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* Add documentation of settings Задокументировал две настройки. * Fix links Поправил ссылки. * Update docs/en/operations/settings/settings.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/en/operations/settings/settings.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/en/operations/settings/settings.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/en/operations/settings/settings.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/en/sql-reference/statements/alter/index.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/en/sql-reference/statements/alter/index.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/en/sql-reference/statements/optimize.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/en/sql-reference/statements/truncate.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/en/sql-reference/statements/truncate.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Translate to Russian Выполнил перевод на русский язык. * Fix links Поправил ссылки. * Update settings.md Поправил перевод. * Update docs/en/operations/settings/settings.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/en/sql-reference/statements/alter/index.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/en/sql-reference/statements/optimize.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/en/sql-reference/statements/truncate.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/ru/operations/settings/settings.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/ru/operations/settings/settings.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Update docs/en/operations/settings/settings.md Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com> * Fix errors Исправил неточности в описании. * Update optimize.md Поправил описание запроса OPTIMIZE. Co-authored-by: Dmitriy <sevirov@yandex-team.ru> Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com>
22 lines
1.3 KiB
Markdown
22 lines
1.3 KiB
Markdown
---
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toc_priority: 52
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toc_title: TRUNCATE
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---
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# TRUNCATE Statement {#truncate-statement}
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``` sql
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TRUNCATE TABLE [IF EXISTS] [db.]name [ON CLUSTER cluster]
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```
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Removes all data from a table. When the clause `IF EXISTS` is omitted, the query returns an error if the table does not exist.
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The `TRUNCATE` query is not supported for [View](../../engines/table-engines/special/view.md), [File](../../engines/table-engines/special/file.md), [URL](../../engines/table-engines/special/url.md), [Buffer](../../engines/table-engines/special/buffer.md) and [Null](../../engines/table-engines/special/null.md) table engines.
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You can use the [replication_alter_partitions_sync](../../operations/settings/settings.md#replication-alter-partitions-sync) setting to set up waiting for actions to be executed on replicas.
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You can specify how long (in seconds) to wait for inactive replicas to execute `TRUNCATE` queries with the [replication_wait_for_inactive_replica_timeout](../../operations/settings/settings.md#replication-wait-for-inactive-replica-timeout) setting.
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!!! info "Note"
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If the `replication_alter_partitions_sync` is set to `2` and some replicas are not active for more than the time, specified by the `replication_wait_for_inactive_replica_timeout` setting, then an exception `UNFINISHED` is thrown.
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