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https://issues.apache.org/jira/browse/SOLR-3241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13228914#comment-13228914
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Hoss Man commented on SOLR-3241:
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part of me things we should just remove the error checking for {{omitNorms &&
boost != 1.0F}} from DocumentBuilder.toDocument (added in /LUCENE-3796) and
just silently ignore any boost on a SolrInputField where omitNorms==true (ie:
maybe log a warning, but don't throw an Exception). This would be consistent
with the behavior in past releases (except for the warning log if we add that),
and wouldn't cause any confusing errors for things like LatLonType (even if
they come from third-party plugins we can't contro/test)
On the other hand... that feels really dirty, and it would be nice to fail fast
and loud if the client tries to set a boost on an omitNorms field
Perhaps a better fix would be to leave DocumentBuilder exactly as it is today,
and instead change FieldType.createField to (silently) ignore the boost if
omitNorms==true for that SchemaField. if i'm thinking about this right, that
would mean the error checking of the SolrInputDocument (and all it's
SolrInputFields) in DocumentBuilder.toDocument would still work as designed --
so you'd get an error if any client or "high level" plugin like an
UpdateProcessor tried to use a field boost on an omitNorms field; but any
fields added at a lower level (ie: by copyField or a poly field) would silently
ignore those boosts if they were copied/cloned to a field where omitNorms==true.
> Document boost fail if a field copy omit the norms
> --------------------------------------------------
>
> Key: SOLR-3241
> URL: https://issues.apache.org/jira/browse/SOLR-3241
> Project: Solr
> Issue Type: Bug
> Reporter: Tomás Fernández Löbbe
> Fix For: 4.0
>
> Attachments: SOLR-3241.patch
>
>
> After https://issues.apache.org/jira/browse/LUCENE-3796, it is not possible
> to set a boost to a field that has the "omitNorms" set to true. This is
> making Solr's document index-time boost to fail when a field that doesn't
> omit norms is copied (with copyField) to a field that does omit them and
> document boost is used. For example:
> <field name="author" type="text" indexed="true" stored="false"
> omitNorms="false"/>
> <field name="author_display" type="string" indexed="true" stored="true"
> omitNorms="true"/>
> <copyField source="author" dest="author_display"/>
> I'm attaching a possible fix.
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