Question

solr sort,i want Specify a particular document at the first

for example:

Results :5,2,3,1

I want 2 at the first ,Other sorted in accordance with the rules

2,1,3,5

how to do this ?

Answer 1

I know of two ways you can try to tackle this using Solr.

The first is to use the QueryElevationComponent. This lets you define the top results at index time. As suggested in the documentation, this is good for placing sponsored results or popular documents at the top of the search results. The potential downside is that you have to be able to identify those documents at index time and not at query time.

The other approach is to boost the desired documents at query time using the bq parameter. To boost document 435, you would do something like this:

...&bq=id:435^10

Unfortunately, neither of these approaches give you absolute control over the order of the results.

The solution provided by Riking would certainly do the job if you don’t mind processing the results after performing the search. Another approach you could consider is to add a field to your Solr schema that defines a display order or priority. You can then sort on that field to get the desired sort order.