On Wed, Jan 14, 2015 at 9:22 AM, Dean Rasheed <dean.a.rash...@gmail.com> wrote: > On 14 January 2015 at 13:29, Robert Haas <robertmh...@gmail.com> wrote: >> One thing they could still leak is the number of times they got >> called, and thus possibly the number of unseen rows. Now if the >> expressions get constant-folded away that won't be an issue, but a >> clever user can probably avoid that. > > Right now, EXPLAIN ANALYSE can be used to tell you the number of > unseen rows. Is that something that people are concerned about, and > are there any plans to change it?
Interesting question. I don't know. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
