, pos);
    }
Use for parse sink metadata by pos or name.
inlong-sort/sort-flink/sort-flink-v1.15/sort-connectors/iceberg/src/main/java/org/apache/inlong/sort/iceberg/utils/SinkMetadataUtils.java