Mark I haven't posted the execution plan you've requested because I did it in my first e-mail select a ,b ,c ,per_ind from XXX_PER_YYY where per_ind = 0; ---------------------------------------------------------------------------------- | Id | Operation | Name | Starts | E-Rows | A-Rows | ---------------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 1 | |550K | | 1 | PARTITION RANGE ALL | | 1 | 69 |550K | | 2 | TABLE ACCESS BY LOCAL INDEX ROWID| XXX_PER_YYY | 111 | 69 |550K | |* 3 | INDEX RANGE SCAN | XXX_PER_IND | 111 | 69 |550K | ---------------------------------------------------------------------------------- Predicate Information (identified by operation id): --------------------------------------------------- 3 - access("PER_IND"=0) It is not exactly what you've requested but was this not sufficient? Best regards Mohamed 2013/10/2 Mark W. Farnham <mwf@xxxxxxxx> > I fail to understand why the --+ gather_plan_statistics execution of the > simple count I requested is not forthcoming. > > Now it does leave out the table access for the non-index columns, but it > should tell us a great deal about what the optimizer thinks is the cheapest > way to get the relevant rowids from all the partitions and the plan should > show what the CBO has estimated along with the actuals. > > Fragmentary revelation of the underlying facts (obscuring, for example, > that > a view was involved) does not make it easier for folks to help you explain > what you're asking about. > > Please try to make it easier. > > mwf > > -----Original Message----- > From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] > On Behalf Of Mohamed Houri > Sent: Wednesday, October 02, 2013 7:39 AM > To: Jonathan Lewis > Cc: ORACLE-L > Subject: Re: Statistics Problem on partitioned table > > Jonathan, > I am sorry I may have not been clear but there are in fact 721,699 and that > is what I showed above > > *select per_ind, count(1) cnt from XXX_PER_YYY group by per_ind;* > > 721,699 rows . > <snip> > > > -- Bien Respectueusement Mohamed Houri -- //www.freelists.org/webpage/oracle-l