Nabble mutilated my reply :
*Comment*: If you remove this field, you must _also_ disable the update log
in solrconfig.xml
or Solr won't start. _version_ and update log are required for
SolrCloud
<field name="_version_" type="long" indexed="true" stored="true"/>
*Comment*:points to the root document of a block of nested documents.
Required for nested
document support, may be removed otherwise
<field name="_root_" type="string" indexed="true" stored="false"/>
*Comment*:Only remove the "id" field if you have a very good reason to.
While not strictly
required, it is highly recommended. A <uniqueKey> is present in almost
all Solr
installations. See the <uniqueKey> declaration below where <uniqueKey>
is set to "id".
<field name="id" type="string" indexed="true" stored="true"
required="true" multiValued="false" />
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Alessandro Benedetti
Search Consultant, R&D Software Engineer, Director
Sease Ltd. - www.sease.io
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