David Smiley created LUCENE-6898:
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Summary: 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
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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