I am new to Solr and I am trying to get my head around it. I can't for the life of me find any decent documentation for Solr. I've checked on the official page to see what _val_
does but it doesn't explain it well.
If someone can explain it here and give examples of how it's used that would be great!
_val_
is a hook provided by Solr for FunctionQuery
. You can pass in a function to the query to manipulate the score of a document.
Ex:
_val_:"recip(rord(myfield),1,2,3)"
Refer here for the SolrQuerySyntax
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