I think it may all depend on the nature of your application and how much commonality there is between fields.
One interesting area is auto-suggest, where you can certainly suggest from the union of all fields, you may want to give priority to suggestions from preferred fields. For example, for actual product names or important keywords rather than random words from the English language that happen to occur in descriptions, all of which would occur in a catchall. -- Jack Krupansky On Mon, Oct 12, 2015 at 8:39 AM, elisabeth benoit <elisaelisael...@gmail.com > wrote: > Hello, > > We're using solr 4.10 and storing all data in a catchall field. It seems to > me that one good reason for using a catchall field is when using scoring > with idf (with idf, a word might not have same score in all fields). We got > rid of idf and are now considering using multiple fields. I remember > reading somewhere that using a catchall field might speed up searching > time. I was wondering if some of you have any opinion (or experience) > related to this subject. > > Best regards, > Elisabeth >
