Inner hits on grandparents still not working - elasticsearch

Question

I have problems retrieving the inner_hits of my "grandparent" items.
Parents from a child query works fine, but cant get it to return also the ones one more level up.
Any ideas of this?
The known issue for this should be fixed by now (2.3) and the workaround are written according to nested objects, not parent/child hierarchy data, so cant get it to work for me.
Code in Sense-format:
POST /test/child/_search
{
"query": {
"has_parent": {
"type": "parent",
"query": {
"has_parent": {
"type": "grandparent",
"query": {
"match_all": {}
},
"inner_hits": {}
}
},
"inner_hits": {}
}
}
}
PUT /test/child/3?parent=2&routing=1
{
"id": 3,
"name": "child",
"parentid": 2
}
PUT /test/parent/2?parent=1&routing=1
{
"id": 2,
"name": "parent",
"parentid": 1
}
PUT /test/grandparent/1
{
"id": 1,
"name": "grandparent"
}
PUT /test
{
"mappings": {
"grandparent": {},
"parent": {
"_parent": {
"type": "grandparent"
}
},
"child": {
"_parent": {
"type": "parent"
}
}
}
}

Answer 1

this is sample code for finding grand parent
const filterPath = `hits.hits.inner_hits.activity.hits.hits.inner_hits.user.hits.hits._source*,
hits.hits.inner_hits.activity.hits.hits.inner_hits.user.hits.hits.inner_hits.fofo.hits.hits._source*`;
const source = ['id', 'name', 'thumbnail'];
const { body } = await elasticWrapper.client.search({
index: ElasticIndex.UserDataFactory,
filter_path: filterPath,
_source: source,
body: {
from,
size,
query: {
bool: {
must: [
{
match: {
relation_type: ElasticRelationType.Like,
},
},
{
has_parent: {
parent_type: ElasticRelationType.Post,
query: {
bool: {
must: [
{
term: {
id: {
value: req.params.id,
},
},
},
{
has_parent: {
parent_type: ElasticRelationType.User,
query: {
bool: {
must: [
{
exists: {
field: 'id',
},
},
],
should: [
{
has_child: {
type: ElasticRelationType.Follower,
query: {
bool: {
minimum_should_match: 1,
should: [
{
match: {
follower:
req.currentUser?.id,
},
},
{
match: {
following:
req.currentUser?.id,
},
},
],
},
},
inner_hits: {
_source: [
'follower',
'following',
'status',
],
},
},
},
],
},
},
inner_hits: {
_source: ['id', 'name', 'thumbnail'],
},
},
},
],
},
},
inner_hits: {},
},
},
],
},
},
sort: [
{
createdAt: {
order: 'desc',
},
},
],
},
});