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* 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
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numbers
numbers(N) - возвращает таблицу с единственным столбцом number (тип UInt64), содержащим натуральные числа от 0 до N-1.
Так же как и таблица system.numbers может использоваться для тестов и генерации последовательных значений.
Следующие 2 запроса эквивалентны:
SELECT * FROM numbers(10);
SELECT * FROM system.numbers LIMIT 10;
Примеры:
-- генерация последовательности всех дат от 2010-01-01 до 2010-12-31
select toDate('2010-01-01') + number as d FROM numbers(365);