**Describe the situation**
https://markify.dev/p/zfrQMV2/text

**How to reproduce**
On aws `c5ad.24xlarge` run a query:

```
SET max_memory_usage = '100G', max_threads = 1000, max_insert_threads = 96

INSERT INTO wikistat WITH
    parseDateTimeBestEffort(extract(toLowCardinality(_path), 'pageviews-([\\d\\-]+)\\.gz$')) AS time,
    splitByChar(' ', line) AS values,
    splitByChar('.', values[1]) AS projects
SELECT
    time,
    projects[1] AS project,
    projects[2] AS subproject,
    values[2] AS path,
    CAST(values[3], 'UInt64') AS hits
FROM s3('https://....s3.eu-central-1.amazonaws.com/wikistat/original/*.gz', '...', '...', LineAsString, auto)
WHERE length(values) >= 3
```

Performance is not bad (22 million rows are inserted per second) but can be better.
{
    using UnsignedT = make_unsigned_t<T>;
    static constexpr bool throw_exception = std::is_same_v<ReturnType, void>;
    bool negative = false;
    UnsignedT res{};
    if (buf.eof())
    {
        if constexpr (throw_exception)
            throwReadAfterEOF();
        else
            return ReturnType(false);
    }
    const size_t initial_pos = buf.count();
    bool has_sign = false;
    bool has_number = false;
    while (!buf.eof())
    {
        switch (*buf.position())
        {
            case '+':
            {
                
                if (has_number)
                    goto end;
                
                if (has_sign)
                {
                    if constexpr (throw_exception)