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https://issues.apache.org/jira/browse/SOLR-15450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17357890#comment-17357890
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Tom Gilke commented on SOLR-15450:
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I just made a [Pull-Request|https://github.com/apache/solr/pull/166] with an
idea for an implementation.
Looking forward to some feedback on this! :)
> Create possibility to prefetch stored fields needed for FieldValueFeatures
> --------------------------------------------------------------------------
>
> Key: SOLR-15450
> URL: https://issues.apache.org/jira/browse/SOLR-15450
> Project: Solr
> Issue Type: Sub-task
> Components: contrib - LTR
> Reporter: Tom Gilke
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The idea for this optimization came up in SOLR-12697 .
> The basic idea is to create a new type of {{FieldValueFeature}}. Named e.g.
> {{PrefetchingFieldValueFeature}}.
> This {{PrefetchingFieldValueFeature}} will prefetch all the stored fields
> that itself and other {{PrefetchingFieldValueFeatures}} need, so that only
> one of these Features has to read the values from disk. The other ones can
> access them from the cache, which would improve the performance.
> The {{PrefetchingFieldValueFeature}} would extend the {{FieldValueFeature}}
> so that the current behavior of the {{FieldValueFeature}} would not be
> affected.
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