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https://issues.apache.org/jira/browse/LUCENE-6898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Smiley updated LUCENE-6898:
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Attachment: LUCENE-6898.patch
Here's a simple patch.
I have no idea how much this optimization helps, but I imagine for it would
help for medium to large docs.
> Avoid reading last stored field value when StoredFieldVisitor.Status.NO
> -----------------------------------------------------------------------
>
> Key: LUCENE-6898
> URL: https://issues.apache.org/jira/browse/LUCENE-6898
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/codecs
> Reporter: David Smiley
> Assignee: David Smiley
> Priority: Minor
> Attachments: LUCENE-6898.patch
>
>
> CompressingStoredFieldsReader.visitDocument (line 597) loops through the
> fields in the input while consulting the StoredFieldVisitor on what to do.
> There is a small optimization that could be done on the last loop iteration.
> If the visitor returns Status.NO then it should be treated as equivalent to
> Status.STOP. As it is now, it will call skipField() which reads needless
> bytes from the DataInput that won't be used.
> With this optimization in place, it is advisable to put the largest text
> field last in sequence -- something the user or search platform (e.g.
> ES/Solr) could do.
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