Can't GET document with parent; also can I retrieve its _parent ID?

Elastic Stack Elasticsearch
1

Hi there,

Seeing two pieces of unexpected behavior here:

$ curl -s -XDELETE http://localhost:9200/?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPOST http://localhost:9200/test?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/_mapping?pretty=true -
d '{"post":{"properties":{"title":{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/comment/_mapping?pretty=true
-d '{"comment":{"_parent":{"type":"post"},"properties":{"content":
{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/1 -d '{"title":"Test
Post"}'
{"ok":true,"_index":"test","_type":"post","_id":"1","_version":1}
$ curl -s -XPUT 'http://localhost:9200/test/comment/2?
parent=1&pretty=true&refresh=true' -d '{"content":"Test Comment"}'
{
"ok" : true,
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_version" : 1
}
$ curl -s http://localhost:9200/test/comment/2?pretty=true
{
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"exists" : false
}
$ curl -s http://localhost:9200/test/comment/_search?pretty=true
{
"took" : 3,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 1,
"max_score" : 1.0,
"hits" : [ {
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_score" : 1.0, "_source" : {"content":"Test Comment"}
} ]
}
}

  1. It seems that I can't look up the document at all when I index it
    with a parent param.
  2. I note that the search result doesn't contain a reference to the
    parent. Is there a way to access the parent when retrieving the doc?

Am I doing something wrong?

Thanks!
Mat

2

  1. Because the parent parameter controls the routing, you need to provide
    the parent value in the routing parameter when you do a GET for the child
    document.

  2. Ask for _parent in the fields when you search / GET the doc. As for both
    _source and _parent if you want both.

On Sat, Oct 1, 2011 at 7:46 PM, Mat Brown mat.a.brown@gmail.com wrote:

Hi there,

Seeing two pieces of unexpected behavior here:

$ curl -s -XDELETE http://localhost:9200/?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPOST http://localhost:9200/test?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/_mapping?pretty=true -
d '{"post":{"properties":{"title":{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/comment/_mapping?pretty=true
-d '{"comment":{"_parent":{"type":"post"},"properties":{"content":
{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/1 -d '{"title":"Test
Post"}'
{"ok":true,"_index":"test","_type":"post","_id":"1","_version":1}
$ curl -s -XPUT 'http://localhost:9200/test/comment/2?
parent=1&pretty=true&refresh=true' -d '{"content":"Test Comment"}'
{
"ok" : true,
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_version" : 1
}
$ curl -s http://localhost:9200/test/comment/2?pretty=true
{
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"exists" : false
}
$ curl -s http://localhost:9200/test/comment/_search?pretty=true
{
"took" : 3,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 1,
"max_score" : 1.0,
"hits" : [ {
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_score" : 1.0, "_source" : {"content":"Test Comment"}
} ]
}
}

  1. It seems that I can't look up the document at all when I index it
    with a parent param.
  2. I note that the search result doesn't contain a reference to the
    parent. Is there a way to access the parent when retrieving the doc?

Am I doing something wrong?

Thanks!
Mat

3

Thank you!!!
On Oct 2, 2011 6:14 AM, "Shay Banon" kimchy@gmail.com wrote:

  1. Because the parent parameter controls the routing, you need to provide
    the parent value in the routing parameter when you do a GET for the child
    document.

  2. Ask for _parent in the fields when you search / GET the doc. As for
    both
    _source and _parent if you want both.

On Sat, Oct 1, 2011 at 7:46 PM, Mat Brown mat.a.brown@gmail.com wrote:

Hi there,

Seeing two pieces of unexpected behavior here:

$ curl -s -XDELETE http://localhost:9200/?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPOST http://localhost:9200/test?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/_mapping?pretty=true -
d '{"post":{"properties":{"title":{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/comment/_mapping?pretty=true
-d '{"comment":{"_parent":{"type":"post"},"properties":{"content":
{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/1 -d '{"title":"Test
Post"}'
{"ok":true,"_index":"test","_type":"post","_id":"1","_version":1}
$ curl -s -XPUT 'http://localhost:9200/test/comment/2?
parent=1&pretty=true&refresh=true' -d '{"content":"Test Comment"}'
{
"ok" : true,
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_version" : 1
}
$ curl -s http://localhost:9200/test/comment/2?pretty=true
{
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"exists" : false
}
$ curl -s http://localhost:9200/test/comment/_search?pretty=true
{
"took" : 3,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 1,
"max_score" : 1.0,
"hits" : [ {
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_score" : 1.0, "_source" : {"content":"Test Comment"}
} ]
}
}

  1. It seems that I can't look up the document at all when I index it
    with a parent param.
  2. I note that the search result doesn't contain a reference to the
    parent. Is there a way to access the parent when retrieving the doc?

