mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-01 03:52:15 +00:00
7d206cbc3c
Add syntax in SQL and XML to mark specific fields to allow override or not. Also add a new setting to control the default behaviour when overriding support is not specified.
35 lines
804 B
Markdown
35 lines
804 B
Markdown
---
|
|
slug: /en/sql-reference/statements/create/named-collection
|
|
sidebar_label: NAMED COLLECTION
|
|
---
|
|
|
|
# CREATE NAMED COLLECTION
|
|
|
|
Creates a new named collection.
|
|
|
|
**Syntax**
|
|
|
|
```sql
|
|
CREATE NAMED COLLECTION [IF NOT EXISTS] name [ON CLUSTER cluster] AS
|
|
key_name1 = 'some value' [[NOT] OVERRIDABLE],
|
|
key_name2 = 'some value' [[NOT] OVERRIDABLE],
|
|
key_name3 = 'some value' [[NOT] OVERRIDABLE],
|
|
...
|
|
```
|
|
|
|
**Example**
|
|
|
|
```sql
|
|
CREATE NAMED COLLECTION foobar AS a = '1', b = '2' OVERRIDABLE;
|
|
```
|
|
|
|
**Related statements**
|
|
|
|
- [CREATE NAMED COLLECTION](https://clickhouse.com/docs/en/sql-reference/statements/alter/named-collection)
|
|
- [DROP NAMED COLLECTION](https://clickhouse.com/docs/en/sql-reference/statements/drop#drop-function)
|
|
|
|
|
|
**See Also**
|
|
|
|
- [Named collections guide](/docs/en/operations/named-collections.md)
|