Simon Riggs <si...@2ndquadrant.com> writes:
> Solutions can also include
> * manual mechanism for setting ndistinct that doesn't keep getting
> overwritten by subsequent ANALYZEs

Hmm, that might actually be the most practical answer for large,
reasonably-static tables.  Especially if we expose the "negative
stadistinct" feature to let people specify it as a fraction of table
size.

                        regards, tom lane

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