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https://issues.apache.org/jira/browse/SOLR-9774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15671391#comment-15671391
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Erick Erickson commented on SOLR-9774:
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This _looks_ like a usage question at first glance, it would be best if you
asked about this on the Solr user's list, that has a much wider circulation and
you'd likely get answers much more quickly.
Please see "Mailng Lists" here: http://lucene.apache.org/solr/resources.html
> Delta indexing with child documents with help of
> cacheImpl="SortedMapBackedCache"
> ---------------------------------------------------------------------------------
>
> Key: SOLR-9774
> URL: https://issues.apache.org/jira/browse/SOLR-9774
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: contrib - DataImportHandler, Data-driven Schema
> Affects Versions: 6.1
> Reporter: Aniket Khare
> Labels: DIH, solr
>
> Hi,
> I am using solr DIH for indexing the Parent-Child relation data and using
> cacheImpl="SortedMapBackedCache".
> For Full data indexinf I am using command clean="true" and for delta I am
> using command full-import and clean="false".
> So the same queries are being executed for fulland delta and indexing working
> properly.
> The issue which we are facing is where for a perticuler parent document,
> there not a single child document and we are adding new child document.
> Following are the steps to reproduce the issue.
> 1. Add Child document to an existing parent document which is not having
> empty child document.
> 2. Once the child document is added with delta indexing, try to modify the
> parent document and run delta indexing again
> 3. After the delta indexing is completed, I can see the modified child
> documents showing in Solr DIH page in debug mode. But the it is not getting
> updated in Solr collection.
> I am using data config as below as below.
> <document name="User">
> <entity name="Parent" dataSource="DS1" pk="id" query="[SP_GetData]
> '${dih.last_index_time}','${dataimporter.request.clean}'">
> <field column="id" name="id"/>
> <field column="FirstName" name="FirstName"/>
> <field column="LastName" name="LastName"/>
> <entity name="R" dataSource="DS1" query="[SP_GetDataRTest]
> '${dih.last_index_time}','${dataimporter.request.clean}'"
> cacheKey="id" cacheLookup="Parent.id" processor="SqlEntityProcessor"
> cacheImpl="SortedMapBackedCache">
> <field column="RID" name="RID"/>
> <field column="RNAME" name="RID"/>
> </entity>
> <entity name="P" dataSource="DS2" query="[SP_GetDataTest]
> '${dih.last_index_time}','${dataimporter.request.clean}'"
> cacheKey="PID" cacheLookup="Parent.id" processor="SqlEntityProcessor"
> cacheImpl="SortedMapBackedCache" child="true">
> <field column="id" name="id"/>
> <field column="PNAME" name="PNAME"/>
> </entity>
> </entity>
> </document>
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