**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.
{
    s.clear();
    if (buf.eof())
        return;
    
    
    
    
    
    
    
    if (*buf.position() == '\'')
    {
        s.push_back('\'');
        readQuotedStringInto<false>(s, buf);
        s.push_back('\'');
    }
    else if (*buf.position() == '[')
        readQuotedFieldInBrackets<'[', ']'>(s, buf);
    else if (*buf.position() == '(')
        readQuotedFieldInBrackets<'(', ')'>(s, buf);
    else if (*buf.position() == '{')
        readQuotedFieldInBrackets<'{', '}'>(s, buf);
    else if (checkCharCaseInsensitive('n', buf))
    {