ALTER NAMED COLLECTION

Documentation for ALTER NAMED COLLECTION

This query intends to modify already existing named collections.

DDL-created named collections can be enabled on select ClickHouse Cloud services. Contact Support to confirm availability.

Syntax

ALTER NAMED COLLECTION [IF EXISTS] name [ON CLUSTER cluster]
[ SET
key_name1 = 'some value' [[NOT] OVERRIDABLE],
key_name2 = 'some value' [[NOT] OVERRIDABLE],
key_name3 = 'some value' [[NOT] OVERRIDABLE],
... ] |
[ DELETE key_name4, key_name5, ... ]

Example

CREATE NAMED COLLECTION foobar AS a = '1' NOT OVERRIDABLE, b = '2';

ALTER NAMED COLLECTION foobar SET a = '2' OVERRIDABLE, c = '3';

ALTER NAMED COLLECTION foobar DELETE b;

Part of: ALTER

Related: CREATE NAMED COLLECTION, ALTER, DROP