Re: Is this an bug in Oracle's SQL compiler

Jonathan Lewis wrote:
>
> One of the columns that can be reported from the
> PLAN_TABLE is the object_instance. When the
> same object appears multiple times, this numbers
> the occurrences, so you can get some idea of
> how Oracle has re-ordered the tables to execute
> the query.
>
> --
> Jonathan Lewis
> Yet another Oracle-related web site: http://www.jlcomp.demon.co.uk
>
> Practical Oracle 8i: Building Efficient Databases
>
> Publishers: Addison-Wesley
> See a first review at:
> http://www.ixora.com.au/resources/index.htm#practical_8i
> More reviews at: http://www.jlcomp.demon.co.uk/book_rev.html
>
> Mike Burden wrote in message <94msf1$qp4$1_at_taliesin2.netcom.net.uk>...
> >1) I've fully qualified all the columns and it made no difference.
> >2) Do you mean my plan table is out of date or that you need more
> >information from the plan table? The alias name would be useful but I can't
> >see a reference to this.
> >

I've seen a number of idiosyncracies associated with either of the "new" access paths - INDEX DESC and/or MIN/MAX

Bummer in both cases because you encounter the MIN-MAX bug so you revert the INDEX_DESC hint with rownum = 1 and sometimes you get the same grief...

-- 
===========================================
Connor McDonald
http://www.oracledba.co.uk (mirrored at
http://www.oradba.freeserve.co.uk)

"Some days you're the pigeon, some days you're the statue"