I_Snap$ indexes

Question

In the past I have created all my read only snapshots (both in 7.3.4 and 8.1.6 databases) without qualifying the owner of the table on the remote database. We are upgrading our source database from 7.3.4 to 8.1.7. Now we MUST qualify the owner of the table in the remote db. This is ok, but now for every snapshot created, I get an I_snap$_<snapname> created automatically. It is a unique index created automatically in the "data" tablespace where the snap is being created. I have no control over it. If I don't qualify the source table name with the owner name, these extraneous indexes are not created. It does not make any difference if the db I am creating the snaps in is 8.1.6 or 7.3.4. As long as I specifiy the schema owner, the extra index is created.
Sample of old create script for snap in 8.1.6(no I_snap$ index created)
CREATE SNAPSHOT abc
STORAGE
INITIAL 100000
NEXT 30000
PCTINCREASE 0
MINEXTENTS 1
MAXEXTENTS 100
TABLESPACE DATA
REFRESH COMPLETE
WITH ROWID
AS
SELECT * from abc@latt
Sample of new create script for snap in 8.1.6 (I_snap$ index created)
CREATE SNAPSHOT abc
STORAGE
INITIAL 100000
NEXT 30000
PCTINCREASE 0
MINEXTENTS 1
MAXEXTENTS 100
TABLESPACE DATA
REFRESH COMPLETE
WITH ROWID
AS
SELECT * from ownername.abc@latt
I don't want these other indexes!

Answer 1

Hello Rafi,
I don't have any MLOG$_<table> in the database, After connecting as SYS -
SQL> select tname from tab where tname like '%MLOG%';
TNAME
MLOG_REFCOL$
MLOG$
C_MLOG#
SQL> select count(*) from mlog$;
COUNT(*)
0
I am not using Replication here -
SQL> select tname from tab where tname like '%RUPD%';
no rows selected
Why you think that granting SELECT access to MLOG$_* tables will solve this issue?
Thanks,
Roopesh