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Use runtime fields
editUse runtime fields
editUse the runtime_mappings
parameter to extract and create runtime
fields, or columns, from existing ones during a search.
The following search creates a release_day_of_week
runtime field from
release_date
and returns it in the response.
resp = client.sql.query( format="txt", runtime_mappings={ "release_day_of_week": { "type": "keyword", "script": "\n emit(doc['release_date'].value.dayOfWeekEnum.toString())\n " } }, query="\n SELECT * FROM library WHERE page_count > 300 AND author = 'Frank Herbert'\n ", ) print(resp)
response = client.sql.query( format: 'txt', body: { runtime_mappings: { release_day_of_week: { type: 'keyword', script: "\n emit(doc['release_date'].value.dayOfWeekEnum.toString())\n " } }, query: "\n SELECT * FROM library WHERE page_count > 300 AND author = 'Frank Herbert'\n " } ) puts response
const response = await client.sql.query({ format: "txt", runtime_mappings: { release_day_of_week: { type: "keyword", script: "\n emit(doc['release_date'].value.dayOfWeekEnum.toString())\n ", }, }, query: "\n SELECT * FROM library WHERE page_count > 300 AND author = 'Frank Herbert'\n ", }); console.log(response);
POST _sql?format=txt { "runtime_mappings": { "release_day_of_week": { "type": "keyword", "script": """ emit(doc['release_date'].value.dayOfWeekEnum.toString()) """ } }, "query": """ SELECT * FROM library WHERE page_count > 300 AND author = 'Frank Herbert' """ }
The API returns:
author | name | page_count | release_date |release_day_of_week ---------------+---------------+---------------+------------------------+------------------- Frank Herbert |Dune |604 |1965-06-01T00:00:00.000Z|TUESDAY