nested-problem

description.md

1. Create an index

    solr create -c nested
   

2. Index two documents, where one is nested.

    curl localhost:8983/solr/a/update -d '<add>
       <doc>
         <field name="id">friend</field>
         <field name="type">other</field>
       </doc>
       <doc>
         <field name="id">mother</field>
         <field name="type">parent</field>
         <doc>
           <field name="id">daughter</field>
           <field name="type">child</field>
         </doc>
       </doc>
     </add>'
   

3. Search for children of "mother"

    curl "localhost:8983/solr/a/query?q=id:mother&fl=%2A%2C%5Bchild%20parentFilter%3Dtype%3Aparent%5D” 
   

   You get "friend" mistakenly in the list of children

4. Now index same two docs again, but in opposite order

    curl localhost:8983/solr/a/update -d '<add>
       <doc>
         <field name="id">mother</field>
         <field name="type">parent</field>
         <doc>
           <field name="id">daughter</field>
           <field name="type">child</field>
         </doc>
       </doc>
       <doc>
         <field name="id">friend</field>
         <field name="type">other</field>
       </doc>
     </add>'
   

5. Search again

    curl "localhost:8983/solr/a/query?q=id:mother&fl=%2A%2C%5Bchild%20parentFilter%3Dtype%3Aparent%5D” 
   

   You now only get "daughter" as child of "mother"

Why?