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ClickHouse/docs/en/table_functions/file.md
Ivan Blinkov e312229344 Few documentation infrastructure improvements (#2613) 
* Remove Berlin meetup link

* Do not block browser while single page docs content loads

* Restore sidebar scroll tracking feature

* Temporary hide footer in single page docs mode so it does not jump around

* Swap sidebars in single page docs mode

* fix lost anchor in link

* Explicitly fail if there are errors during docs build
2018-07-09 15:00:38 +03:00

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file

file(path, format, structure) - returns a table created from a path file with a format type, with columns specified in structure.

path - a relative path to a file from user_files_path.

format - file format.

structure - table structure in 'UserID UInt64, URL String' format. Determines column names and types.

Example

-- 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