HasChild query picks wrong type

[MrHash]

Given the following setup:

curl -XPUT 'http://localhost:9200/haschildtest/'

curl -XPUT 'localhost:9200/haschildtest/posts/_mapping' -d '
{
   "posts":{
      "_parent":{
         "type":"features"
      },
      "_routing":{
         "required":true
      }
   }
}'

curl -XPUT 'localhost:9200/haschildtest/features/feature1' -d '
{
   "title": "feature title 1"
}'

curl -XPUT 'localhost:9200/haschildtest/posts/post1?parent=feature1' -d '
{
   "specials":{
      "title": "jack"
   }
}'

curl -XPUT 'localhost:9200/haschildtest/specials/special1' -d '
{
   "title": "this somehow interferes with the has_child query"
}'

This query runs correctly:

curl -XPOST 'localhost:9200/haschildtest/features/_search?pretty=true' -d '
{
   "query": {
      "has_child": {
         "type": "posts",
         "query": {
            "match": {
               "specials.title": "jack"
            }
         }
      }
   }
}'

Whereas this query with the parent type specifed after the query, fails:

curl -XPOST 'localhost:9200/haschildtest/features/_search?pretty=true' -d '
{
   "query": {
      "has_child": {
         "query": {
            "match": {
               "specials.title": "jack"
            }
         },
         "type": "posts"
      }
   }
}'

Somehow the second example is picking the specials type title field instead of the type specified in the has_child block. I have tested this on ES 1.0.2 and took me a while to figure out what was going on...

[clintongormley]

Also see #5399

[MrHash]

I'm not entirely sure if these are related issues. The curiosity here is the position of type in the query. Why should its positioning after the match query affect the results?

[s1monw]

I think it's simply ignored and then you don't have a type restriction seems like a bug

[dakrone]

@MrHash this is a bug with the way that has_child queries are parsed before parsing out the "type" field, I'm working on a fix for this.

[fanbiao]

when i use has_child to index and search ,i get no result return ,why?i have use losts of es version.please help me.

[clintongormley]

@fanbiao Please ask these questions on the mailing list

[fanbiao]

we could not retrieve the child document _source when i use parent-child query,how can i do that?