@@ -111,19 +111,30 @@ It is not possible to set default values for elements in nested data structures.
You can define a [primary key](../../../engines/table-engines/mergetree-family/mergetree.md#primary-keys-and-indexes-in-queries) when creating a table. Primary key can be specified in two ways:
@@ -85,19 +85,30 @@ CREATE TABLE [IF NOT EXISTS] [db.]table_name ENGINE = engine AS SELECT ...
Вы можете определить [первичный ключ](../../../engines/table-engines/mergetree-family/mergetree.md#primary-keys-and-indexes-in-queries) при создании таблицы. Первичный ключ может быть указан двумя способами: