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https://issues.apache.org/jira/browse/SOLR-3855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13495058#comment-13495058
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Yonik Seeley commented on SOLR-3855:
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bq. stored fields and doc values are considered very different features
I think we see things a bit differently at the conceptual level - but it
currently amounts to the same concrete decisions (i.e. I agree with all your
other list items).
stored=true says that a field is conceptualy stored (and will be returned by
fl=*), while docValues=??? specifies a different mechanism for storage than the
default.
Specifying both stored=true and docValues=??? will currently add the value to
both normal stored fields and docValues, optimizing for number of seeks for
fl=*, while being sub-optimal as far as index size is concerned (the value will
be stored in two places.) Future configuration options should be able to
control this trade-off.
> DocValues support
> -----------------
>
> Key: SOLR-3855
> URL: https://issues.apache.org/jira/browse/SOLR-3855
> Project: Solr
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Fix For: 4.1, 5.0
>
> Attachments: SOLR-3855.patch, SOLR-3855.patch
>
>
> It would be nice if Solr supported DocValues:
> - for ID fields (fewer disk seeks when running distributed search),
> - for sorting/faceting/function queries (faster warmup time than fieldcache),
> - better on-disk and in-memory efficiency (you can use packed impls).
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