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* [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 commit8be688648d. * 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> (cherry picked from commitb7e3a1e14b) # Conflicts: # docs/build.gradle # docs/reference/migration/index.asciidoc # docs/reference/migration/migrate_9_0.asciidoc # docs/reference/release-notes.asciidoc # docs/reference/release-notes/9.0.0.asciidoc # docs/reference/release-notes/highlights.asciidoc * Fix build file * Really fix build file --------- Co-authored-by: Colleen McGinnis <colleen.j.mcginnis@gmail.com>
51 lines
1,017 B
Markdown
51 lines
1,017 B
Markdown
---
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mapped_pages:
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- https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-functions-system.html
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---
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# System Functions [sql-functions-system]
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These functions return metadata type of information about the system being queried.
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## `DATABASE` [sql-functions-system-database]
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```sql
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DATABASE()
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```
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**Input**: *none*
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**Output**: string
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**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.
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```sql
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SELECT DATABASE();
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DATABASE
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---------------
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elasticsearch
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```
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## `USER` [sql-functions-system-user]
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```sql
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USER()
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```
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**Input**: *none*
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**Output**: string
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**Description**: Returns the username of the authenticated user executing the query. This function can return `null` in case [security](docs-content://deploy-manage/deploy/self-managed/installing-elasticsearch.md) is disabled.
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```sql
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SELECT USER();
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USER
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---------------
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elastic
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```
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