On Mon, Oct 18, 2021 at 05:15:59PM -0300, Euler Taveira wrote: > I agree that it might surprise an user and it would be good to document it. > However, it does not belong to the description. I would add it to the Notes > section at the end of the ALTER TABLE page.
No objections to the suggested addition and the location of the addition (paragraph of SET DATA TYPE rather than "Notes"), but I think that the phrasing could be better: "The column's statistics are removed, hence a follow-up ANALYZE is suited to update the statistics to the new column type." -- Michael
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