BTW, I am running against Elasticsearch version
1.4.4
On Monday, February 23, 2015 at 6:49:59 PM UTC-8, Jeff Steinmetz wrote:
>
> Any ideas why this would return a score of 1, when the last (bool
> must_not) matches, even though the weight is set to 0.0?
>
> As a bit of background, this provides custom scoring where
> - if one field matches, score at .35,
> - if another more important field matches, score .65,
> - if both match, score 1.0 (the sume)
> - if non match, score 0
>
> If I change the no match weight to -1 or something very small, like
> 0.000001, the weight for the must_not match comes back accurately.
> I am thinking this is some kind of divide by 0 error handerl in ES, that
> returns 1 when a score hits 0?
>
> GET test/document/_search
> {
> "query": {
> "function_score": {
> "filter": { "term": { "type": "animal" } },
> "functions": [
> {
> "filter": {
> "bool" : {
> "must" : {
> "term" : { "content" : "fish"}
> }}},
> "weight": 0.35
> },
> {
> "filter": {
> "bool" : {
> "must" : {
> "term" : { "user_description" : "fish" }
> }}},
> "weight": 0.65
> },
> {
> "filter": {
> "bool" : {
> "must_not" : [
> {"term" : { "user_description" : "fish" }},
> {"term" : { "content" : "fish" }}
> ]
> }
> },
> "weight": 0.0
> }
> ],
> "score_mode": "sum"
> }
> }
> }
>
>
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