merge properties from multiple neo4j nodes into one elasticsearch document possible?

[bbernhard]

Hi,

thanks for all the great work! I just tried neo4j-elasticsearch with the example provided in the documentation. That worked out of the box, without any problems. ;)
Now I would like to do something more advaned with neo4j-elasticsearch and I am not really sure if that's possible.

I have the following neo4j schema
User-[WORKS_AT]->Location
and I would like to merge properties from both the User node and the Location node together into
one elasticsearch document.

Is that somehow possible?

Greetings from Austria,
Bernhard

[jexp]

One option is just to take the source and adapt it to your needs.
I think generalizing this, might be a bit of a stretch.

Then we would have to allow an additional config that creates derived properties out of a cypher query.
While it would be possible, and neat. I don't have the bandwidth right now to implement it.

Something like this:

elasticsearch.project_User=WITH _ as user MATCH (user)-[:WORKS_AT]->(l) RETURN user.name as name, location.address as address

would then store name and address properties in the ES index.

elasticsearch.project_User=WITH _ as user MATCH (user)-[:WORKS_AT]->(l) RETURN {name:user.name, loc:location.address} as info

would then store an info property in ES

[santosh-hegde]

Hi,

Is possible to index the nodes which satisfies some conditions.

for example: user:USER(id) where user.id="Santosh"

[jexp]

You could use the elasticsearch integreation of
https://github.com/neo4j-contrib/neo4j-apoc-procedures to achieve that kind
of one-off indexing, e.g. combined with the triggers there.

Here it would add a lot of complexity as you would have to define the
filter-queries which are then run on every update.

Michael

On Fri, Nov 18, 2016 at 9:55 AM, santosh-hegde [email protected]
wrote:

Hi,

Is possible to index the nodes which satisfies some conditions.

for example: user:USER(id) where user.id="Santosh"

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[jexp]

Would the apoc approach work for you @santosh-hegde ?

[santosh-hegde]

Hi Michael,

I didn't try executing APOC Procedure. But elasticsearch.project_User=WITH _ as user MATCH (user)-[:WORKS_AT]->(l) RETURN {name:user.name, loc:location.address} as info is not working to me.