Function SQLColAttributeW 

pub unsafe extern "C" fn SQLColAttributeW(
    hstmt: SQLHSTMT,
    iCol: SQLUSMALLINT,
    iField: SQLUSMALLINT,
    pCharAttr: SQLPOINTER,
    cbCharAttrMax: SQLSMALLINT,
    pcbCharAttr: *mut SQLSMALLINT,
    pNumAttr: SQLPOINTER,
) -> SQLRETURN