Allow skipping some items in a multi-key GIN search. In a multi-key search, ie. something like "col @> 'foo' AND col @> 'bar'", as soon as we find the next item that matches the first criteria, we don't need to check the second criteria for TIDs smaller the first match. That saves a lot of effort, especially if one of the terms is rare, while the second occurs very frequently.
Based on ideas from Alexander Korotkov's fast scan patch. Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/e20c70cb0fa74d5bffa080e21a99b44bf0768667 Modified Files -------------- src/backend/access/gin/ginget.c | 460 +++++++++++++++++++++------------------ 1 file changed, 250 insertions(+), 210 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
