I also think that since those indexes are created by
Oracle, Oracle knows them.
I'll trace the dbms_stats and I'll look for the
'bitand(flag,NNNN)'
- Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk> a
écrit : > It would make sense,
>
> I would expect Oracle to take a shortcut
> with LOB Indexes, simply hard-coding the
> fact that access to the LOB should always
> be via the LOB index. Consequently there
> would be no point in thinking about them
>
> You could run SQL_TRACE prior to the
> dbms_stats call, and see if there is a
> 'bitand(flag,NNNN)' line in the query that
> identifies indexes that excludes LOB indexes.
>
>
>
> Jonathan Lewis
> http://www.jlcomp.demon.co.uk
>
> Author of:
> Practical Oracle 8i: Building Efficient Databases
>
> Next Seminar - Australia - July/August
> http://www.jlcomp.demon.co.uk/seminar.html
>
> Host to The Co-Operative Oracle Users' FAQ
> http://www.jlcomp.demon.co.uk/faq/ind_faq.html
>
>
>
> -----Original Message-----
> To: Multiple recipients of list ORACLE-L
> <ORACLE-L_at_fatcity.com>
> Date: 23 April 2002 22:52
>
>
> I've hit bug 1499329
>
> As a workaround, I'm analysing the tables in the
> staging environment then I'm doing an exchange
> partition.
>
> I can analyse the tables/indexes without problem in
> the staging environment.
> My question is when creating a clob, Oracle creates
> a
> sys_...$$ indexes. When analysing the schema, those
> sys_...$$ indexes do not have any statistics. Is
> that
> normal ?
>
> TIA
>
>
> --
> Please see the official ORACLE-L FAQ:
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> --
> Author: Jonathan Lewis
> INET: jonathan_at_jlcomp.demon.co.uk
>
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Stéphane Paquette
DBA Oracle, consultant entrepôt de données
Oracle DBA, datawarehouse consultant
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Received on Wed Apr 24 2002 - 09:58:42 CDT