On 4/30/2015 8:43 AM, Sznajder ForMailingList wrote: > I am interested to index some documents in Solr, as I did in Lucene. > > I mean: giving via solrJ all the information about the field I am adding > (Tokenize, store, facet etc...) > > can we do that? Or is it mandatory to define a schema on the collection?
All that information is defined on the server. You do not have direct access to the Lucene index - Solr is intended as an abstraction, so the admin and the users/applications that use Solr do not need to understand all the low-level details that go into a Lucene application. The admin just has to deal with configuration files like schema.xml, and the users just need to know what fields are in each document and how the query syntax works. Deeper Lucene knowledge is helpful, but not strictly necessary. If you want Lucene-level control, you'll need to write the search server yourself using Lucene. If you have very specific needs that Solr's approach can't satisfy, you always have this option. The newest Solr versions do have an example of what's known as a "data-driven" schema, or schemaless mode. In this mode, Solr builds up the schema automatically, guessing the field type based on what kind of data is the first to arrive for each field. This is good for prototyping, but for production use, I would want to be in full manual control of the schema. Thanks, Shawn
