If only I'd waited a few minutes. Clinton explains the difference between my issue and Martin's gist:
The difference is that he didn't specify the type in the URL, so it > searched the mappings for all types for a field called weight. Because > we've specified the type in the URL, it only searched myChild, notmyParent On Monday, January 27, 2014 3:51:23 PM UTC-5, Paul Bellora wrote: > > Just to close the loop on this topic, Clinton Gormley posted an answer to > the SO question with a workaround: use doc['*myParent.*weight'].value. He > also opened an > issue<https://github.com/elasticsearch/elasticsearch/issues/4914>for this > behavior. > > Although as I commented on the SO answer, Martin Groningen's > gist<https://gist.github.com/martijnvg/8639841>does work fine and I'm not > sure what the difference is between the two > cases. > > Thank you Martin and Clinton for your help. > > On Sunday, January 26, 2014 4:47:48 PM UTC-5, Martijn v Groningen wrote: >> >> Hi Paul, >> >> The mapping and query that you're sharing make sense and should work. I >> verified that with a small recreation: >> https://gist.github.com/martijnvg/8639841 >> >> What I think you're running into is that a document of type 'myParent' >> doesn't have the field `weight`. Can you check if that is the case? >> If so you might want to add a `null_value` for the weight field, so that >> all `myParent` docs have a value for the weight field. >> >> Martijn >> >> >> On 24 January 2014 21:38, Paul Bellora <bell...@gmail.com> wrote: >> >>> Update: posted to Stack Overflow with bounty: >>> http://stackoverflow.com/questions/21289149/trouble-with-has-parent-query-containing-scripted-function-score >>> >>> >>> On Thursday, January 16, 2014 11:11:27 AM UTC-5, Paul Bellora wrote: >>>> >>>> I have two document types, in a parent-child relationship: >>>> >>>> "myParent" : { >>>> "properties" : { >>>> "weight" : { >>>> "type" : "double" >>>> } >>>> } >>>> } >>>> >>>> >>>> "myChild" : { >>>> "_parent" : { >>>> "type" : "myParent" >>>> }, >>>> "_routing" : { >>>> "required" : true >>>> } >>>> } >>>> >>>> >>>> The weight field is to be used for custom scoring/sorting. This query >>>> directly against the parent documents works as intended: >>>> >>>> { >>>> "query" : { >>>> "function_score" : { >>>> "script_score" : { >>>> "script" : "_score * doc['weight'].value" >>>> } >>>> } >>>> >>>> } >>>> } >>>> >>>> >>>> However, when trying to do similar scoring for the child documents with >>>> a has_parent query, I get an error: >>>> >>>> { >>>> "query" : { >>>> "has_parent" : { >>>> "query" : { >>>> "function_score" : { >>>> >>>> "script_score" : { >>>> "script" : "_score * doc['weight'].value" >>>> } >>>> } >>>> }, >>>> "parent_type" : "myParent", >>>> "score_type" : "score" >>>> } >>>> } >>>> } >>>> >>>> >>>> The error is: >>>> >>>> QueryPhaseExecutionException[[myIndex][3]: >>>> query[filtered(ParentQuery[myParent](filtered(function >>>> score (ConstantScore(*:*),function=script[_score * >>>> doc['weight'].value], params [null]))->cache(_type: >>>> myParent)))->cache(_type:myChild)],from[0],size[10]: Query Failed >>>> [failed to execute context rewrite]]; nested: >>>> ElasticSearchIllegalArgumentException[No >>>> field found for [weight] in mapping with types [myChild]]; >>>> >>>> It seems like instead of taking the result of the scoring function and >>>> applying it to the child, ES is taking the scoring *function* and >>>> applying it to the child, hence the error. >>>> >>>> If I don't use score for score_type, the error doesn't occur, although >>>> the results scores are then all 1.0, as documented. >>>> >>>> What am I missing here? How can I query these child documents with >>>> custom scoring based on a parent field? >>>> >>> -- >>> 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 elasticsearc...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/elasticsearch/a3ec1600-157e-45e9-b006-37cddc2b422f%40googlegroups.com >>> . >>> >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >> >> >> -- >> Met vriendelijke groet, >> >> Martijn van Groningen >> > -- 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/70ebd4cc-258b-458a-82f1-80b028e0e40f%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
