**Use case**

Like `date_time_input_format = 'best_effort'` but with disambiguation to American mm/dd/yyyy style.

{
    writeChar('"', ostr);
    serializeText(column, row_num, ostr, settings);
    writeChar('"', ostr);
}
void SerializationDateTime64::deserializeTextCSV(IColumn & column, ReadBuffer & istr, const FormatSettings & settings) const
{
    DateTime64 x = 0;
    if (istr.eof())
        throwReadAfterEOF();
    char maybe_quote = *istr.position();
    if (maybe_quote == '\'' || maybe_quote == '\"')
        ++istr.position();
    readText(x, scale, istr, settings, time_zone, utc_time_zone);
    if (maybe_quote == '\'' || maybe_quote == '\"')
        assertChar(maybe_quote, istr);
    assert_cast<ColumnType &>(column).getData().push_back(x);
}
}