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https://issues.apache.org/jira/browse/SOLR-6700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14213933#comment-14213933
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Mikhail Khludnev commented on SOLR-6700:
----------------------------------------
'won't fix' as a dupe of SOLR-6096
> ChildDocTransformer doesn't return correct children after updating and
> optimising solr index
> --------------------------------------------------------------------------------------------
>
> Key: SOLR-6700
> URL: https://issues.apache.org/jira/browse/SOLR-6700
> Project: Solr
> Issue Type: Bug
> Reporter: Bogdan Marinescu
> Priority: Blocker
> Fix For: 4.10.3, 5.0
>
>
> I have an index with nested documents.
> {code:title=schema.xml snippet|borderStyle=solid}
> <field name="id" type="string" indexed="true" stored="true" required="true"
> multiValued="false" />
> <field name="entityType" type="int" indexed="true" stored="true"
> required="true"/>
> <field name="pName" type="string" indexed="true" stored="true"/>
> <field name="cAlbum" type="string" indexed="true" stored="true"/>
> <field name="cSong" type="string" indexed="true" stored="true"/>
> <field name="_root_" type="string" indexed="true" stored="true"/>
> <field name="_version_" type="long" indexed="true" stored="true"/>
> {code}
> Afterwards I add the following documents:
> {code}
> <add>
> <doc>
> <field name="id">1</field>
> <field name="pName">Test Artist 1</field>
> <field name="entityType">1</field>
> <doc>
> <field name="id">11</field>
> <field name="cAlbum">Test Album 1</field>
> <field name="cSong">Test Song 1</field>
> <field name="entityType">2</field>
> </doc>
> </doc>
> <doc>
> <field name="id">2</field>
> <field name="pName">Test Artist 2</field>
> <field name="entityType">1</field>
> <doc>
> <field name="id">22</field>
> <field name="cAlbum">Test Album 2</field>
> <field name="cSong">Test Song 2</field>
> <field name="entityType">2</field>
> </doc>
> </doc>
> </add>
> {code}
> After performing the following query
> {quote}
> http://localhost:8983/solr/collection1/select?q=%7B!parent+which%3DentityType%3A1%7D&fl=*%2Cscore%2C%5Bchild+parentFilter%3DentityType%3A1%5D&wt=json&indent=true
> {quote}
> I get a correct answer (child matches parent, check _root_ field)
> {code:title=add docs|borderStyle=solid}
> {
> "responseHeader":{
> "status":0,
> "QTime":1,
> "params":{
> "fl":"*,score,[child parentFilter=entityType:1]",
> "indent":"true",
> "q":"{!parent which=entityType:1}",
> "wt":"json"}},
> "response":{"numFound":2,"start":0,"maxScore":1.0,"docs":[
> {
> "id":"1",
> "pName":"Test Artist 1",
> "entityType":1,
> "_version_":1483832661048819712,
> "_root_":"1",
> "score":1.0,
> "_childDocuments_":[
> {
> "id":"11",
> "cAlbum":"Test Album 1",
> "cSong":"Test Song 1",
> "entityType":2,
> "_root_":"1"}]},
> {
> "id":"2",
> "pName":"Test Artist 2",
> "entityType":1,
> "_version_":1483832661050916864,
> "_root_":"2",
> "score":1.0,
> "_childDocuments_":[
> {
> "id":"22",
> "cAlbum":"Test Album 2",
> "cSong":"Test Song 2",
> "entityType":2,
> "_root_":"2"}]}]
> }}
> {code}
> Afterwards I try to update one document:
> {code:title=update doc|borderStyle=solid}
> <add>
> <doc>
> <field name="id">1</field>
> <field name="pName" update="set">INIT</field>
> </doc>
> </add>
> {code}
> After performing the previous query I get the right result (like the previous
> one but with the pName field updated).
> The problem only comes after performing an *optimize*.
> Now, the same query yields the following result:
> {code}
> {
> "responseHeader":{
> "status":0,
> "QTime":1,
> "params":{
> "fl":"*,score,[child parentFilter=entityType:1]",
> "indent":"true",
> "q":"{!parent which=entityType:1}",
> "wt":"json"}},
> "response":{"numFound":2,"start":0,"maxScore":1.0,"docs":[
> {
> "id":"2",
> "pName":"Test Artist 2",
> "entityType":1,
> "_version_":1483832661050916864,
> "_root_":"2",
> "score":1.0,
> "_childDocuments_":[
> {
> "id":"11",
> "cAlbum":"Test Album 1",
> "cSong":"Test Song 1",
> "entityType":2,
> "_root_":"1"},
> {
> "id":"22",
> "cAlbum":"Test Album 2",
> "cSong":"Test Song 2",
> "entityType":2,
> "_root_":"2"}]},
> {
> "id":"1",
> "pName":"INIT",
> "entityType":1,
> "_root_":"1",
> "_version_":1483832916867809280,
> "score":1.0}]
> }}
> {code}
> As can be seen, the document with id:2 now contains the child with id:11 that
> belongs to the document with id:1.
> I haven't found any references on the web about this except
> http://blog.griddynamics.com/2013/09/solr-block-join-support.html
> Similar issue: SOLR-6096
> Is this problem known? Is there a workaround for this?
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