On 2013-03-06 09:11:38 +0530, abhinav batra wrote: > Hey > I want to work towards the follwing feature in TODO list: > Prevent index uniqueness checks when UPDATE does not modify the > columnUniqueness > (index) checks are done when updating a column even if the column is not > modified by the UPDATE. However, HOT already short-circuits this in common > cases, so more work might not be helpful.
I'd be interested in something slightly related that is doing HOT on a per-index basis. Currently we don't do hot if any index is updated even though quite possibly most of the indexes don't change. I think that might result in some quite nice speedups... 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
