On May 30, 2001 03:21 pm, Jeremiah Wilton wrote:
> I have used compute statistics since version 7.3.2 up through
> 8.1.6, and never had it hold a table lock for the duration of the
> analyze. I don't know where people are getting the idea that
> compute statistics holds a lock and estimate doesn't. That just
> doesn't make sense. Why would compute need a lock? Are you saying
> I can estimate sample 99 percent, and get what amounts to a compute
> and avoid the supposed lock?
Any estimate over 50 will do a full compute. Doesn't require a lock
on the table, however.
Cheers,
GC
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Author: Gregory Conron
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