Re: conditional sorting
: I tried to simplify the problem, but the point is that I could have : really: complex requirements. For instance, if in the first 5 results : none are older than one year, use sort by X, otherwise sort by Y. First 5 in what order? X? Y or something else? : So, the question is, is there a way to make Solr recognize complex : situations and apply different sorting criterion. your question may seem simple to you, but unless you codify all the examples of what you consider a complex situation and how you expect those to be specified at run time, it's pretty much imposisble to give you an answer as to what the best way to achieve your goal is. the simplest answer based on the information available: if you can express your requirements in java, and put them in a custom Search Component, then Solr can do it. -Hoss
conditional sorting
Hi all, I need to perform sorting of my query hits by different criterion depending on the number of hits. For instance, if there are 10 hits, sort by date_entered, otherwise, sort by popularity. Does anyone know if there is a way to do that with a single query, or I'll have to send another query with desired sort criterion after I inspect number of hits on my client? Thx
Re: conditional sorting
If the threshold is only 10, why can't you always sort by popularity and if the result set is 10 then resort on the client side based on date_entered? Uri Bojan Šmid wrote: Hi all, I need to perform sorting of my query hits by different criterion depending on the number of hits. For instance, if there are 10 hits, sort by date_entered, otherwise, sort by popularity. Does anyone know if there is a way to do that with a single query, or I'll have to send another query with desired sort criterion after I inspect number of hits on my client? Thx
Re: conditional sorting
I tried to simplify the problem, but the point is that I could have really complex requirements. For instance, if in the first 5 results none are older than one year, use sort by X, otherwise sort by Y. So, the question is, is there a way to make Solr recognize complex situations and apply different sorting criterion. Bojan On Fri, Oct 2, 2009 at 4:22 PM, Uri Boness ubon...@gmail.com wrote: If the threshold is only 10, why can't you always sort by popularity and if the result set is 10 then resort on the client side based on date_entered? Uri Bojan Šmid wrote: Hi all, I need to perform sorting of my query hits by different criterion depending on the number of hits. For instance, if there are 10 hits, sort by date_entered, otherwise, sort by popularity. Does anyone know if there is a way to do that with a single query, or I'll have to send another query with desired sort criterion after I inspect number of hits on my client? Thx
Re: conditional sorting
Doing a second search immediately after the first one is consistently under 100 ms for me, usually under 25, on cheap hardware. Even while sorting the results, you should have no problems. If necessary, you could run Solr with the embedded client and do one search right after the other, avoid the thread-switching that can happen between HTTP requests. On Fri, Oct 2, 2009 at 8:15 AM, Bojan Šmid bos...@gmail.com wrote: I tried to simplify the problem, but the point is that I could have really complex requirements. For instance, if in the first 5 results none are older than one year, use sort by X, otherwise sort by Y. So, the question is, is there a way to make Solr recognize complex situations and apply different sorting criterion. Bojan On Fri, Oct 2, 2009 at 4:22 PM, Uri Boness ubon...@gmail.com wrote: If the threshold is only 10, why can't you always sort by popularity and if the result set is 10 then resort on the client side based on date_entered? Uri Bojan Šmid wrote: Hi all, I need to perform sorting of my query hits by different criterion depending on the number of hits. For instance, if there are 10 hits, sort by date_entered, otherwise, sort by popularity. Does anyone know if there is a way to do that with a single query, or I'll have to send another query with desired sort criterion after I inspect number of hits on my client? Thx -- Lance Norskog goks...@gmail.com
