The first result in this simple example shows that we obtain results similar to what we could have obtained by a simple q=annunciation search. We will have the chance to see the differences between the two options with more detail in Chapter 5, Extending Search. Filtered query can be cached (just like facets, which we will see later), improving the performance by reducing the overhead of performing the same query many times and accessing documents from large datasets to the same group many times.

For example, in our scenario, we could define specific endpoints with a predefined filter query by author to create specific channels. In this case, instead of passing the parameters every time we could set them on solrconfig.xml, as we will see later in the chapter.