Imagine a situation where you run an e-commerce site and you sell your products all over the world. One day you say that you would like to calculate the currencies by yourself and have all the goodies that Solr gives you on all the currencies you support. You could of course add multiple fields, one for each currency. On the other hand, you can use the new functionality introduced in Solr 3.6 and create a field that will use the provided currency exchange rates.
This recipe will show you how to configure and use multiple currencies using a single field in the index:
fieldssection in your
schema.xmlfile so it looks like the following ...