Hi, I am working on LTR using solr 6.6.2. I am working on custom feature creation. I am able to create few custom features as per our requirement.
But, there are certain features, for which the data is stored in other collection. Data like count of clicks, last date when the product was ordered, etc. These type of information is stored in another collection and we are not planning to put this info. in first collection. Now, we need to use the data in other collection to generate the score of the document in LTR. We are open to develop custom components as well. Is there a way, we can modify our query using some join. But, we know join is expensive. Please suggest. Thanks in advance. Regards Kamal Kishore
