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ClickHouse/docs/en/query_language/table_functions/file.md

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file() function's description (#2361) * Create file.md * Update file.md * Update file.md * Update settings.md * Update file.md * Update settings.md * Update file.md * Update file.md * Update settings.md * Update file.md * Update settings.md * Update file.md * Update settings.md * Update settings.md * Update file.md * Update file.md * Update file.md * Update file.md * Update file.md * Update file.md * Update settings.md * Update file.md * Update settings.md * Update settings.md * Update settings.md * Create file.md * Update mkdocs_ru.yml * Update mkdocs_en.yml * Update settings.md * Update settings.md * Update mkdocs_en.yml * Update mkdocs_ru.yml * Update mkdocs_en.yml * Update mkdocs_en.yml * Update file.md * Update file.md
2018-05-14 19:58:49 +00:00
<a name="table_functions-file"></a>
# file
`file(path, format, structure)` - returns a table created from a path file with a format type, with columns specified in structure.
Some WIP on documentation refactoring (#2659) * Additional .gitignore entries * Merge a bunch of small articles about system tables into single one * Merge a bunch of small articles about formats into single one * Adapt table with formats to English docs too * Add SPb meetup link to main page * Move Utilities out of top level of docs (the location is probably not yet final) + translate couple articles * Merge MacOS.md into build_osx.md * Move Data types higher in ToC * Publish changelog on website alongside documentation * Few fixes for en/table_engines/file.md * Use smaller header sizes in changelogs * Group up table engines inside ToC * Move table engines out of top level too * Specificy in ToC that query language is SQL based. Thats a bit excessive, but catches eye. * Move stuff that is part of query language into respective folder * Move table functions lower in ToC * Lost redirects.txt update * Do not rely on comments in yaml + fix few ru titles * Extract major parts of queries.md into separate articles * queries.md has been supposed to be removed * Fix weird translation * Fix a bunch of links * There is only table of contents left * "Query language" is actually part of SQL abbreviation * Change filename in README.md too * fix mistype
2018-07-18 10:00:53 +00:00
path - a relative path to a file from [user_files_path](../../operations/server_settings/settings.md#user_files_path).
file() function's description (#2361) * Create file.md * Update file.md * Update file.md * Update settings.md * Update file.md * Update settings.md * Update file.md * Update file.md * Update settings.md * Update file.md * Update settings.md * Update file.md * Update settings.md * Update settings.md * Update file.md * Update file.md * Update file.md * Update file.md * Update file.md * Update file.md * Update settings.md * Update file.md * Update settings.md * Update settings.md * Update settings.md * Create file.md * Update mkdocs_ru.yml * Update mkdocs_en.yml * Update settings.md * Update settings.md * Update mkdocs_en.yml * Update mkdocs_ru.yml * Update mkdocs_en.yml * Update mkdocs_en.yml * Update file.md * Update file.md
2018-05-14 19:58:49 +00:00
Some WIP on documentation refactoring (#2659) * Additional .gitignore entries * Merge a bunch of small articles about system tables into single one * Merge a bunch of small articles about formats into single one * Adapt table with formats to English docs too * Add SPb meetup link to main page * Move Utilities out of top level of docs (the location is probably not yet final) + translate couple articles * Merge MacOS.md into build_osx.md * Move Data types higher in ToC * Publish changelog on website alongside documentation * Few fixes for en/table_engines/file.md * Use smaller header sizes in changelogs * Group up table engines inside ToC * Move table engines out of top level too * Specificy in ToC that query language is SQL based. Thats a bit excessive, but catches eye. * Move stuff that is part of query language into respective folder * Move table functions lower in ToC * Lost redirects.txt update * Do not rely on comments in yaml + fix few ru titles * Extract major parts of queries.md into separate articles * queries.md has been supposed to be removed * Fix weird translation * Fix a bunch of links * There is only table of contents left * "Query language" is actually part of SQL abbreviation * Change filename in README.md too * fix mistype
2018-07-18 10:00:53 +00:00
format - file [format](../../interfaces/formats.md#formats).
file() function's description (#2361) * Create file.md * Update file.md * Update file.md * Update settings.md * Update file.md * Update settings.md * Update file.md * Update file.md * Update settings.md * Update file.md * Update settings.md * Update file.md * Update settings.md * Update settings.md * Update file.md * Update file.md * Update file.md * Update file.md * Update file.md * Update file.md * Update settings.md * Update file.md * Update settings.md * Update settings.md * Update settings.md * Create file.md * Update mkdocs_ru.yml * Update mkdocs_en.yml * Update settings.md * Update settings.md * Update mkdocs_en.yml * Update mkdocs_ru.yml * Update mkdocs_en.yml * Update mkdocs_en.yml * Update file.md * Update file.md
2018-05-14 19:58:49 +00:00
structure - table structure in 'UserID UInt64, URL String' format. Determines column names and types.
**Example**
```sql
-- getting the first 10 lines of a table that contains 3 columns of UInt32 type from a CSV file
SELECT * FROM file('test.csv', 'CSV', 'column1 UInt32, column2 UInt32, column3 UInt32') LIMIT 10
```
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