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Fix broken links
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@ -152,7 +152,7 @@ expr AS alias
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For example, `SELECT table_name_alias.column_name FROM table_name table_name_alias`.
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In the [CAST](sql_reference/functions/type_conversion_functions.md#type_conversion_function-cast) function, the `AS` keyword has another meaning. See the description of the function.
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In the [CAST](./functions/type-conversion-functions.md#type_conversion_function-cast) function, the `AS` keyword has another meaning. See the description of the function.
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- `expr` — Any expression supported by ClickHouse.
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@ -103,7 +103,7 @@ $ sudo -u clickhouse /usr/bin/clickhouse-server --config-file /etc/clickhouse-se
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- Параметры endpoint.
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Проверьте настройки [listen_host](server_configuration_parameters/settings.md#server_configuration_parameters-listen_host) и [tcp_port](server_configuration_parameters/settings.md#server_configuration_parameters-tcp_port).
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Проверьте настройки [listen_host](./server-configuration-parameters//settings.md#server_configuration_parameters-listen_host) и [tcp_port](./server-configuration-parameters/settings.md#server_configuration_parameters-tcp_port).
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По умолчанию, сервер ClickHouse принимает только локальные подключения.
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@ -150,7 +150,7 @@ expr AS alias
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Например, `SELECT table_name_alias.column_name FROM table_name table_name_alias`.
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В функции [CAST](../sql_reference/syntax.md#type_conversion_function-cast), ключевое слово `AS` имеет другое значение. Смотрите описание функции.
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В функции [CAST](../sql-reference/syntax.md#type_conversion_function-cast), ключевое слово `AS` имеет другое значение. Смотрите описание функции.
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- `expr` — любое выражение, которое поддерживает ClickHouse.
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@ -32,7 +32,7 @@ sidebar_label: ALTER
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- [ROW POLICY](../../../sql-reference/statements/alter/row-policy.md)
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- [SETTINGS PROFILE](../../../sql-reference/statements/alter/settings-profile.md)
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[ALTER TABLE ... MODIFY COMMENT](../../../sql-reference/statements/alter/comment.md) 语句添加、修改或删除表中的注释,无论之前是否设置过。
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[ALTER TABLE ... MODIFY COMMENT](../alter/index.md) 语句添加、修改或删除表中的注释,无论之前是否设置过。
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## Mutations 突变 {#mutations}
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@ -12,12 +12,13 @@ sidebar_label: INDEX
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- `ALTER TABLE [db].name DROP INDEX name` - 从表元数据中删除索引描述并从磁盘中删除索引文件。
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- `ALTER TABLE [db.]table MATERIALIZE INDEX name IN PARTITION partition_name` - 查询在分区`partition_name`中重建二级索引`name`。 操作为[mutation](../../../../sql-reference/statements/alter/index.md#mutations).
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- `ALTER TABLE [db.]table MATERIALIZE INDEX name IN PARTITION partition_name` - 查询在分区`partition_name`中重建二级索引`name`。 操作为[mutation](../index.md#mutations).
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前两个命令是轻量级的,它们只更改元数据或删除文件。
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Also, they are replicated, syncing indices metadata via ZooKeeper.
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此外,它们会被复制,会通过ZooKeeper同步索引元数据。
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!!! note "注意"
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:::note "注意"
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索引操作仅支持具有以下特征的表 [`*MergeTree`](../../../../engines/table-engines/mergetree-family/mergetree.md)引擎 (包括[replicated](../../../../engines/table-engines/mergetree-family/replication.md)).
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:::
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