Am I doing something wrong?

Thanks!
Mat

4

Hey Shay,

No such luck:

$ curl -s -XDELETE 'http://localhost:9200/?pretty=true'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPOST 'http://localhost:9200/test?pretty=true'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT 'http://localhost:9200/test/post/_mapping?pretty=true'
-d '{"post":{"properties":{"title":{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT
'http://localhost:9200/test/comment/_mapping?pretty=true' -d
'{"comment":{"_parent":{"type":"post"},"properties":{"content":
{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/1 -d '{"title":"Test Post"}'
{"ok":true,"_index":"test","_type":"post","_id":"1","_version":1}
$ curl -s -XPUT
'http://localhost:9200/test/comment/2?parent=1&pretty=true&refresh=true'
-d '{"content":"Test Comment"}'
{
"ok" : true,
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_version" : 1
}
$ curl -s 'http://localhost:9200/test/comment/2?parent=1&pretty=true'
{
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"exists" : false
}
$ curl -s 'http://localhost:9200/test/comment/_search?pretty=true'
{
"took" : 2,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 1,
"max_score" : 1.0,
"hits" : [ {
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_score" : 1.0, "_source" : {"content":"Test Comment"}
} ]
}
}

Anything else I might be doing wrong? Thanks!

Mat

On Sun, Oct 2, 2011 at 10:27, Matthew A. Brown mat.a.brown@gmail.com wrote:

Thank you!!!

On Oct 2, 2011 6:14 AM, "Shay Banon" kimchy@gmail.com wrote:

  1. Because the parent parameter controls the routing, you need to provide
    the parent value in the routing parameter when you do a GET for the child
    document.

  2. Ask for _parent in the fields when you search / GET the doc. As for
    both
    _source and _parent if you want both.

On Sat, Oct 1, 2011 at 7:46 PM, Mat Brown mat.a.brown@gmail.com wrote:

Hi there,

Seeing two pieces of unexpected behavior here:

$ curl -s -XDELETE http://localhost:9200/?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPOST http://localhost:9200/test?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/_mapping?pretty=true -
d '{"post":{"properties":{"title":{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/comment/_mapping?pretty=true
-d '{"comment":{"_parent":{"type":"post"},"properties":{"content":
{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/1 -d '{"title":"Test
Post"}'
{"ok":true,"_index":"test","_type":"post","_id":"1","_version":1}
$ curl -s -XPUT 'http://localhost:9200/test/comment/2?
parent=1&pretty=true&refresh=true' -d '{"content":"Test Comment"}'
{
"ok" : true,
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_version" : 1
}
$ curl -s http://localhost:9200/test/comment/2?pretty=true
{
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"exists" : false
}
$ curl -s http://localhost:9200/test/comment/_search?pretty=true
{
"took" : 3,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 1,
"max_score" : 1.0,
"hits" : [ {
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_score" : 1.0, "_source" : {"content":"Test Comment"}
} ]
}
}

  1. It seems that I can't look up the document at all when I index it
    with a parent param.
  2. I note that the search result doesn't contain a reference to the
    parent. Is there a way to access the parent when retrieving the doc?

Am I doing something wrong?

Thanks!
Mat

5

From briefly looking at it (on the go...), you should pass routing=1 for the
get request, there is no handle for parent (which effectively is the
routing).

On Tue, Oct 4, 2011 at 6:22 PM, Matthew A. Brown mat.a.brown@gmail.comwrote:

Hey Shay,

No such luck:

$ curl -s -XDELETE 'http://localhost:9200/?pretty=true'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPOST 'http://localhost:9200/test?pretty=true'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT 'http://localhost:9200/test/post/_mapping?pretty=true'
-d '{"post":{"properties":{"title":{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT
'http://localhost:9200/test/comment/_mapping?pretty=true' -d
'{"comment":{"_parent":{"type":"post"},"properties":{"content":
{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/1 -d '{"title":"Test
Post"}'
{"ok":true,"_index":"test","_type":"post","_id":"1","_version":1}
$ curl -s -XPUT
'http://localhost:9200/test/comment/2?parent=1&pretty=true&refresh=true'
-d '{"content":"Test Comment"}'
{
"ok" : true,
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_version" : 1
}
$ curl -s 'http://localhost:9200/test/comment/2?parent=1&pretty=true'
{
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"exists" : false
}
$ curl -s 'http://localhost:9200/test/comment/_search?pretty=true'
{
"took" : 2,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 1,
"max_score" : 1.0,
"hits" : [ {
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_score" : 1.0, "_source" : {"content":"Test Comment"}
} ]
}
}

Anything else I might be doing wrong? Thanks!

Mat

On Sun, Oct 2, 2011 at 10:27, Matthew A. Brown mat.a.brown@gmail.com
wrote:

Thank you!!!

