On Thu, Feb 18, 2016 at 4:15 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Because they've been removed from the right-link/left-link chains.
That isn't the same thing as being inaccessible by scans, clearly (just what you call the "leaf scan sequence"). Besides, half-dead pages still have right-link/left-link chains, and there are usage patterns where half-dead pages might accumulate. -- Peter Geoghegan -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
