Generic Query Plan Performance Cost

2015-10-21 Thread Tom Johnson
Hi all, We've been having problems with performance on all LDP requests for the past week or so, following the changes described in the quoted thread. I've tracked our current issue down to a quirk of PREPARE statements used by Kiwi when building Postgresql queries. In short, the use of PREPARE

Re: Generic Query Plan Performance Cost

2015-11-05 Thread Tom Johnson
e introducing it. See the post-upgrade notes on generic query plans[0] and our observations on index order[1] for more info. Best, Tom Johnson Metadata & Platform Architect Digital Public Library of America [0] https://digitalpubliclibraryofamerica.atlassian.net/wiki/display/TECH/Generic+Qu

Re: Generic Query Plan Performance Cost

2016-04-07 Thread Tom Johnson
s for your time, and for the work you all do. Best, Tom Johnson Metadata & Platform Architect Digital Public Library of America On Fri, Nov 6, 2015 at 3:17 AM, Sergio Fernández wrote: > Hi Tom, > > On Thu, Nov 5, 2015 at 6:12 PM, Tom Johnson wrote: >> >> We can con