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Merge branch 'nikvas0/index_mutate' of github.com:nikvas0/ClickHouse into nikvas0/index_mutate

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Nikita Vasilev 2019-08-15 20:48:24 +03:00
commit d67c0f5aa0
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6
docs/en/query_language/alter.md
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@ -175,7 +175,7 @@ The following operations with [partitions](../operations/table_engines/custom_pa
- [ATTACH PART|PARTITION](#alter_attach-partition) – Adds a part or partition from the `detached` directory to the table.
- [REPLACE PARTITION](#alter_replace-partition) - Copies the data partition from one table to another.
- [CLEAR COLUMN IN PARTITION](#alter_clear-column-partition) - Resets the value of a specified column in a partition.
- [CLEAR INDEX IN PARTITION](#alter_clear-index-partition) - Resets the secondary index in a partition.
- [CLEAR INDEX IN PARTITION](#alter_clear-index-partition) - Resets the specified secondary index in a partition.
- [FREEZE PARTITION](#alter_freeze-partition) – Creates a backup of a partition.
- [FETCH PARTITION](#alter_fetch-partition) – Downloads a partition from another server.
@ -299,7 +299,7 @@ For more information about backups and restoring data, see the [Data Backup](../
ALTER TABLE table_name CLEAR INDEX index_name IN PARTITION partition_expr
```
The query works similar to `CLEAR COLUMN`, but it resets an index instead of a column.
The query works similar to `CLEAR COLUMN`, but it resets an index instead of a column data.
#### FETCH PARTITION {#alter_fetch-partition}
@ -383,7 +383,7 @@ The command is available starting with the 18.12.14 version. The `filter_expr` m
ALTER TABLE [db.]table MATERIALIZE INDEX name IN PARTITION partition_name
```
The query recalculates the secondary index `name` in the partition `partition_name`.
The query rebuilds the secondary index `name` in the partition `partition_name`.
One query can contain several commands separated by commas.

6
docs/ru/query_language/alter.md
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@ -174,7 +174,7 @@ ALTER TABLE [db].name DROP INDEX name
- [ATTACH PARTITION|PART](#alter_attach-partition) – добавить партицию/кусок в таблицу из директории `detached`;
- [REPLACE PARTITION](#alter_replace-partition) – скопировать партицию из другой таблицы;
- [CLEAR COLUMN IN PARTITION](#alter_clear-column-partition) – удалить все значения в столбце для заданной партиции;
- [CLEAR INDEX IN PARTITION](#alter_clear-index-partition) - очистить посчитанные вторичные индексы для заданной партиции;
- [CLEAR INDEX IN PARTITION](#alter_clear-index-partition) - очистить построенные вторичные индексы для заданной партиции;
- [FREEZE PARTITION](#alter_freeze-partition) – создать резервную копию партиции;
- [FETCH PARTITION](#alter_fetch-partition) – скачать партицию с другого сервера.
@ -264,7 +264,7 @@ ALTER TABLE visits CLEAR COLUMN hour in PARTITION 201902
ALTER TABLE table_name CLEAR INDEX index_name IN PARTITION partition_expr
```
Работает как `CLEAR COLUMN`, но сбрасывает индексы вместо столбцов.
Работает как `CLEAR COLUMN`, но сбрасывает индексы вместо данных в столбцах.
#### FREEZE PARTITION {#alter_freeze-partition}
@ -384,7 +384,7 @@ ALTER TABLE [db.]table UPDATE column1 = expr1 [, ...] WHERE filter_expr
ALTER TABLE [db.]table MATERIALIZE INDEX name IN PARTITION partition_name
```
Команда пересчитает вторичный индекс `name` для партиции `partition_name`.
Команда перестроит вторичный индекс `name` для партиции `partition_name`.
В одном запросе можно указать несколько команд через запятую.