elasticsearch/docs/reference/query-languages/esql/_snippets/functions/qstr.md

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QSTR [esql-qstr]

::::{warning} Do not use on production environments. This functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features. ::::

Syntax

:::{image} ../../../../../images/qstr.svg :alt: Embedded :class: text-center :::

Parameters

query
Query string in Lucene query string format.

Description

Performs a query string query. Returns true if the provided query string matches the row.

Supported types

query result
keyword boolean
text boolean

Example

FROM books
| WHERE QSTR("author: Faulkner")
| KEEP book_no, author
| SORT book_no
| LIMIT 5
book_no:keyword author:text
2378 [Carol Faulkner, Holly Byers Ochoa, Lucretia Mott]
2713 William Faulkner
2847 Colleen Faulkner
2883 William Faulkner
3293 Danny Faulkner