On Oct 2, 2011 6:14 AM, "Shay Banon" kimchy@gmail.com wrote:

  1. Because the parent parameter controls the routing, you need to
    provide
    the parent value in the routing parameter when you do a GET for the
    child
    document.

  2. Ask for _parent in the fields when you search / GET the doc. As for
    both
    _source and _parent if you want both.

On Sat, Oct 1, 2011 at 7:46 PM, Mat Brown mat.a.brown@gmail.com
wrote:

Hi there,

Seeing two pieces of unexpected behavior here:

$ curl -s -XDELETE http://localhost:9200/?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPOST http://localhost:9200/test?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/_mapping?pretty=true -
d '{"post":{"properties":{"title":{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT
http://localhost:9200/test/comment/_mapping?pretty=true
-d '{"comment":{"_parent":{"type":"post"},"properties":{"content":
{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/1 -d '{"title":"Test
Post"}'
{"ok":true,"_index":"test","_type":"post","_id":"1","_version":1}
$ curl -s -XPUT 'http://localhost:9200/test/comment/2?
parent=1&pretty=true&refresh=true' -d '{"content":"Test Comment"}'
{
"ok" : true,
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_version" : 1
}
$ curl -s http://localhost:9200/test/comment/2?pretty=true
{
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"exists" : false
}
$ curl -s http://localhost:9200/test/comment/_search?pretty=true
{
"took" : 3,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 1,
"max_score" : 1.0,
"hits" : [ {
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_score" : 1.0, "_source" : {"content":"Test Comment"}
} ]
}
}

  1. It seems that I can't look up the document at all when I index it
    with a parent param.
  2. I note that the search result doesn't contain a reference to the
    parent. Is there a way to access the parent when retrieving the doc?

Am I doing something wrong?

Thanks!
Mat

6

Ah, got it. Thank you! So the routing param should just always be
the parent ID?

On Tue, Oct 4, 2011 at 10:48, Shay Banon kimchy@gmail.com wrote:

From briefly looking at it (on the go...), you should pass routing=1 for the
get request, there is no handle for parent (which effectively is the
routing).

On Tue, Oct 4, 2011 at 6:22 PM, Matthew A. Brown mat.a.brown@gmail.com
wrote:

Hey Shay,

No such luck:

$ curl -s -XDELETE 'http://localhost:9200/?pretty=true'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPOST 'http://localhost:9200/test?pretty=true'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT 'http://localhost:9200/test/post/_mapping?pretty=true'
-d '{"post":{"properties":{"title":{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT
'http://localhost:9200/test/comment/_mapping?pretty=true' -d
'{"comment":{"_parent":{"type":"post"},"properties":{"content":
{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/1 -d '{"title":"Test
Post"}'
{"ok":true,"_index":"test","_type":"post","_id":"1","_version":1}
$ curl -s -XPUT
'http://localhost:9200/test/comment/2?parent=1&pretty=true&refresh=true'
-d '{"content":"Test Comment"}'
{
"ok" : true,
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_version" : 1
}
$ curl -s 'http://localhost:9200/test/comment/2?parent=1&pretty=true'
{
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"exists" : false
}
$ curl -s 'http://localhost:9200/test/comment/_search?pretty=true'
{
"took" : 2,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 1,
"max_score" : 1.0,
"hits" : [ {
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_score" : 1.0, "_source" : {"content":"Test Comment"}
} ]
}
}

Anything else I might be doing wrong? Thanks!

Mat

On Sun, Oct 2, 2011 at 10:27, Matthew A. Brown mat.a.brown@gmail.com
wrote:

Thank you!!!

On Oct 2, 2011 6:14 AM, "Shay Banon" kimchy@gmail.com wrote:

  1. Because the parent parameter controls the routing, you need to
    provide
    the parent value in the routing parameter when you do a GET for the
    child
    document.

  2. Ask for _parent in the fields when you search / GET the doc. As for
    both
    _source and _parent if you want both.

On Sat, Oct 1, 2011 at 7:46 PM, Mat Brown mat.a.brown@gmail.com
wrote:

Hi there,

Seeing two pieces of unexpected behavior here:

$ curl -s -XDELETE http://localhost:9200/?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPOST http://localhost:9200/test?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/_mapping?pretty=true -
d '{"post":{"properties":{"title":{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT
http://localhost:9200/test/comment/_mapping?pretty=true
-d '{"comment":{"_parent":{"type":"post"},"properties":{"content":
{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/1 -d '{"title":"Test
Post"}'
{"ok":true,"_index":"test","_type":"post","_id":"1","_version":1}
$ curl -s -XPUT 'http://localhost:9200/test/comment/2?
parent=1&pretty=true&refresh=true' -d '{"content":"Test Comment"}'
{
"ok" : true,
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_version" : 1
}
$ curl -s http://localhost:9200/test/comment/2?pretty=true
{
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"exists" : false
}
$ curl -s http://localhost:9200/test/comment/_search?pretty=true
{
"took" : 3,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 1,
"max_score" : 1.0,
"hits" : [ {
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_score" : 1.0, "_source" : {"content":"Test Comment"}
} ]
}
}

  1. It seems that I can't look up the document at all when I index it
    with a parent param.
  2. I note that the search result doesn't contain a reference to the
    parent. Is there a way to access the parent when retrieving the doc?

