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I am trying to figure out how to index nested documents in Solr 8. I have found examples that talk about doing this but none provide a schema.xml.
schema.xml
<schema name="example-data-driven-schema" version="1.6">
<fields>
<field name="_version_" type="long" indexed="true" stored="true" required="true"/>
<field name="_root_" type="string" indexed="true" stored="false" docValues="false" />
<field name="id" type="string" indexed="true" stored="true" required="true"/>
<field name="title" type="text_general" indexed="true" stored="true"/>
<field name="author" type="text_general" indexed="true" stored="true"/>
<field name="comment" type="text_general" indexed="true" stored="true"/>
<field name="commenter" type="text_general" indexed="true" stored="true"/>
<field name="contributor_name" type="text_general" indexed="true" stored="true"/>
<field name="contributor_role" type="text_general" indexed="true" stored="true"/>
<field name="_nest_path_" type="_nest_path_" />
<field name="_nest_parent_" type="string" indexed="true" stored="true" />
<dynamicField name="*" type="ignored"/>
</fields>
<uniqueKey>id</uniqueKey>
<fieldType name="ignored" class="solr.StrField" indexed="false" stored="false" multiValued="true"/>
<fieldType name="_nest_path_" class="solr.NestPathField" />
<fieldType name="booleans" class="solr.BoolField" sortMissingLast="true" multiValued="true"/>
<fieldType name="long" class="solr.TrieLongField" positionIncrementGap="0" docValues="true" precisionStep="0"/>
<fieldType name="string" class="solr.StrField" sortMissingLast="true" docValues="true"/>
<fieldType name="tdates" class="solr.TrieDateField" positionIncrementGap="0" docValues="true" multiValued="true" precisionStep="6"/>
<fieldType name="tdoubles" class="solr.TrieDoubleField" positionIncrementGap="0" docValues="true" multiValued="true" precisionStep="8"/>
<fieldType name="text_general" class="solr.TextField" positionIncrementGap="100"/>
<fieldType name="tlongs" class="solr.TrieLongField" positionIncrementGap="0" docValues="true" multiValued="true" precisionStep="8"/>
</schema>
I am adding documents with this command:
curl -X POST -k -H 'Content-Type: application/json' -i 'http://localhost:8983/solr/nested_documents_example/update?commit=true' --data '[
{
"id": "post101",
"title": "How to Optimize Solr Queries",
"author": "Mike Johnson",
"_nest_parent_": "post101",
"_childDocuments_": [
{
"id": "comment101",
"comment": "This article helped me a lot!",
"commenter": "Sophie"
},
{
"id": "contributor101",
"contributor_name": "Karen",
"contributor_role": "Reviewer"
}
]
},
{
"id": "post102",
"title": "Advanced Solr Schema Design",
"author": "Sarah Brown",
"_nest_parent_": "post102",
"_childDocuments_": [
{
"id": "comment102",
"comment": "Great schema design tips!",
"commenter": "James"
}
]
}
]'
This is what I get when I query Solr (http://localhost:8983/solr/nested_documents_example/select?q=*:*):
{
"responseHeader": {
"zkConnected": true,
"status": 0,
"QTime": 0,
"params": {
"q": "*:*",
"indent": "true",
"q.op": "OR"
}
},
"response": {
"numFound": 5,
"start": 0,
"numFoundExact": true,
"docs": [
{
"id": "comment101",
"comment": "This article helped me a lot!",
"commenter": "Sophie",
"_version_": 1820876636938043400
},
{
"id": "contributor101",
"contributor_name": "Karen",
"contributor_role": "Reviewer",
"_version_": 1820876636938043400
},
{
"id": "post101",
"title": "How to Optimize Solr Queries",
"author": "Mike Johnson",
"_nest_parent_": "post101",
"_version_": 1820876636938043400
},
{
"id": "comment102",
"comment": "Great schema design tips!",
"commenter": "James",
"_version_": 1820876636939092000
},
{
"id": "post102",
"title": "Advanced Solr Schema Design",
"author": "Sarah Brown",
"_nest_parent_": "post102",
"_version_": 1820876636939092000
}
]
}
}
Instead of nested results, everything is at the top level (flattened). Can anyone shed light on what I'm doing wrong?
