Craig James <craig_james(at)emolecules(dot)com> writes:
> If I do:
> begin;
> update some_table set foo = newvalue where a_bunch_of_rows_are_changed;
> analyze some_table;
> rollback;
> does it roll back the statistics? (I think the answer is yes, but I need to be sure.)
Yes --- ANALYZE doesn't do anything magic, just a plain UPDATE of those
rows. (You could have easily tested this for yourself...)
regards, tom lane