Question

I want to do ids query to SolrIndexSearcher (fetch several documents from solr using their ids) – something like ids query to SolrServer q=:&ids=ID1,ID2&fl=* .

I tried to call search(Query,int) in several ways with no success

i.e.

TopDocs results = this.indexSearcher.search(QueryParsing.parseQuery("q=\\*\\:\\*&ids=ID1,ID2&fl=*", this.indexSearcher.getSchema()) , MAX_DOCUMENTS);

results is allways empty..

thanks

Answer 1

You can search as q=ids:(ID1 OR ID2) which will search for the ids.
You can also use filter query q=*:*&fq=ids:(ID1 OR ID2) which is a performant approach as it utilizes the Filter cache.