Hi,

Catch-all field: No need to worry about how to aggregate scores coming from 
different fields.
But you cannot utilize different analysers for different fields.

Multiple-fields: You can play with edismax's parameters on-the-fly, without 
having to re-index.
It is flexible that you can include/exclude fields from search.

Ahmet



On Monday, October 12, 2015 3:39 PM, 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

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