**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.
case 'M':
            finish(1000000, 20);
            break;
        case 'G':
            finish(1000000000, 30);
            break;
        case 'T':
            finish(1000000000000ULL, 40);
            break;
        default:
            return;
    }
    return;
}
template <typename T>
inline T parseWithSizeSuffix(const char * data, size_t size)
{
    T res;
    ReadBufferFromMemory buf(data, size);
    readTextWithSizeSuffix(res, buf);
    assertEOF(buf);
    return res;
}
template <typename T>
inline T parseWithSizeSuffix(const std::string_view & s)
{
    return parseWithSizeSuffix<T>(s.data(), s.size());
}
template <typename T>
inline T parseWithSizeSuffix(const char * data)