Jorgen Loland a écrit, Le 18.01.2011 16:09:
> Hi Guilhem,
> On 01/17/2011 09:41 PM, Guilhem Bichot wrote:
>>> + /** + Used by optimizer tracing if this is a subquery: Whether or not
>> Do you really mean "subquery"? for DYNAMIC_RANGE?
> Oops... malfunctioning brain :-) How about
> Used for QS_DYNAMIC_RANGE, i.e., "Range checked for each record".
> Used by optimizer tracing to decide whether or not dynamic range
> analysis for this select has been traced already. If optimizer
> trace option DYNAMIC_RANGE is enabled, range analysis will be
> traced with different ranges for every record to the left of this
> table in the join. If disabled, range analysis will only be traced
> for the first range.