We are using Solr 5.5.
I would like to know if it is possible to restrict highlighting as described below.
Suppose we have this search:
doc_id:100 OR samples
which is transformed into
doc_id:100 OR text:samples
We want the highlighting to of "100" to be restricted to the doc_id field, and "samples" to be highlighted in the document_* fields copied to the text field.
With basic highlighting enabled we get "100" highlighted in any field (per the documentation), e.g. hl=true&hl.fl=*
"highlighting": {
"2918": {
"document_content": [
" \t\t <em>100</em> \t\t 90 \t\t 95 \t\t 90 \t\t 95 \t\t 80 \t\t 85 \t\t 85 \t\t 80 \t\t 90.42 \t\t 66.67 \t\t 90.4166666667 \t\t \t\t 1085"
],
"doc_id": [
"<em>100</em>"
]
},
"4413": {
"document_title": [
"Purchased <em>samples</em>"
],
"doc_id": [
"<em>100</em>"
],
"document_file_name": [
"<em>Samples</em> late 2004.doc"
]
},
...
The recommended solution is to use hl.requireFieldMatch
but this results in only the doc_id field being highlighted. The other (document_*) fields are no longer highlighted, I guess because they don't match text, e.g. hl=true&hl.fl=*&hl.requireFieldMatch=true
"highlighting": {
"2918": {
"doc_id": [
"<em>100</em>"
]
},
"4413": {
"doc_id": [
"<em>100</em>"
]
},
"4415": {
"doc_id": [
"<em>100</em>"
]
},
How can I get the document_* fields that are copied to the text field to be highlighted while restricting highlighting of the doc_id field to its matching query terms?
EDIT: Perhaps, the key is to index and store the text field and then specify highlighting of the text and doc_id fields, i.e. change its definition to
and call hl=true&hl.fl=text,doc_id&hl.requireFieldMatch=true
.