The error originates from FieldValueFactorFunctionParser.java <https://github.com/elastic/elasticsearch/blob/528f6481eaadd2a0585dc6731a94d7a024b8ce29/src/main/java/org/elasticsearch/index/query/functionscore/fieldvaluefactor/FieldValueFactorFunctionParser.java> (line 89), in FieldValueFactorFunctionParser. Is there really a need to check for the existence of all fields during parsing? With other function, this is not done, so no problem if a field does not exist, yet.
Best regards, Tobias On Wednesday, April 29, 2015 at 2:13:19 PM UTC+2, Tobias Schubotz wrote: > > Hi, > > My ES function score query contains several different functions based on a > set of different fields. I'm having problems with field_value_factor on not > existing fields. > I'm not sure if that's existing behavior or a bug in ES. > > Here a minimal example on how to reproduce the problem: > > Example document: > curl -XPOST "http://localhost:9200/blog/page/1?pretty"; -d ' > { > "author": "tobias", > "content": "Great", > "views": 1 > }' > > A search request, that boosts based on the function score looks like that: > curl -XPOST "http://localhost:9200/blog/_search"; -d ' > { > "query": { > "function_score": { > "functions": [ > { > "field_value_factor": { > "field": "views", > "modifier": "log2p" > } > } > ] > } > } > }' > > Everything is fine until this point. > When I change the "field" param to "likes", the requests fails: > curl -XPOST "http://localhost:9200/blog/_search"; -d ' > { > "query": { > "function_score": { > "functions": [ > { > "field_value_factor": { > "field": "likes", > "modifier": "log2p" > } > } > ] > } > } > }' > -> ElasticsearchException[Unable to find a field mapper for field [likes] > > > "likes" doesn't exist yet in the "page" document type, but it might exist > in the future. Or there could be another type "page2", where the "likes" > field exist, and I need to query both "page" and "page2" in 1 request. > > What I tried, is to put an exist filter beforehand, however, the error > remains the same. > curl -XPOST "http://localhost:9200/blog/_search"; -d ' > { > "query": { > "function_score": { > "functions": [ > { > "filter": { > "exists": { > "field": "likes" > } > }, > "field_value_factor": { > "field": "likes" > } > } > ] > } > } > }' > -> ElasticsearchException[Unable to find a field mapper for field [likes] > > Is this a bug or expected bahavior? > I would expect ES to just skip the function, in case the "exists" filter > evaluates to False or the field doesn't exist. > > With other function types, there is no problem. E.g. the following works > without an error: > curl -XPOST "http://localhost:9200/blog/_search"; -d ' > { > "query": { > "function_score": { > "functions": [ > { > "filter": { > "range": {"likes": {"from": 1}} > }, > "weight": 1.5 > } > ] > } > } > }' > > Any ideas? > > Let me know, if you need further information. > > Best regards, > Tobias > > > > > -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/36dfe2bf-b6c1-4d85-8e53-61526453bdc2%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
