How to define "leading" random number in Infoset fpr parallel processing

Hello,
in Bankanalyzer we use an Infoset which consists of a selection across 4 ODS tables to gather data.
No matter which PACKNO fields we check or uncheck in the infoset definition screen (TA RSISET), the parallel frameworks always selects the same PACKNO field from one ODS table.
Unfortunately, the table that is selected by the framework is not suitable, because our
"leading" ODS table which holds most of our selection criteria is another one.
How to "convince" the parallel framework to select our leading table for the specification
of the PACKNO in addition (this would be times 20 faster due to better select options).
We even tried to assign "alternate characteristics" to the packnos we do not liek to use,
but it seems that note 999101 just fixes this for non-system-fields.
But for the random number a diffrent form routine is used in /BA1/LF3_OBJ_INDEX_READF01
fill_range_random instead of fill_range.
Has anyone managed to assign the PACKNO of his choice to the infoset selection?
How?
Thanks in advance
Volker

Well, it is a bit more complicated
ODS one, that the parallel framework selects for being the one to deliver the PACKNO
is about equal in size (~120GB each) to ODS two which has two significant field which cuts down the
amount of data to be retreived.
Currently we execute the generated SQL in the best possible manner (by faking some stats )
The problem is, that I'd like to have a Statement that has the PACKNO in the very same table.
PACKNO is a generated random number esp. to be used for parallel processing.
The job starts about 100 slaves
Each slave gets a packet to be processed from the framework, which is internaly represented
by a BETWEEN clause on this PACKNO. This is joined against ODS2 and then the selective fields
can be compared resultin in 90% of the already fetched rowes can be discarded.
Basicly it goes like
select ...
from
ods1 T_00,
ods2 T_01,
ods3 T_02,
ods4 T_03
where
... some key equivalence join-conditions ...
AND T_00.PACKNO BETWEEN '000000' and '000050' -- very selective on T_00
AND T_01.TYPE = '202' -- selective Value 10% on second table
I'd trying to change this to
AND T_01.PACKNO BETWEEN '000000' and '000050'
AND T_01.TYPE = '202' -- selective Value 10%
so I can use a combined Index on T_01 (TYPE;PACKNO)
This would be times 10 more selective on the driving table and due to the fact,
that T_00 would be joined for just the rows I need, about a calculated time 20-30 faster.
It really boosts when I do this in sqlplus
Hope this clearyfies a bit.
Problem is, that I can not change the code either for doing the
build of the packets or the one that executes the application.
I need to change the Inofset, so that the framework decides to build
proper SQL with T_01.PACKNO instead of T_00.PACKNO.
Thanks a lot
Volker

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