cd61e30bb3
* Updated examples urls * Added links to examples * Updated docs generation script to include code examples * Fixes * Skip index api * Fix link * Fix url generation * API generation * Fix new line * API generation * Fix leftover * API generation
60 lines
1.2 KiB
Plaintext
60 lines
1.2 KiB
Plaintext
[[update_by_query_examples]]
|
|
== Update By Query
|
|
|
|
The simplest usage of _update_by_query just performs an update on every document in the index without changing the source. This is useful to pick up a new property or some other online mapping change.
|
|
|
|
[source,js]
|
|
---------
|
|
'use strict'
|
|
|
|
const { Client } = require('@elastic/elasticsearch')
|
|
const client = new Client({ node: 'http://localhost:9200' })
|
|
|
|
async function run () {
|
|
await client.index({
|
|
index: 'game-of-thrones',
|
|
body: {
|
|
character: 'Ned Stark',
|
|
quote: 'Winter is coming.'
|
|
}
|
|
})
|
|
|
|
await client.index({
|
|
index: 'game-of-thrones',
|
|
refresh: true,
|
|
body: {
|
|
character: 'Arya Stark',
|
|
quote: 'A girl is Arya Stark of Winterfell. And I\'m going home.'
|
|
}
|
|
})
|
|
|
|
await client.updateByQuery({
|
|
index: 'game-of-thrones',
|
|
refresh: true,
|
|
body: {
|
|
script: {
|
|
lang: 'painless',
|
|
source: 'ctx._source["house"] = "stark"'
|
|
},
|
|
query: {
|
|
match: {
|
|
character: 'stark'
|
|
}
|
|
}
|
|
}
|
|
})
|
|
|
|
const { body } = await client.search({
|
|
index: 'game-of-thrones',
|
|
body: {
|
|
query: { match_all: {} }
|
|
}
|
|
})
|
|
|
|
console.log(body.hits.hits)
|
|
}
|
|
|
|
run().catch(console.log)
|
|
|
|
---------
|