IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Update By Query
editUpdate By Query
editThe 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.
'use strict' const { Client } = require('@elastic/elasticsearch') const client = new Client({ cloud: { id: '<cloud-id>' }, auth: { apiKey: 'base64EncodedKey' } }) async function run () { await client.index({ index: 'game-of-thrones', document: { character: 'Ned Stark', quote: 'Winter is coming.' } }) await client.index({ index: 'game-of-thrones', refresh: true, document: { 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, script: { lang: 'painless', source: 'ctx._source["house"] = "stark"' }, query: { match: { character: 'stark' } } }) const result = await client.search({ index: 'game-of-thrones', query: { match_all: {} } }) console.log(result.hits.hits) } run().catch(console.log)