Description:
There is sybase15 database with table named SmallA and table named SmallA in VDB which is mapped to sybase table (see tables definition below).
I am trying to run query against VDB:
SELECT
INTKEY, STRINGKEY, INTNUM, STRINGNUM, FLOATNUM, LONGNUM, DOUBLENUM, BYTENUM, DATEVALUE, TIMEVALUE, TIMESTAMPVALUE, BOOLEANVALUE, CHARVALUE, SHORTVALUE, BIGINTEGERVALUE, BIGDECIMALVALUE
FROM
BQT1.SMALLA
GROUP BY
INTKEY, STRINGKEY, INTNUM, STRINGNUM, FLOATNUM, LONGNUM, DOUBLENUM, BYTENUM, DATEVALUE, TIMEVALUE, TIMESTAMPVALUE, BOOLEANVALUE, CHARVALUE, SHORTVALUE, BIGINTEGERVALUE, BIGDECIMALVALUE

Result is table which misses some values (the other values are OK):
FloatNum: always 0
ByteNum: always 0
DateValue: always 1900-01-01
TimeValue: always 00:00:00
BooleanValue: always 'false'
CharValue: always empty character
ShortValue: always 0
BigIntegerValue: always 0
BigDecimalValue: always 0

After removing 'INTKEY' and 'STRINGKEY' from the query is result OK (sybase15 has indices only for these two columns).

///////////////////
Table definition
///////////////////
SmallA (sybase) has these columns (name:type):
IntKey:int -> PRIMARY KEY, HAS INDEX
StringKey:varchar -> HAS INDEX
IntNum:int
StringNum:varchar
FloatNum:float
LongNum:numeric
DoubleNum:float
ByteNum:real
DateValue:datetime
TimeValue:datetime
TimestampValue:datetime
BooleanValue:tinyint
CharValue:char
ShortValue:numeric
BigIntegerValue:numeric
BigDecimalValue:numeric
ObjectValue:text

SmallA (VDB) has these columns (name:type):
IntKey:integer
StringKey:string
IntNum:integer
StringNum:string
FloatNum:float
LongNum:long
DoubleNum:double
ByteNum:byte
DateValue:date
TimeValue:time
TimestampValue:timestamp
BooleanValue:boolean
CharValue:char
ShortValue:short
BigIntegerValue:biginteger
BigDecimalValue:bigdecimal
ObjectValue:object