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From Alessandro Benedetti <>
Subject Re: Proposal: Not index blank fields in Solr connector
Date Tue, 07 Oct 2014 16:35:23 GMT
I will copy here my consideration :

"So you have 2 scenarios for a field : you have content or you don't.

Introducing empty field you can have strange behaviours solr sides because
from the human point of view there is no difference between an empty or a
null field, but for solr yes, and the proper way to model a field that
doesn't have content is to not add the field at all to the document.

Introducing empty field can lead to inconsistent behaviour mainly sorting
side, or when you want to retrieve documents that have value for that field
( in this case indexing empty fields you are introducing false positive for
that search)"

Curious to see others opinions and discuss !


2014-10-07 17:28 GMT+01:00 Karl Wright <>:

> Hi folks,
> We're considering, for MCF 2.0, having the Solr connector not index empty
> fields -- just skip them entirely.  This is not backwards-compatible
> behavior, for a number of reasons:
> (1) If the field whose value is blank is marked as "required" in
> solrschema.xml, Solr will reject the document, where before it would have
> allowed it to be indexed;
> (2) Queries which make a distinction between no field and an empty field
> will no longer work the same way.
> Can I request a show of hands (figuratively) of how many people this
> change might affect?
> Thanks!
> Karl


Benedetti Alessandro
Visiting card :

"Tyger, tyger burning bright
In the forests of the night,
What immortal hand or eye
Could frame thy fearful symmetry?"

William Blake - Songs of Experience -1794 England

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