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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>
50 lines
1.6 KiB
Markdown
50 lines
1.6 KiB
Markdown
---
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mapped_pages:
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- https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-syntax-show-columns.html
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---
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# SHOW COLUMNS [sql-syntax-show-columns]
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```sql
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SHOW COLUMNS
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[CATALOG identifier]? <1>
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[INCLUDE FROZEN]? <2>
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[FROM | IN]
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[table_identifier | <3>
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LIKE pattern] <4>
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```
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1. Catalog (cluster) identifier. Supports wildcards (`*`).
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2. Whether or not to include frozen indices.
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3. Single table (index or data stream) identifier or double-quoted multi-target pattern.
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4. SQL LIKE pattern matching table names.
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See [index patterns](/reference/query-languages/sql-index-patterns.md) for more information about patterns.
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**Description**: List the columns in table and their data type (and other attributes).
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```sql
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SHOW COLUMNS IN emp;
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column | type | mapping
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--------------------+---------------+---------------
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birth_date |TIMESTAMP |datetime
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dep |STRUCT |nested
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dep.dep_id |VARCHAR |keyword
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dep.dep_name |VARCHAR |text
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dep.dep_name.keyword|VARCHAR |keyword
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dep.from_date |TIMESTAMP |datetime
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dep.to_date |TIMESTAMP |datetime
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emp_no |INTEGER |integer
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first_name |VARCHAR |text
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first_name.keyword |VARCHAR |keyword
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gender |VARCHAR |keyword
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hire_date |TIMESTAMP |datetime
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languages |TINYINT |byte
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last_name |VARCHAR |text
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last_name.keyword |VARCHAR |keyword
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name |VARCHAR |keyword
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salary |INTEGER |integer
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```
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