Tom Lane wrote: > So: I put the blame on the fact that summarize_range() thinks that > the tuple offset it has for the placeholder tuple is guaranteed to > hold good, even across possibly-long intervals where it's holding > no lock on the containing buffer.
Yeah, I think this is a pretty reasonable explanation for the problem. I don't understand why it doesn't fail in 9.6. > Fixing this without creating new problems is beyond my familiarity > with the BRIN code. It looks like it might be nontrivial :-( Looking. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers