Em Sex, 2013-04-12 às 10:58 -0400, Tom Lane escreveu: > Robert Haas <robertmh...@gmail.com> writes: > > On Thu, Apr 11, 2013 at 1:25 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: > >> The plan I'm considering is to get this written and committed to HEAD > >> in the next week, so that it can go out in 9.3beta1. After the patch > >> has survived a reasonable amount of beta testing, I'd be more comfortable > >> about back-patching into 9.2. > > > I'm not very sanguine about the chances that back-patching this won't > > provoke any screams of agony ... but I don't have a better idea, > > either. Letting queries return wrong answers isn't a superior > > solution, for sure. > > The only alternative I can see is to make a back-patch that just teaches > get_eclass_for_sort_expr() to compute valid nullable_relids for the sort > expression.
In my tests, after ANALYZE _bug_header and _bug_line, the query plan changes and query results returns as expected. Is this a chance that things isn't too bad? []s -- Dickson S. Guedes mail/xmpp: gue...@guedesoft.net - skype: guediz http://guedesoft.net - http://www.postgresql.org.br http://www.rnp.br/keyserver/pks/lookup?search=0x8F3E3C06D428D10A
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