Hi- NOW does not get re-run for each document. If you give a large upload batch, the same NOW is given to each document.
It would be handy to have an auto-incrementing date field, so that each document would get a unique number and the timestamp would then be the unique ID of the document. On Sat, Oct 30, 2010 at 7:19 PM, Erick Erickson <erickerick...@gmail.com> wrote: > What are the actual values in your index? I'm wondering if they > all get the same values somehow, perhaps due to the granularity > of your dates? And (and I'm really grasping at straws here) your > <commit> is causing enough delay to have time intervals be greater > than your granularity. > > Unfortunately, that doesn't make much sense either. If you sort on a > field, the tiebreaker should be the document ID order absent secondary > sorts... > > So, can you post the results of adding &debugQuery=on to your URL? > Also, use the schema browser from the admin page to see what you > actually have in your index..... > > Not much help, but the best I can do this evening. > > Erick > > On Thu, Oct 28, 2010 at 9:58 PM, Michael Sokolov <soko...@ifactory.com>wrote: > >> (Sorry - fumble finger sent too soon.) >> >> >> My confusion stems from the fact that in my test I insert a number of >> documents, and then retrieve them ordered by timestamp, and they don't come >> back in the same order they were inserted (the order seems random), unless >> I >> commit after each insert. >> >> Is that expected? I could create my own timestamp values easily enough, >> but >> would just as soon not do so if I could use a pre-existing feature that >> seems tailor-made. >> >> -Mike >> >> > -----Original Message----- >> > From: Michael Sokolov [mailto:soko...@ifactory.com] >> > Sent: Thursday, October 28, 2010 9:55 PM >> > To: 'solr-user@lucene.apache.org' >> > Subject: Ensuring stable timestamp ordering >> > >> > I'm curious what if any guarantees there are regarding the >> > "timestamp" field that's defined in the sample solr >> > schema.xml. Just for completeness, the definition is: >> > >> >> <!-- Uncommenting the following will create a "timestamp" field using >> a default value of "NOW" to indicate when each document was indexed. >> --> >> <field name="timestamp" type="date" indexed="true" stored="true" >> default="NOW" multiValued="false"/> >> >> > -- Lance Norskog goks...@gmail.com
