Hierarchical/parent-chid mapping with ElasticSearch -



Hierarchical/parent-chid mapping with ElasticSearch -

i've info looks like:

{ "id": 321, "name": "parent 1", "childs":[ { "id": 3211, "name": "child 1", "data": "some data" }, { "id": 3212, "name": "child 2" }, { "id": 3213, "name": "child 3" } ] }

now want query elasticsearch childs has no "data" result this:

[ { "id":321, "childs":[ 3212, 3213 ] } ]

i read nested objects , parent-child relations in documentation. think need parent-child relation, _id childs , query _ids , not sources.

can help me this?

thank you

you need parent-child. here's mapping:

post /my_index { "mappings": { "parents": { "properties": { "name": { "type": "string" } } }, "children": { "_parent": { "type": "parents" }, "properties": { "id": { "type": "integer" }, "name": { "type": "string" }, "data": { "type": "string" } } } } }

sample data:

post /my_index/parents/_bulk {"index":{"_id": 1}} {"name":"parent 1"} {"index":{"_id": 2}} {"name":"parent 2"} {"index":{"_id": 3}} {"name":"parent 3"} post /my_index/children/_bulk {"index":{"_id": 1, "parent": 1}} {"name":"child 1","data":"some data"} {"index":{"_id": 2, "parent": 1}} {"name":"child 2"} {"index":{"_id": 3, "parent": 1}} {"name":"child 3"} {"index":{"_id": 4, "parent": 2}} {"name":"child 4","data":"some info 4"} {"index":{"_id": 5, "parent": 2}} {"name":"child 5","data":"some info 5"} {"index":{"_id": 6, "parent": 2}} {"name":"child 6"} {"index":{"_id": 7, "parent": 3}} {"name":"child 7","data":"some info 7"} {"index":{"_id": 8, "parent": 3}} {"name":"child 8","data":"some info 8"} {"index":{"_id": 9, "parent": 3}} {"name":"child 9","data":"some info 9"}

and query itself:

get my_index/children/_search { "size": 0, "query": { "filtered": { "filter": { "missing": { "field": "data" } } } }, "aggs": { "missing_data": { "terms": { "field": "_parent" }, "aggs": { "top_children": { "top_hits": { "_source": "_parent" } } } } } }

in format want not possible, above query id of parent , each parent ids of children grouped parent.

elasticsearch

Comments

Post a Comment

Popular posts from this blog

xslt - DocBook 5 to PDF transform failing with error: "fo:flow" is missing child elements. Required content model: marker* -

xslt - DocBook 5 to PDF transform failing with error: "fo:flow" is missing child elements. Required content model: marker* - i've inherited doc publishing process takes docbook , builds html , pdf output, using apache fop both. project had been started, never completed. lots of tweaking, i've able of doc sets build (20+), except handful, , fail severe code 1 of these 2 conditions: "fo:flow" missing kid elements. required content model: marker* "fo:block" not valid kid of "fo:root" the xml output comes out of docbook , docbook-fop checks out well-formed. the fop error in 1 book, "endecagloss", example, points end of string: <fo:flow flow-name="xsl-region-body" start-indent="4pc" end-indent="0pt"/> here’s log output in case: [java] severe: javax.xml.transform.transformerexception: file:/scratch/publishing/hudson/jobs/build-main-endeca-documentation/workspace/serverdoc/w...
Read more

mediawiki - How do I insert tables inside infoboxes on Wikia pages? -

mediawiki - How do I insert tables inside infoboxes on Wikia pages? - i want insert tables in infoboxes. example, have proteinbox i've developed using infobox template (http://health-and-medicine.wikia.com/wiki/template:proteinbox), , fasta field big fit comfortably in proteinbox. hence collapsible table within box. this tried: {{infobox | row 1 = {| class = "mw-collapsible mw-collapsed wikitable" |- | <!-- table content --> |} }} your problem is, putting nested table within template. pipe characters ( | ) in table syntax collides pipe usage in templates. the commonly used hack around create template called template:! , containing pipe character, , utilize when need set tables, parser functions or other stuff using pipe characters, within templates. table (with every | replaced {{!}} ): {{{!}} {{!}}- {{!}} a1 {{!}} b1 {{!}}- {{!}} a2 {{!}} b2 {{!}}} ...the equivalent of {| |- | a1 | b1 |- | a2 | b2 |} furthermore, hav...
Read more

Local Service User Logged into Windows -

Local Service User Logged into Windows - i created windows service tracks app server user connected through load balancer. it retrieves user logged windows on machine, cross references active directory (ad) business relationship homecoming first name, lastly name , e-mail (for notification through website created project) there 1 scheme on network users remote system, vista system, reason returning values "local service" logged machine, it's weird , security guys impossible "local service" business relationship logged windows. here how user logged windows managementscope ms = new managementscope("\\\\.\\root\\cimv2"); objectquery query = new objectquery("select * win32_computersystem"); managementobjectsearcher searcher = new managementobjectsearcher(ms, query); foreach (managementobject mo in searcher.get()) { _username = mo["username"].tostring(); } // remove domain part username string[] usernameparts = _...
Read more