I am trying to figure out how to index nested documents in Solr 8. I have found examples that talk about doing this but none provide a schema.xml.
schema.xml
<schema name="example-data-driven-schema" version="1.6">
<fields>
<field name="_version_" type="long" indexed="true" stored="true" required="true"/>
<field name="_root_" type="string" indexed="true" stored="false" docValues="false" />
<field name="id" type="string" indexed="true" stored="true" required="true"/>
<field name="title" type="text_general" indexed="true" stored="true"/>
<field name="author" type="text_general" indexed="true" stored="true"/>
<field name="comment" type="text_general" indexed="true" stored="true"/>
<field name="commenter" type="text_general" indexed="true" stored="true"/>
<field name="contributor_name" type="text_general" indexed="true" stored="true"/>
<field name="contributor_role" type="text_general" indexed="true" stored="true"/>
<field name="_nest_path_" type="_nest_path_" />
<field name="_nest_parent_" type="string" indexed="true" stored="true" />
<dynamicField name="*" type="ignored"/>
</fields>
<uniqueKey>id</uniqueKey>
<fieldType name="ignored" class="solr.StrField" indexed="false" stored="false" multiValued="true"/>
<fieldType name="_nest_path_" class="solr.NestPathField" />
<fieldType name="booleans" class="solr.BoolField" sortMissingLast="true" multiValued="true"/>
<fieldType name="long" class="solr.TrieLongField" positionIncrementGap="0" docValues="true" precisionStep="0"/>
<fieldType name="string" class="solr.StrField" sortMissingLast="true" docValues="true"/>
<fieldType name="tdates" class="solr.TrieDateField" positionIncrementGap="0" docValues="true" multiValued="true" precisionStep="6"/>
<fieldType name="tdoubles" class="solr.TrieDoubleField" positionIncrementGap="0" docValues="true" multiValued="true" precisionStep="8"/>
<fieldType name="text_general" class="solr.TextField" positionIncrementGap="100"/>
<fieldType name="tlongs" class="solr.TrieLongField" positionIncrementGap="0" docValues="true" multiValued="true" precisionStep="8"/>
</schema>
I am adding documents with this command:
curl -X POST -k -H 'Content-Type: application/json' -i 'http://localhost:8983/solr/nested_documents_example/update?commit=true' --data '[
{
"id": "post101",
"title": "How to Optimize Solr Queries",
"author": "Mike Johnson",
"_nest_parent_": "post101",
"_childDocuments_": [
{
"id": "comment101",
"comment": "This article helped me a lot!",
"commenter": "Sophie"
},
{
"id": "contributor101",
"contributor_name": "Karen",
"contributor_role": "Reviewer"
}
]
},
{
"id": "post102",
"title": "Advanced Solr Schema Design",
"author": "Sarah Brown",
"_nest_parent_": "post102",
"_childDocuments_": [
{
"id": "comment102",
"comment": "Great schema design tips!",
"commenter": "James"
}
]
}
]'
This is what I get when I query Solr (http://localhost:8983/solr/nested_documents_example/select?q=*:*):
{
"responseHeader": {
"zkConnected": true,
"status": 0,
"QTime": 0,
"params": {
"q": "*:*",
"indent": "true",
"q.op": "OR"
}
},
"response": {
"numFound": 5,
"start": 0,
"numFoundExact": true,
"docs": [
{
"id": "comment101",
"comment": "This article helped me a lot!",
"commenter": "Sophie",
"_version_": 1820876636938043400
},
{
"id": "contributor101",
"contributor_name": "Karen",
"contributor_role": "Reviewer",
"_version_": 1820876636938043400
},
{
"id": "post101",
"title": "How to Optimize Solr Queries",
"author": "Mike Johnson",
"_nest_parent_": "post101",
"_version_": 1820876636938043400
},
{
"id": "comment102",
"comment": "Great schema design tips!",
"commenter": "James",
"_version_": 1820876636939092000
},
{
"id": "post102",
"title": "Advanced Solr Schema Design",
"author": "Sarah Brown",
"_nest_parent_": "post102",
"_version_": 1820876636939092000
}
]
}
}
Instead of nested results, everything is at the top level (flattened). Can anyone shed light on what I'm doing wrong?
