@Override
    protected List<InLongMsgBody> parseBodyList(byte[] bytes) throws Exception {
        return InLongMsgTlogKvUtils.parseBody(
                bytes,
                charset,
                delimiter,
                entryDelimiter,
                kvDelimiter,
                escapeChar,
                quoteChar, lineDelimiter, isDeleteEscapeChar);
    }
The literal represented null values, default "".
inlong-sort/sort-formats/format-rowdata/format-inlongmsg-rowdata-tlogkv/src/main/java/org/apache/inlong/sort/formats/inlongmsgtlogkv/InLongMsgTlogKvFormatDeserializer.java