Re: WIP: collect frequency statistics for arrays
Alexander Korotkov <aekorotkov@gmail.com>
From: Alexander Korotkov <aekorotkov@gmail.com>
To: Nathan Boley <npboley@gmail.com>, Robert Haas <robertmhaas@gmail.com>, Bruce Momjian <bruce@momjian.us>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2011-10-15T15:13:51Z
Lists: pgsql-hackers
Attachments
- arrayanalyze-0.5.patch.gz (application/x-gzip) patch
Hi! Thanks for your attention to my patch! On Sat, Oct 15, 2011 at 2:47 PM, Nathan Boley <npboley@gmail.com> wrote: > > Looking now, I see that Alexander wasn't Cc'd on the review, so it's > > possible he missed the message? > > > > We've corresponded off list and have discussed my review at some length. > > Alex submitted an updated patch on Sep 22 to me personally ( although > not to the list? Alex? ), with the promise of a new version with > improved comments. > Oh, I didn't noticed that I've posted updated patch off-list. So, there is repost of that version of patch. List of changes is below: 1) Distinct slot is used for length histogram. 2) Standard statistics is collected for arrays. 3) Most common values and most common elements are mapped to distinct columns of pg_stats view, because both of them are calculated for arrays. Now, it's hard for me to give to it as much time as I would like to. But I hope to present improved comments and testing until end of october. ------ With best regards, Alexander Korotkov.