>>>>> "Andres" == Andres Freund <and...@anarazel.de> writes:
Andres> * Abbreviated key support for Datum sorts Andres> Unfortunately the discussion about potential performance Andres> regression has been largely sidestepped by bickering over Andres> minutiae. Andres> => ? There isn't a "potential performance regression" that is in any respect different from the already-committed changes for non-Datum sorts. Also as I've pointed out, it's not even clear that there is a regression at all, since I've already shown that changes of several percent in timings of sort operations can be caused by irrelevant noise factors. To actually show a performance regression of less than 10% or so would require, at a minimum, showing two different timings using the same data and the same binary, though even that is subject to noise; to really prove it you'd have to show a statistically significant difference between sets of binaries with random padding sizes (see the graph I posted on this point). -- Andrew (irc:RhodiumToad) -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
