Getting matched subdocument in nested type

Elastic Stack Elasticsearch
1

I index varing multi level nested objects. When the search results are
returned is there any way returning just the matched subdocument using
script or filter mechanism

My mapping looks like

{"nested_mapping":{
"properties":{
"desp":{"type":"string"},
"id":{"type":"string",
"store":"yes"},"name":{"type":"string","store":"yes"},"
subprocess":{"type":"nested","include_in_root":true,
"properties":{"id":{"type":"string"},
"name":{"type":"string"}
}}}

Indexed documents are :

  1. {"id":"level2","desp":"simple desc","subprocess":{"name":"L3"}}

{"id":"level0","name":"L0","subprocess":{"id":"level1","name":"L1","subprocess":{"id":"level2","name":"L2","subprocess":{"id":"level3","name":"L3","desp":"Level
3 process"}}}}

I am getting both records (entire json source) for the search query "Q3".
What mechanism I should use if I just need to get sub documents (just
the matched nested part in the multi-level nesting) i.e.
subprocess":{"name":"L3"} and
subprocess:{"id":"level3","name":"L3","desp":"Level 3 process"}

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2

Returning only the matched nested documents is not yet supported by
Elasticsearch: Return matching nested inner objects per hit · Issue #3022 · elastic/elasticsearch · GitHub

You would need to resolve this issue on the client side for now.

--
Ivan

On Tue, May 21, 2013 at 2:07 AM, Chetana ambha.career@gmail.com wrote:

I index varing multi level nested objects. When the search results are
returned is there any way returning just the matched subdocument using
script or filter mechanism

My mapping looks like

{"nested_mapping":{
"properties":{
"desp":{"type":"string"},
"id":{"type":"string",
"store":"yes"},"name":{"type":"string","store":"yes"},"
subprocess":{"type":"nested","include_in_root":true,
"properties":{"id":{"type":"string"},
"name":{"type":"string"}
}}}

Indexed documents are :

  1. {"id":"level2","desp":"simple desc","subprocess":{"name":"L3"}}

{"id":"level0","name":"L0","subprocess":{"id":"level1","name":"L1","subprocess":{"id":"level2","name":"L2","subprocess":{"id":"level3","name":"L3","desp":"Level
3 process"}}}}

I am getting both records (entire json source) for the search query "Q3".
What mechanism I should use if I just need to get sub documents (just
the matched nested part in the multi-level nesting) i.e.
subprocess":{"name":"L3"} and
subprocess:{"id":"level3","name":"L3","desp":"Level 3 process"}

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"elasticsearch" group.
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