On Wed, Nov 27, 2019 at 04:09:57PM -0500, Robert Haas wrote: > Yeah, I like #3 too. If we're going to the trouble to build all of > this mechanism, it seems worth it to build the additional machinery to > be precise about the difference between "looks like a problem" and "we > don't know".
Indeed, #3 sounds like a sensible way of doing things. The two others may cause random problems which are harder to actually detect and act on as we should avoid as much as possible a forced system-wide REINDEX after an upgrade to a post-13 PG. -- Michael
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