On 2013-03-29 19:03:05 -0400, Tom Lane wrote: > Andres Freund <and...@2ndquadrant.com> writes: > > Those columns cannot be NULL, so using IS DISTINCT FROM seems a bit > > clumsy. > > That was what I started to write, too, but actually I think the IS > DISTINCT is correct and the RIGHT JOIN should be a LEFT JOIN. Note > that the query appears to be intended to collect regular tables as > well as indexes. (As patched, that's totally broken, so I infer > Bruce hasn't tested it yet.)
Ah yes. Then I'd actually find it much more readable to formulate it as a NOT EXISTS(), but that might be just me. Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, 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
