```
$ echo '20210101,A' | clickhouse-local --input-format CSV --structure 'd Date, s String' --query "SELECT * FROM table"
Code: 27. DB::Exception: Cannot parse input: expected ',' before: '20210101,A\n': 
Row 1:
Column 0,   name: d, type: Date,   ERROR: text "20210101,A" is not like Date

: While executing ParallelParsingBlockInputFormat: While executing File. (CANNOT_PARSE_INPUT_ASSERTION_FAILED)
```

**How to solve**

Disambiguate while parsing by absense of separators between YYYY-MM-DD.
{
    if (!buf.eof())
    {
        x = *buf.position();
        ++buf.position();
    }
    else
        throwReadAfterEOF();
}
template <typename T>
inline void readPODBinary(T & x, ReadBuffer & buf)
{
    buf.readStrict(reinterpret_cast<char *>(&x), sizeof(x));
}
template <typename T>
inline void readIntBinary(T & x, ReadBuffer & buf)