Fix regressions around nested hits and disabled _source. (#66572)
This PR fixes two bugs that can arise when _source is disabled and we fetch nested documents: * Fix exception when highlighting `inner_hits` with disabled _source. * Fix exception in nested `top_hits` with disabled _source. * Add more tests for highlighting `inner_hits`.
This commit is contained in:
Julie Tibshirani
parent
df8c92cfef
commit
d4039228ae
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@ -56,6 +56,7 @@ setup:
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- do:
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search:
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rest_total_hits_as_int: true
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index: my-index
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body:
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aggs:
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to-users:
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@ -81,12 +82,62 @@ setup:
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- match: { aggregations.to-users.users.hits.hits.2._nested.field: users }
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- match: { aggregations.to-users.users.hits.hits.2._nested.offset: 1 }
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---
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"top_hits aggregation with nested documents and disabled _source":
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- skip:
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version: " - 7.99.99"
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reason: "bug fix is not yet backported"
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- do:
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indices.create:
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index: disabled-source
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body:
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settings:
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number_of_shards: 1
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number_of_replicas: 0
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mappings:
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_source:
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enabled: false
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properties:
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users:
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type: nested
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- do:
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index:
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index: disabled-source
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id: 1
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refresh: true
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body:
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users:
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- first: "John"
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last: "Smith"
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- do:
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search:
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index: disabled-source
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rest_total_hits_as_int: true
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body:
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aggs:
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to-users:
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nested:
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path: users
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aggs:
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users:
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top_hits: {}
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- match: { hits.total: 1 }
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- length: { aggregations.to-users.users.hits.hits: 1 }
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- match: { aggregations.to-users.users.hits.hits.0._id: "1" }
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- match: { aggregations.to-users.users.hits.hits.0._index: disabled-source }
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- match: { aggregations.to-users.users.hits.hits.0._nested.field: users }
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- match: { aggregations.to-users.users.hits.hits.0._nested.offset: 0 }
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- is_false: aggregations.to-users.users.hits.hits.0._source
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---
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"top_hits aggregation with sequence numbers":
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- do:
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search:
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index: my-index
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rest_total_hits_as_int: true
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body:
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aggs:
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@ -0,0 +1,137 @@
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setup:
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- do:
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indices.create:
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index: test
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body:
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mappings:
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_source:
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excludes: ["nested.stored_only"]
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properties:
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nested:
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type: nested
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properties:
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field:
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type: text
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fields:
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vectors:
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type: text
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term_vector: "with_positions_offsets"
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postings:
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type: text
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index_options: "offsets"
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stored:
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type: text
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store: true
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stored_only:
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type: text
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store: true
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- do:
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index:
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index: test
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id: 1
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refresh: true
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body:
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nested:
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field : "The quick brown fox is brown."
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stored : "The quick brown fox is brown."
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stored_only : "The quick brown fox is brown."
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---
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"Unified highlighter":
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- do:
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search:
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index: test
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body:
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query:
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nested:
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path: "nested"
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query:
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multi_match:
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query: "quick brown fox"
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fields: [ "nested.field", "nested.field.vectors", "nested.field.postings" ]
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inner_hits:
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highlight:
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type: "unified"
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fields:
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nested.field: {}
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nested.field.vectors: {}
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nested.field.postings: {}
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- match: { hits.hits.0.inner_hits.nested.hits.hits.0.highlight.nested\.field.0: "The <em>quick</em> <em>brown</em> <em>fox</em> is <em>brown</em>." }
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- match: { hits.hits.0.inner_hits.nested.hits.hits.0.highlight.nested\.field\.vectors.0: "The <em>quick</em> <em>brown</em> <em>fox</em> is <em>brown</em>." }
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- match: { hits.hits.0.inner_hits.nested.hits.hits.0.highlight.nested\.field\.postings.0: "The <em>quick</em> <em>brown</em> <em>fox</em> is <em>brown</em>." }
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---
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"Unified highlighter with stored fields":
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- do:
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search:
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index: test
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body:
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query:
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nested:
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path: "nested"
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query:
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multi_match:
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query: "quick brown fox"
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fields: [ "nested.stored", "nested.stored_only" ]
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inner_hits:
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highlight:
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type: "unified"
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fields:
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nested.stored: {}
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nested.stored_only: {}
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- match: { hits.hits.0.inner_hits.nested.hits.hits.0.highlight.nested\.stored.0: "The <em>quick</em> <em>brown</em> <em>fox</em> is <em>brown</em>." }
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- match: { hits.hits.0.inner_hits.nested.hits.hits.0.highlight.nested\.stored_only.0: "The <em>quick</em> <em>brown</em> <em>fox</em> is <em>brown</em>." }
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---
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"Unified highlighter with stored fields and disabled source":
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- skip:
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version: " - 7.99.99"
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reason: "bug fix is not yet backported"
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- do:
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indices.create:
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index: disabled_source
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body:
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mappings:
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_source:
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enabled: false
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properties:
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nested:
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type: nested
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properties:
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field:
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type: text
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stored_only:
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type: text
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store: true
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- do:
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index:
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index: disabled_source
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id: 1
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refresh: true
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body:
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nested:
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field: "The quick brown fox is brown."
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stored_only: "The quick brown fox is brown."
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- do:
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search:
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index: disabled_source
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body:
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query:
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nested:
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path: "nested"
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query:
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multi_match:
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query: "quick brown fox"
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fields: ["nested.field", "nested.stored_only"]
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inner_hits:
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highlight:
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type: "unified"
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fields:
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nested.field: {}
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nested.stored_only: {}
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- is_false: hits.hits.0.inner_hits.nested.hits.hits.0.highlight.nested\.field
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- match: { hits.hits.0.inner_hits.nested.hits.hits.0.highlight.nested\.stored_only.0: "The <em>quick</em> <em>brown</em> <em>fox</em> is <em>brown</em>."}
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@ -32,7 +32,6 @@ import org.apache.lucene.search.Weight;
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import org.apache.lucene.util.BitSet;
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import org.elasticsearch.Version;
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import org.elasticsearch.common.CheckedBiConsumer;
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import org.elasticsearch.common.bytes.BytesReference;
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import org.elasticsearch.common.collect.Tuple;
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import org.elasticsearch.common.document.DocumentField;
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import org.elasticsearch.common.lucene.index.SequentialStoredFieldsLeafReader;
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@ -378,10 +377,13 @@ public class FetchPhase {
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rootId = rootFieldsVisitor.uid();
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if (needSource) {
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BytesReference rootSource = rootFieldsVisitor.source();
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Tuple<XContentType, Map<String, Object>> tuple = XContentHelper.convertToMap(rootSource, false);
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if (rootFieldsVisitor.source() != null) {
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Tuple<XContentType, Map<String, Object>> tuple = XContentHelper.convertToMap(rootFieldsVisitor.source(), false);
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rootSourceAsMap = tuple.v2();
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rootSourceContentType = tuple.v1();
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} else {
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rootSourceAsMap = Collections.emptyMap();
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}
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}
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}
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@ -413,7 +415,7 @@ public class FetchPhase {
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nestedDocId,
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new SourceLookup()); // Use a clean, fresh SourceLookup for the nested context
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if (rootSourceAsMap != null) {
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if (rootSourceAsMap != null && rootSourceAsMap.isEmpty() == false) {
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// Isolate the nested json array object that matches with nested hit and wrap it back into the same json
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// structure with the nested json array object being the actual content. The latter is important, so that
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// features like source filtering and highlighting work consistent regardless of whether the field points
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