I am confused about the way boosting works inside a dis_max query.
I have documents to search with two fields - "name" and "important".
Anything that matches within "important" must come before anything in
"name". The query I have is a dis_max of:
"match": { "name": { "query": "zzz", "fuzziness": "AUTO" }}
"match": { "important": { "query": "zzz", "fuzziness": "AUTO", "boost":
100 }}
The two test documents are: { "name": "zzz" } and { "important": "zzz" }.
They are scored *the same* on the above dis_max, and the explanation
doesn't mention the boost at all.
However, if I remove fuzziness from the "important" query:
"match": { "important": { "query": "zzz", "boost": 100 }}
Then the "important" document scores better, as it (in my intent) should.
How does boosting work inside a dis_max query?
How do I correctly boost the "important" field inside a dis_max?
Attached is the cURL reproduction of the problem.
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#!/bin/sh -e
curl -s -XDELETE 'http://localhost:9200/testidx' || true
curl -XPOST 'http://localhost:9200/testidx/doctype/1' -d '{"name": "zzz"}'
curl -XPOST 'http://localhost:9200/testidx/doctype/2' -d '{"important": "zzz"}'
curl -XPOST 'http://localhost:9200/testidx/_refresh'
curl -XPOST 'http://localhost:9200/testidx/doctype/_search?pretty&explain' -d '{
"query": {
"dis_max": {
"queries": [
{
"match": {
"name": {
"query": "zzz",
"fuzziness": "AUTO"
}
}
},
{
"match": {
"important": {
"query": "zzz",
"boost": 100
}
}
}
]
}
}
}'
curl -XPOST 'http://localhost:9200/testidx/doctype/_search?pretty&explain' -d '{
"query": {
"dis_max": {
"queries": [
{
"match": {
"name": {
"query": "zzz",
"fuzziness": "AUTO"
}
}
},
{
"match": {
"important": {
"query": "zzz",
"fuzziness": "AUTO",
"boost": 100
}
}
}
]
}
}
}'
