By default it's set to 'choose' - but if try to use it for looking at locks (or most any ddl) it will take forever to come back - you have to go to the options menu and pick 'rule' for optimzer mode on ddl queries.

>>> [EMAIL PROTECTED] 10/28/2003 2:49:29 PM >>>
does the data dictionary still use rule by support? any idea why toad would bother slipping it in?
>
> From: "John Shaw" <[EMAIL PROTECTED]>
> Date: 2003/10/28 Tue PM 02:59:25 EST
> To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
> Subject: Re: ora-600 question
>
> TOAD puts a hint in.
>
> >>> [EMAIL PROTECTED] 10/28/2003 1:29:25 PM >>>
> does toad or the oracle instance itself slip in rule hints? We got an ora-600 error off of a data dictionary read. i think it has to do with explain plan.
>
> ORA-00600: internal error code, arguments: [17182], [2325084336], [], [], [], [], [], []
> Current SQL statement for this session:
> select /*+ rule */ bucket_cnt, row_cnt, cache_cnt, null_cnt, timestamp#, sample_size, minimum, maximum, distcnt, lowval, hiva
> l, density, col#, spare1, spare2, avgcln from hist_head$ where obj#=:1 and intcol#=:2
>
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