Addition/Deletion Operation on Nested Documents

Deepak_Chezhian · September 19, 2012, 5:10am

Hi,

I have an use case in which i am often adding or removing the nested
documents but there is no change in the parent document. Is it possible to
do Add or Remove nested documents without re-indexing the whole parent
document?

Regards,
Deepak

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Lukas_Vlcek1 · September 19, 2012, 7:31am

Simple answer: no

I think it would be theoretically possible to delete the nested document at
the Lucene level but elasticsearch does not have API for that.

Lukas
Dne 19.9.2012 7:10 "Deepak Chezhian" cdeepakcse@gmail.com napsal(a):

Hi,

I have an use case in which i am often adding or removing the nested
documents but there is no change in the parent document. Is it possible to
do Add or Remove nested documents without re-indexing the whole parent
document?

Regards,
Deepak

--

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Lukas_Vlcek1 · September 19, 2012, 7:35am

BTW: if you did not disable _source you might want to look at Update API,
it does reindexing for you but gives you an elegant shortcut for that.
Dne 19.9.2012 9:31 "Lukáš Vlček" lukas.vlcek@gmail.com napsal(a):

Simple answer: no

I think it would be theoretically possible to delete the nested document
at the Lucene level but elasticsearch does not have API for that.

Lukas
Dne 19.9.2012 7:10 "Deepak Chezhian" cdeepakcse@gmail.com napsal(a):

Hi,

I have an use case in which i am often adding or removing the nested
documents but there is no change in the parent document. Is it possible to
do Add or Remove nested documents without re-indexing the whole parent
document?

Regards,
Deepak

--

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Deepak_Chezhian · September 19, 2012, 11:24am

Hi Lukas,

I tried update api with scripting, am able to add nested document but am
not able to remove the existing documents.

I have used the examples in the following url for creating index and
documents.

gist.github.com

https://gist.github.com/lukas-vlcek/3739469

gistfile1.sh

#!/bin/sh

echo "\n --- delete index"
curl -X DELETE 'http://localhost:9200/'

echo "\n --- create index and put mapping into place"
curl -X POST 'http://localhost:9200/myindex/' -d '{
    "mappings" : {
        "person" : {
            "properties" : {

This file has been truncated. show original

For Addition, i have tried the following query. It worked.

{
"script" : "ctx._source.works += work",
"params" : {
"work" : {
"title" : "dad",
"current" : true
}
}
}

For removal, i have used the following query but it doesnt work.

{
"script" : "ctx._source.works -= work",
"params" : {
"work" : {
"title" : "dad",
"current" : true
}
}
}

Is there any other way of adding or removing documents from the nested
documents using update api.

Regards,
Deepak

On Wednesday, 19 September 2012 11:35:36 UTC+4, Lukáš Vlček wrote:

BTW: if you did not disable _source you might want to look at Update API,
it does reindexing for you but gives you an elegant shortcut for that.
Dne 19.9.2012 9:31 "Lukáš Vlček" <lukas...@gmail.com <javascript:>>
napsal(a):

Simple answer: no

I think it would be theoretically possible to delete the nested document
at the Lucene level but elasticsearch does not have API for that.

Lukas
Dne 19.9.2012 7:10 "Deepak Chezhian" <cdeep...@gmail.com <javascript:>>
napsal(a):

Hi,

I have an use case in which i am often adding or removing the nested
documents but there is no change in the parent document. Is it possible to
do Add or Remove nested documents without re-indexing the whole parent
document?

Regards,
Deepak

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