Extract id field

Hi,
following the documentation here
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/mapping-id-field.html

I've declared path mapping between _id and a field named "table_id",
but when doing query the result doesn't contain the table_id field.

Looking at the example in the doc, it contains the post_id field.

This is the mapping:

{
"test" : {
"mappings" : {
"table" : {
"_id" : {
"path" : "table_id"
},
"properties" : {
"name" : {
"type" : "string",
"store" : true
},
"table_id" : {
"type" : "long",
"store" : true
}
}
}
}
}

am I missing anything?
Thanks

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Could you create a full script which would help to understand what you exactly did?

See http://www.elasticsearch.org/help/

--
David Pilato | Technical Advocate | Elasticsearch.com
@dadoonet | @elasticsearchfr

Le 18 juillet 2014 à 14:48:18, Giuseppe Longo (giuseppelng@gmail.com) a écrit:

Hi,
following the documentation here http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/mapping-id-field.html
I've declared path mapping between _id and a field named "table_id",
but when doing query the result doesn't contain the table_id field.

Looking at the example in the doc, it contains the post_id field.

This is the mapping:

{
"test" : {
"mappings" : {
"table" : {
"_id" : {
"path" : "table_id"
},
"properties" : {
"name" : {
"type" : "string",
"store" : true
},
"table_id" : {
"type" : "long",
"store" : true
}
}
}
}
}

am I missing anything?
Thanks

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Hi David,
you can find the script here: http://pastebin.com/6EdQSCft

As you can see, the result of GET request is:

{name: "test"}

but it should be:

{
table_id: 1
name: "test"
}

Thanks

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I see.

Actually, setting path to _id do exactly the opposite as what you are expecting:

It extracts at index time the _id value from the source document.

So, if you send a document like:

{
"table_id":"my_id"
}

The elasticsearch document id for this doc will be "my_id".

Makes sense?

--
David Pilato | Technical Advocate | Elasticsearch.com
@dadoonet | @elasticsearchfr

Le 18 juillet 2014 à 15:13:49, Giuseppe Longo (giuseppelng@gmail.com) a écrit:

Hi David,
you can find the script here: http://pastebin.com/6EdQSCft

As you can see, the result of GET request is:

{name: "test"}

but it should be:

{
table_id: 1
name: "test"
}

Thanks

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I'm not sure to understand you.
I've followed step by step the tutorial, it's strange that setting path to
_id do the opposite currently, or not?

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If you are referring to http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/mapping-id-field.html#mapping-id-field

It describes what I wrote.

The _id mapping can also be associated with a path that will be used to extract the id from a different location in the source document. For example, having the following mapping:

{
"tweet" : {
"_id" : {
"path" : "post_id"
}
}
}
Will cause 1 to be used as the id for:

{
"message" : "You know, for Search",
"post_id" : "1"
}

^^^^ This means that if you send the above document, elasticsearch will extract the _id from the _source.post_id field.

Elasticsearch never modifies your _source document (unless you use scripts or include/exclude features).

--
David Pilato | Technical Advocate | Elasticsearch.com
@dadoonet | @elasticsearchfr

Le 18 juillet 2014 à 15:21:24, Giuseppe Longo (giuseppelng@gmail.com) a écrit:

I'm not sure to understand you.
I've followed step by step the tutorial, it's strange that setting path to _id do the opposite currently, or not?

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It's clear now thanks, I'd ask another question:
There is a way to include the _id into the response for a GET request?

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It's already here:

GET test/test/1

{
"_index": "test",
"_type": "test",
"_id": "1",
"_version": 1,
"found": true,
"_source": {
"foo": "bar"
}
}

--
David Pilato | Technical Advocate | Elasticsearch.com
@dadoonet | @elasticsearchfr

Le 18 juillet 2014 à 15:28:48, Giuseppe Longo (giuseppelng@gmail.com) a écrit:

It's clear now thanks, I'd ask another question:
There is a way to include the _id into the response for a GET request?

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Ok, then I can extract it directly.
Thanks for your clarification :slight_smile:

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Why do you want to extract something you already have?

I mean that when you run GET /index/type/id

You already know the id!

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David :wink:
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs

Le 18 juil. 2014 à 15:35, Giuseppe Longo giuseppelng@gmail.com a écrit :

Ok, then I can extract it directly.
Thanks for your clarification :slight_smile:

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