Contact UsGet started
© 2025 Direct Cursus Technology L.L.C.

yc managed-clickhouse cluster update-external-dictionary

Written by
Updated at June 20, 2025

Update an external dictionary in a ClickHouse cluster.

Command Usage

Syntax:

yc managed-clickhouse cluster update-external-dictionary <CLUSTER-NAME>|<CLUSTER-ID> [Flags...] [Global Flags...]

Flags

Flag Description
--id string
ID of the ClickHouse cluster.
--name string
Name of the ClickHouse cluster.
--async Display information about the operation in progress, without waiting for the operation to complete.
--dict-name string
Name to set for the external dictionary.
--structure-id string
Numeric key of the column for the dictionary.
--structure-key PROPERTY=VALUE[,PROPERTY=VALUE...]
Specifies composite keys for the dictionary.

Possible property names:
  • name: Name of the column.
  • type: Type of the data in the column.
  • null-value: Default value for an element without data (for example, an empty string).
  • expression: Expression that describes the attribute, if applicable.
  • hierarchical: Indication of hierarchy support.
  • injective: Indication of injective mapping 'id' -> 'attribute'.
--structure-attribute PROPERTY=VALUE[,PROPERTY=VALUE...]
Description of the fields available for database queries.

Possible property names:
  • name: Name of the column.
  • type: Type of the data in the column.
  • null-value: Default value for an element without data (for example, an empty string).
  • expression: Expression that describes the attribute, if applicable.
  • hierarchical: Indication of hierarchy support.
  • injective: Indication of injective mapping 'id' -> 'attribute'.
--fixed-lifetime int
Fixed time between dictionary updates.
--lifetime-range PROPERTY=VALUE[,PROPERTY=VALUE...]
Range of possible time intervals between dictionary updates.

Possible property names:
  • min: Minimum time interval between dictionary updates.
  • max: Maximum time interval between dictionary updates.
--layout-type string
Layout type for the external dictionary.
--layout-size-in-cells int
Number of cells in the cache. Rounded up to a power of two. Applicable only for cache and complex_key_cache layout types.
--layout-allow-read-expired-keys Allows to read expired keys. Applicable only for cache and complex_key_cache layout types.
--layout-max-update-queue-size int
Max size of update queue. Applicable only for cache and complex_key_cache layout types.
--layout-update-queue-push-timeout-milliseconds int
Max timeout in milliseconds for push update task into queue. Applicable only for cache and complex_key_cache layout types.
--layout-query-wait-timeout-milliseconds int
Max wait timeout in milliseconds for update task to complete. Applicable only for cache and complex_key_cache layout types.
--layout-max-threads-for-updates int
Max threads for cache dictionary update. Applicable only for cache and complex_key_cache layout types.
--layout-initial-array-size int
Initial dictionary key size. Applicable only for flat layout type.
--layout-max-array-size int
Maximum dictionary key size. Applicable only for flat layout type.
--layout-access-to-key-from-attributes Allows to retrieve key attribute using dictGetString function. Applicable only for ip_trie layout type.
--http-source-url string
URL of the source for the external HTTP dictionary.
--http-source-format string
Data format for the external HTTP dictionary.
--http-source PROPERTY=VALUE[,PROPERTY=VALUE...]
Description of the source for the external HTTP dictionary.

Possible property names:
  • url: URL of the source for the external HTTP dictionary.
  • format: Data format for the external HTTP dictionary.
--http-header PROPERTY=VALUE[,PROPERTY=VALUE...]
Single HTTP header entry.

Possible property names:
  • name: Identifier name used for the header send on the request. (required)
  • value: Value set for a specific identifier name. (required)
--mongodb-source PROPERTY=VALUE[,PROPERTY=VALUE...]
Description of the MongoDB source for the external dictionary.

Possible property names:
  • db: Name of the MongoDB database to use for the dictionary.
  • connection: Name of the collection in the specified database to be used as the dictionary source.
  • host: MongoDB host for the specified database
  • port: Port to use for connecting to the host.
  • user: Name of the MongoDB database user.
  • password: Password of the MongoDB database user.
  • options: MongoDB dictionary options
--clickhouse-source PROPERTY=VALUE[,PROPERTY=VALUE...]
Description of the ClickHouse source for the external dictionary.

Possible property names:
  • db: Name of the ClickHouse database to use for the dictionary.
  • table: Name of the table in the specified database.
  • host: ClickHouse host for the specified database.
  • port: Port to use for connecting to the host.
  • user: Name of the ClickHouse database user.
  • password: Password of the ClickHouse database user.
  • where: Selection criteria for the data in the specified ClickHouse table.
  • secure: Use ssl for connection.
--mysql-source PROPERTY=VALUE[,PROPERTY=VALUE...]
Description of the MySQL source for the external dictionary

Possible property names:
  • db: Name of the MySQL database to use for the dictionary.
  • table: Name of the table in the specified database to be used as the dictionary source.
  • port: Default port to use for connecting to a replica of the dictionary source.
  • user: Name of the default user for replicas of the dictionary source.
  • password: Password for the default user for all replicas of the dictionary source.
  • where: Selection criteria for the data in the specified MySQL table.
  • close-connection: Should the connection be closed after each request.
  • share-connection: Should a connection be shared for some requests.
--mysql-replica PROPERTY=VALUE[,PROPERTY=VALUE...]
MySQL replica of the database to be used as the dictionary source.

Possible property names:
  • host: MySQL host for the specified replica.
  • priority: The priority of the replica that ClickHouse should take into account when connecting to the dictionary source.
  • port: Port to use for connecting to the replica.
  • user: Name of the MySQL database user.
  • password: Password of the MySQL database user.
--mysql-invalidate-query string
Query for checking the dictionary status, to pull only updated data.
--postgresql-source PROPERTY=VALUE[,PROPERTY=VALUE...]
Description of the PostgreSQL source for the external dictionary

Possible property names:
  • db: Name of the Postgresql database to use for the dictionary.
  • table: Name of the table in the specified database to be used as the dictionary source.
  • port: Default port to use for connecting to a replica of the dictionary source.
  • user: Name of the default user for replicas of the dictionary source.
  • password: Password for the default user for all replicas of the dictionary source.
  • ssl-mode: SSL mode. Values: 'disable', 'allow', 'prefer', 'verify-ca', 'verify-full'
--postgresql-source-hosts value[,value]
Replica hosts names.
--postgresql-invalidate-query string
Query for checking the dictionary status, to pull only updated data.

Global Flags

Flag Description
--profile string
Set the custom configuration file.
--debug Debug logging.
--debug-grpc Debug gRPC logging. Very verbose, used for debugging connection problems.
--no-user-output Disable printing user intended output to stderr.
--retry int
Enable gRPC retries. By default, retries are enabled with maximum 5 attempts.
Pass 0 to disable retries. Pass any negative value for infinite retries.
Even infinite retries are capped with 2 minutes timeout.
--cloud-id string
Set the ID of the cloud to use.
--folder-id string
Set the ID of the folder to use.
--folder-name string
Set the name of the folder to use (will be resolved to id).
--endpoint string
Set the Cloud API endpoint (host:port).
--token string
Set the OAuth token to use.
--impersonate-service-account-id string
Set the ID of the service account to impersonate.
--no-browser Disable opening browser for authentication.
--format string
Set the output format: text (default), yaml, json, json-rest.
--jq string
Query to select values from the response using jq syntax
-h,--help Display help for the command.

Examples

Previous
update-extension
Next
Overview