3e5e568c07
* delete asciidoc files * add migrated files * Apply suggestions from review Co-authored-by: Josh Mock <josh@joshmock.com> * Apply suggestions from review Co-authored-by: Josh Mock <josh@joshmock.com> * add the new ci checks (#2634) --------- Co-authored-by: Marci W <333176+marciw@users.noreply.github.com> Co-authored-by: Josh Mock <josh@joshmock.com>
62 lines
1.3 KiB
Markdown
62 lines
1.3 KiB
Markdown
---
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mapped_pages:
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- https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/update_by_query_examples.html
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---
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# Update By Query [update_by_query_examples]
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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.
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```js
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'use strict'
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const { Client } = require('@elastic/elasticsearch')
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const client = new Client({
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cloud: { id: '<cloud-id>' },
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auth: { apiKey: 'base64EncodedKey' }
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})
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async function run () {
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await client.index({
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index: 'game-of-thrones',
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document: {
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character: 'Ned Stark',
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quote: 'Winter is coming.'
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}
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})
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await client.index({
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index: 'game-of-thrones',
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refresh: true,
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document: {
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character: 'Arya Stark',
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quote: 'A girl is Arya Stark of Winterfell. And I\'m going home.'
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}
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})
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await client.updateByQuery({
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index: 'game-of-thrones',
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refresh: true,
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script: {
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lang: 'painless',
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source: 'ctx._source["house"] = "stark"'
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},
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query: {
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match: {
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character: 'stark'
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}
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}
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})
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const result = await client.search({
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index: 'game-of-thrones',
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query: { match_all: {} }
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})
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console.log(result.hits.hits)
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}
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run().catch(console.log)
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```
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