David Smiley created SOLR-7327:
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Summary: DefaultSolrHighlighter should lazily create a FVH
FieldQuery.
Key: SOLR-7327
URL: https://issues.apache.org/jira/browse/SOLR-7327
Project: Solr
Issue Type: Improvement
Components: highlighter
Reporter: David Smiley
Assignee: David Smiley
Priority: Minor
DefaultSolrHighlighter switches between both the standard/default/classic
Highlighter and the FastVectorHighlighter, depending on parameters and field
options. In doHighlighting(), it loops over the docs, then loops over the
highlighted fields, then decides to use one highlighter or the other. Outside
of the doc loop it creates a FastVectorHighlighter instance (cheap) and a
related FieldQuery object that may or may not be cheap. fvh.getFieldQuery
takes an IndexReader instance and it will be used for certain queries like
MultiTermQuery (e.g. wildcards). We shouldn't be doing this unless we know
we'll actually need it -- it should be lazily constructed.
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