On Tue, Feb 18, 2014 at 5:50 PM, Alvaro Herrera <alvhe...@2ndquadrant.com> wrote: > Peter Geoghegan wrote: >> I've had multiple complaints of apparent data loss on 9.3.2 customer >> databases. There are 2 total, both complaints from the past week, one >> of which I was able to confirm. The customer's complaint is that >> certain rows are either visible or invisible, depending on whether an >> index scan is used or a sequential scan (I confirmed this with an >> EXPLAIN ANALYZE). > > The multixact bugs would cause tuples to be hidden at the heap level. > If the tuples are visible in a seqscan, then these are more likely to be > related to index problems, not multixact problem.
I guess I wasn't clear enough here: The row in question was visible with a sequential scans but *not* with an index scan. So you have it backwards here (understandably). -- Peter Geoghegan -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers