Elia is a Software Engineer passionate about algorithms and data structures concerning search engines and efficiency.
He is active part of the information retrieval research community, attending international conferences such as SIGIR and ECIR.
In this blogpost I want to explore what possibilities elasticsearch gives us for storing fields and retrieve them at query time from the performance point of view. In fact, lucene, the underlying library upon which elasticsearch and solr are built, provides two ways for storing and retrieving fields: stored fields and docvalues. In addition, elasticsearch…
This blog post aims to give a better understanding of Docvalues and stored fields in Apache Solr for the operations in which they can be used interchangeably.