Hello everyone,
Is it possible to use highlighting on a non-stored solr.TextField, by
storing termVectors termPositions and termOffsets?
The main goal would be to allow for highlighting without the growth
associated with storing the fields.
Field definition:
<field name="text" type="text_simple" indexed="true" stored="false"
termVectors="true" termPositions="true" termOffsets="true"/>
<fieldType name="text_simple" class="solr.TextField"
positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.ASCIIFoldingFilterFactory"/>
</analyzer>
</fieldType>
The Term Vectors section in the Schema Options and Performance
Considerations page
<https://solr.apache.org/guide/solr/9_4/query-guide/highlighting.html#schema-options-and-performance-considerations>
describe how termVectors, termPositions and termOffsets can be used as an
alternative (although comparable in size to using "stored").
But in the Field Properties by Use Case section of the Highlighting page
<https://solr.apache.org/guide/solr/9_4/indexing-guide/field-properties-by-use-case.html>,
stored is shown as required.
and the hl.fl in the highlighter usage section
<https://solr.apache.org/guide/solr/9_4/query-guide/highlighting.html#common-highlighter-parameters>
mentions "These must be "stored"."
Thank you,
André Mourão
