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elasticsearch/docs/reference/query-languages/sql-functions-system.md
Colleen McGinnis b7e3a1e14b
[docs] Migrate docs from AsciiDoc to Markdown (#123507) 
* delete asciidoc files

* add migrated files

* fix errors

* Disable docs tests

* Clarify release notes page titles

* Revert "Clarify release notes page titles"

This reverts commit 8be688648d.

* Comment out edternal URI images

* Clean up query languages landing pages, link to conceptual docs

* Add .md to url

* Fixes inference processor nesting.

---------

Co-authored-by: Liam Thompson <32779855+leemthompo@users.noreply.github.com>
Co-authored-by: Liam Thompson <leemthompo@gmail.com>
Co-authored-by: Martijn Laarman <Mpdreamz@gmail.com>
Co-authored-by: István Zoltán Szabó <szabosteve@gmail.com>
2025-02-27 17:56:14 +01:00

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https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-functions-system.html

System Functions [sql-functions-system]

These functions return metadata type of information about the system being queried.

DATABASE [sql-functions-system-database]

DATABASE()

Input: none

Output: string

Description: Returns the name of the database being queried. In the case of Elasticsearch SQL, this is the name of the Elasticsearch cluster. This function should always return a non-null value.

SELECT DATABASE();

   DATABASE
---------------
elasticsearch

USER [sql-functions-system-user]

USER()

Input: none

Output: string

Description: Returns the username of the authenticated user executing the query. This function can return null in case security is disabled.

SELECT USER();

     USER
---------------
elastic