Share Improve this question edited 8 hours ago Mark Sholund asked 8 hours ago Mark SholundMark Sholund 1,3023 gold badges18 silver badges33 bronze badges1 Answer
Reset to default 0Here's what I came up with, it seems to work:
schema.xml
<schema name="example-data-driven-schema" version="1.6">
<fields>
<field name="_version_" type="long" indexed="true" stored="true" required="true"/>
<field name="_root_" type="string" indexed="true" />
<field name="id" type="string" indexed="true" stored="true" required="true"/>
<field name="title" type="text_general" indexed="true" stored="true"/>
<field name="author" type="text_general" indexed="true" stored="true"/>
<field name="comment" type="text_general" indexed="true" stored="true"/>
<field name="commenter" type="text_general" indexed="true" stored="true"/>
<field name="contributor_name" type="text_general" indexed="true" stored="true"/>
<field name="contributor_role" type="text_general" indexed="true" stored="true"/>
<field name="_nest_path_" type="_nest_path_" />
<field name="_nest_parent_" type="string"/>
<dynamicField name="*" type="ignored"/>
</fields>
<uniqueKey>id</uniqueKey>
<fieldType name="ignored" class="solr.StrField" indexed="false" stored="false" multiValued="true"/>
<fieldType name="_nest_path_" class="solr.NestPathField" />
<fieldType name="booleans" class="solr.BoolField" sortMissingLast="true" multiValued="true"/>
<fieldType name="long" class="solr.TrieLongField" positionIncrementGap="0" docValues="true" precisionStep="0"/>
<fieldType name="string" class="solr.StrField" sortMissingLast="true" docValues="true"/>
<fieldType name="tdates" class="solr.TrieDateField" positionIncrementGap="0" docValues="true" multiValued="true" precisionStep="6"/>
<fieldType name="tdoubles" class="solr.TrieDoubleField" positionIncrementGap="0" docValues="true" multiValued="true" precisionStep="8"/>
<fieldType name="text_general" class="solr.TextField" positionIncrementGap="100"/>
<fieldType name="tlongs" class="solr.TrieLongField" positionIncrementGap="0" docValues="true" multiValued="true" precisionStep="8"/>
</schema>
Insert these documents:
[
{
"id": "post101",
"title": "How to Optimize Solr Queries",
"author": "Mike Johnson",
"comments": [
{
"id": "comment101",
"comment": "This article helped me a lot!",
"commenter": "Sophie"
}],
"contributors": [{
"id": "contributor101",
"contributor_name": "Karen",
"contributor_role": "Reviewer"
}
]
},
{
"id": "post102",
"title": "Advanced Solr Schema Design",
"author": "Sarah Brown",
"comments": [
{
"id": "comment102",
"comment": "Great schema design tips!",
"commenter": "James"
}
]
}
]
The select that I did is correct in returning everything "flattened" - the problem was that I needed to add fl=*,[child] to the request. After doing that, my results are:
.
.
.
docs": [
{
"id": "comment101",
"comment": "This article helped me a lot!",
"commenter": "Sophie",
"_nest_parent_": "post101",
"_root_": "post101",
"_version_": 1820881500429615000
},
{
"id": "contributor101",
"contributor_name": "Karen",
"contributor_role": "Reviewer",
"_nest_parent_": "post101",
"_root_": "post101",
"_version_": 1820881500429615000
},
{
"id": "post101",
"title": "How to Optimize Solr Queries",
"author": "Mike Johnson",
"_version_": 1820881500429615000,
"_root_": "post101",
"comments": [
{
"id": "comment101",
"comment": "This article helped me a lot!",
"commenter": "Sophie",
"_nest_parent_": "post101",
"_root_": "post101",
"_version_": 1820881500429615000
}
],
"contributors": [
{
"id": "contributor101",
"contributor_name": "Karen",
"contributor_role": "Reviewer",
"_nest_parent_": "post101",
"_root_": "post101",
"_version_": 1820881500429615000
}
]
},
{
"id": "comment102",
"comment": "Great schema design tips!",
"commenter": "James",
"_nest_parent_": "post102",
"_root_": "post102",
"_version_": 1820881500430663700
},
{
"id": "post102",
"title": "Advanced Solr Schema Design",
"author": "Sarah Brown",
"_version_": 1820881500430663700,
"_root_": "post102",
"comments": [
{
"id": "comment102",
"comment": "Great schema design tips!",
"commenter": "James",
"_nest_parent_": "post102",
"_root_": "post102",
"_version_": 1820881500430663700
}
]
}
]
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