Re: suggestions developing a multi-version concurrency control (MVCC) mechanism

2012-05-29 Thread Lance Norskog
Solr uses a flat schema. You can store old versions, but you have to encode them somehow and save them as data. On Tue, May 29, 2012 at 7:20 AM, Nicholas Ball wrote: > > Hmmm interesting, that will definitely work and may be the way to go. > Ideally, I'd rather store the older versions within a f

Re: suggestions developing a multi-version concurrency control (MVCC) mechanism

2012-05-29 Thread Nicholas Ball
Hmmm interesting, that will definitely work and may be the way to go. Ideally, I'd rather store the older versions within a field of the newest if possible. Can one create a custom field that holds other objects? Nick On Mon, 28 May 2012 17:07:06 -0700, Lance Norskog wrote: > You can use the do

Re: suggestions developing a multi-version concurrency control (MVCC) mechanism

2012-05-28 Thread Lance Norskog
You can use the document id and timestamp as a compound unique id. Then the search would also sort by id, then by timestamp. Result grouping might let you pick the most recent document from each of the sorted docs. On Mon, May 28, 2012 at 3:15 PM, Nicholas Ball wrote: > > Hello all, > > For the f