The MSSQLConnection class is accessible via the sqlobject.mssql.mssqlconnection module.
"\n select\n name,\n length,\n ( select name\n from systypes\n where cast(xusertype as int)= cast(sc.xtype as int)\n ) datatype,\n prec,\n scale,\n isnullable,\n cdefault,\n m.text default_text,\n isnull(len(autoval),0) is_identity\n from syscolumns sc\n LEFT OUTER JOIN syscomments m on sc.cdefault = m.id\n AND m.colid = 1\n where\n sc.id in (select id\n from sysobjects\n where name = '%s')\n order by\n colorder"
"\n select 1\n from INFORMATION_SCHEMA.COLUMNS\n where TABLE_NAME = '%s'\n and COLUMNPROPERTY(object_id(TABLE_NAME), COLUMN_NAME, 'IsIdentity') = 1\n "
Here we take raw values coming out of syscolumns and map to SQLObject class types.
See the source for more information.