SOLR boost query order is wrong

Question

I want to retrieve some documents from SOLR and pass boosts to the field's so that they are returned in the order I request them (respectively the web request requests them). Therefore I add boosts to the desired ids:

q=myfield:"9125129"^10 OR 
  myfield:"9125417"^9 OR 
  myfield:"9124611"^8 OR 
  myfield:"9126980"^7 ...
fl=myfield
wt=csv

Unfortunately, this does not return the documents in the desired order:

myfield
9125129
9125417
9126980
9124611

If I change the query to

q=myfield:"9125129"^9 OR 
  myfield:"9125417"^8 OR 
  myfield:"9124611"^7 OR 
  myfield:"9126980"^6 ...
fl=myfield
wt=csv

(just for testing), the correct order is returned:

myfield
9125129
9125417
9124611
9126980

So it seems like SOLR does not like the double-digit boost value? But according to the spec this shouldn't be a problem. So what is actually the problem here and how can i request boosted fields with more than 10 documents?

Used SOLR version: 4.10.4

Answer 1

I found a documentation stating: "If absolute ordering is desired, a very high boost may be used." And indeed, if I assign very highly spread boost values (e.g. 1000, 900, 80, 7), the sort order is correct. But I guess it's open for discussion, whether this is a good practice and should be done like this. Seems a bit like guessing and using SOLR for something it was not designed for.

https://cwiki.apache.org/confluence/display/solr/SolrRelevancyCookbook#SolrRelevancyCookbook-BoostingRankingTerms