SQLDescribeCol returns 0 for decimal digits for datetime types with microseconds

https://docs.microsoft.com/en-us/sql/odbc/reference/appendixes/decimal-digits?view=sql-server-2017 says, that "All datetime types except SQL_TYPE_DATE, and all interval types with a seconds component" it has to be "The number of digits to the right of the decimal point in the seconds part of the value (fractional seconds)"