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https://issues.apache.org/jira/browse/SOLR-3855?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand updated SOLR-3855:
-------------------------------
Attachment: SOLR-3855.patch
New patch:
- ability to have direct doc values,
- doc values are not fetched by default, you need to explicitely add their
name to the fl parameter to load them,
- all tests pass except BasicDistributedZkTest.testDistribSearch, but it
doesn't pass either without the patch applied on my (very slow...) laptop.
This patch is not perfect... for example I am not happy that I had to add a new
createDocValuesFields method in FieldType. The reason is that only poly fields
are allowed to return several fields in createFields but I think this would
require a more globabl refactoring and should not block this issue?
If you want to play with doc values and Solr, I modified the example schema.xml
so that popularity and inStock have doc values enabled. You can try to display
their values, sort on them and/or use function queries on them.
When a field is indexed and has doc values, the patch always tries to use doc
values instead of the field cache.
> 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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