Kevin Grittner wrote: > On Tue, May 24, 2016 at 12:00 PM, Andres Freund <and...@anarazel.de> wrote: > > > Analyze IIRC acquires a new snapshot when getting sample rows, > > I could not find anything like that, and a case-insensitive search > of analyze.c finds no occurrences of "snap". Can you remember > where you think you saw something that would cause the ANALYZE > command in my test to use a snapshot other than the one from the > REPEATABLE READ transaction in which it was run?
For ANALYZE, the snapshot is set in vacuum() prior to calling analyze_rel(); see vacuum.c. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
