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https://issues.apache.org/jira/browse/SOLR-12350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jan Høydahl resolved SOLR-12350.
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Resolution: Fixed
> Do not use docValues as stored for _str (copy)fields in _default configset
> --------------------------------------------------------------------------
>
> Key: SOLR-12350
> URL: https://issues.apache.org/jira/browse/SOLR-12350
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Data-driven Schema
> Reporter: Jan Høydahl
> Assignee: Jan Høydahl
> Priority: Major
> Fix For: master (8.0), 7.5
>
> Attachments: SOLR-12350.patch, SOLR-12350.patch
>
>
> When improving data-driven mode in SOLR-9526 we discussed back and forth
> whether to set {{useDocValuesAsStored}} for the {{*_str}} copy of text
> fields. This dynamic field is currently defined as
> {code:xml}
> <dynamicField name="*_str" type="strings" stored="false" docValues="true"
> indexed="false" />{code}
> Having lived with the current setting since 7.0, I think it is too noisy to
> return all the _str fields since this is redundant content from the analysed
> original field. Thus I propose to do as [~hossman] initially suggested, and
> explicitly set it to false starting from 7.4:
> {code:xml}
> <dynamicField name="*_str" type="strings" stored="false" indexed="false"
> docValues="true" useDocValuesAsStored="false" />
> {code}
> Note that this does not change how things are stored, only whether to display
> these by default. The {{*_str}} fields will still be available for sorting,
> faceting etc.
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