Am I doing something wrong?

Thanks!
Mat

7

Yes, this is effectively what happens when you set the parent value when
indexing.

On Tue, Oct 4, 2011 at 6:54 PM, Matthew A. Brown mat.a.brown@gmail.comwrote:

Ah, got it. Thank you! So the routing param should just always be
the parent ID?

On Tue, Oct 4, 2011 at 10:48, Shay Banon kimchy@gmail.com wrote:

From briefly looking at it (on the go...), you should pass routing=1 for
the
get request, there is no handle for parent (which effectively is the
routing).

On Tue, Oct 4, 2011 at 6:22 PM, Matthew A. Brown mat.a.brown@gmail.com
wrote:

Hey Shay,

No such luck:

$ curl -s -XDELETE 'http://localhost:9200/?pretty=true'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPOST 'http://localhost:9200/test?pretty=true'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT 'http://localhost:9200/test/post/_mapping?pretty=true'
-d '{"post":{"properties":{"title":{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT
'http://localhost:9200/test/comment/_mapping?pretty=true' -d
'{"comment":{"_parent":{"type":"post"},"properties":{"content":
{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/1 -d '{"title":"Test
Post"}'
{"ok":true,"_index":"test","_type":"post","_id":"1","_version":1}
$ curl -s -XPUT
'http://localhost:9200/test/comment/2?parent=1&pretty=true&refresh=true
'
-d '{"content":"Test Comment"}'
{
"ok" : true,
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_version" : 1
}
$ curl -s 'http://localhost:9200/test/comment/2?parent=1&pretty=true'
{
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"exists" : false
}
$ curl -s 'http://localhost:9200/test/comment/_search?pretty=true'
{
"took" : 2,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 1,
"max_score" : 1.0,
"hits" : [ {
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_score" : 1.0, "_source" : {"content":"Test Comment"}
} ]
}
}

Anything else I might be doing wrong? Thanks!

Mat

On Sun, Oct 2, 2011 at 10:27, Matthew A. Brown mat.a.brown@gmail.com
wrote:

Thank you!!!

On Oct 2, 2011 6:14 AM, "Shay Banon" kimchy@gmail.com wrote:

  1. Because the parent parameter controls the routing, you need to
    provide
    the parent value in the routing parameter when you do a GET for the
    child
    document.

  2. Ask for _parent in the fields when you search / GET the doc. As
    for
    both
    _source and _parent if you want both.

On Sat, Oct 1, 2011 at 7:46 PM, Mat Brown mat.a.brown@gmail.com
wrote:

Hi there,

Seeing two pieces of unexpected behavior here:

$ curl -s -XDELETE http://localhost:9200/?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPOST http://localhost:9200/test?pretty=true
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT
http://localhost:9200/test/post/_mapping?pretty=true -
d '{"post":{"properties":{"title":{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT
http://localhost:9200/test/comment/_mapping?pretty=true
-d '{"comment":{"_parent":{"type":"post"},"properties":{"content":
{"type":"string"}}}}'
{
"ok" : true,
"acknowledged" : true
}
$ curl -s -XPUT http://localhost:9200/test/post/1 -d
'{"title":"Test
Post"}'
{"ok":true,"_index":"test","_type":"post","_id":"1","_version":1}
$ curl -s -XPUT 'http://localhost:9200/test/comment/2?
parent=1&pretty=true&refresh=true' -d '{"content":"Test Comment"}'
{
"ok" : true,
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_version" : 1
}
$ curl -s http://localhost:9200/test/comment/2?pretty=true
{
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"exists" : false
}
$ curl -s http://localhost:9200/test/comment/_search?pretty=true
{
"took" : 3,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 1,
"max_score" : 1.0,
"hits" : [ {
"_index" : "test",
"_type" : "comment",
"_id" : "2",
"_score" : 1.0, "_source" : {"content":"Test Comment"}
} ]
}
}

  1. It seems that I can't look up the document at all when I index it
    with a parent param.
  2. I note that the search result doesn't contain a reference to the
    parent. Is there a way to access the parent when retrieving the doc?

Am I doing something wrong?

Thanks!
Mat