Problem with Flashback transaction query in 10g

Question

Hello,
I'm having a problem when working with FLASHBACK_TRANSACTION_QUERY.
When I make a simple update of table PARTIES with some trigger (one transaction with XID=000300310027ACAA), expected result can be found in FLASBACK_TRANSACTION_QUERY:
select xid, start_scn, commit_scn, logon_user, undo_change#, operation, table_name, table_owner, undo_sql from flashback_transaction_query f
where xid = hextoraw('000300310027ACAA');
XID               START_SCN     COMMIT_SCN     LOGON_USER     UNDO_CHANGE#     OPERATION     TABLE_NAME          TABLE_OWNER     UNDO_SQL
000300310027ACAA     170337630398     170337630411     SYSTEM     1               UPDATE     PARTY_HIST_LOGS     ODS_OWNER          update ...
000300310027ACAA     170337630398     170337630411     SYSTEM     2               UPDATE     PARTIES          ODS_OWNER          update ...
000300310027ACAA     170337630398     170337630411     SYSTEM     3               BEGIN          null               null               null     
But after a while (cca 1 minute) all rows representing DML operations changes to one row with operation=UNKNOWN. And in the same time TABLE_OWNER, UNDO_SQL, ROW_ID is lost.
select xid, start_scn, commit_scn, logon_user, undo_change#, operation, table_name, table_owner, undo_sql from flashback_transaction_query f
where xid = hextoraw('000300310027ACAA');
XID     START_SCN     COMMIT_SCN     LOGON_USER     UNDO_CHANGE#     OPERATION     TABLE_NAME     TABLE_OWNER     UNDO_SQL
000300310027ACAA     170337630398     0     SYS     1     UNKNOWN     PARTIES     null          null               null
000300310027ACAA     170337630398     0     SYS     2     BEGIN          null          null          null               null
Do you have any explanations, why this happens?
Thanks a lot Filip
Here are some DB parameters:
Oracle 10g - 10.2.0.3.0 - 64bit Production
noarchive log mode
minimal supplemental logging enabled
UNDO_MANAGEMENT=AUTO
UNDO_RETENTION=57600
v$undostat.tuned_undoretention=345600
RETENTION GUARANTEE=YES

Answer 1

SELECT
o1.GRP_CODE
, o1.GRP_DESC
, o1.GRP_GROUP
, o1.GRP_KATEG
, o2.actual_amount
, o2.budg_amount
, o2.branch
FROM
vw_budget_codes o1 LEFT OUTER JOIN dw_fbudget_star o2 ON (o1.grp_code = o2.grp_code)
WHERE
o2.branch= '5455345'
Message was edited by:
TanteKaethe
Message was edited by:
TanteKaethe