: In the explain tag (debugQuery=true) : what does the *fieldWeight* value refer to?,
fieldWeight is just a label being put on the the product of the tf, idf, and fieldNorm for that term. (I don't remember why it's refered to as the "fieldWeight" ... i think it may just be historical, since these are all factors of the "field query" (ie: "term query", as opposed to a "boolean query" across multiple fields) : *1.0469098* is the product of tf, idf and fieldNorm, for both the records. : But field weight is different. I would like to know what is the field what do you mean "field weight is different" ? ... in both of the examples you posted, the fieldWeight is 1.0469098 ? Are you perhaps refering to the numbers "7" and "9" that appear inside the fieldWeight(...) label? Those are just refering to the (internal) docids (just like in the "fieldNorm(...)") : 1.0469098 =, : *(MATCH) fieldWeight(title:updated in 7), * : product of: 1.0 = tf(termFreq(title:updated)=1), 2.7917595 = idf(docFreq=2, : maxDocs=18), 0.375 = fieldNorm(field=title, doc=7) : : 1.0469098 =, : *(MATCH) fieldWeight(title:updated in 9), * : product of: 1.0 = tf(termFreq(title:updated)=1), 2.7917595 = idf(docFreq=2, : maxDocs=18), 0.375 = fieldNorm(field=title, doc=7) -Hoss
