Changing the default operator from OR to AND in Solr (Magento Enterprise)

Question

I\'m using Solr with Magento Enterprise. I\'m trying to change the default search operator from OR to AND to make searches more specific by default.

Answer 1

To answer my own question, I ended up overriding the Enterprise_Search_Model_Adapter_HttpStream model to inject ANDs into the search query. I added the prepareSearchConditions() method from Enterprise_Search_Model_Adapter_Solr_Abstract:

It doesn't play nice with other operators obviously but in my case it's good enough™ (at least for now). I'm still hoping to find a better solution though.