Categories:: Information Schema , Table Functions

DATA_METRIC_FUNCTION_REFERENCES¶

Returns a row for each object that has the specified data metric function assigned to the object or returns a row for each data metric function assigned to the specified object.

See also:: DATA_METRIC_FUNCTION_REFERENCES view (Account Usage view)

Syntax¶

DATA_METRIC_FUNCTION_REFERENCES(
  METRIC_NAME => '<string>' )

DATA_METRIC_FUNCTION_REFERENCES(
  REF_ENTITY_NAME => '<string>' ,
  REF_ENTITY_DOMAIN => '<string>'
  )

Copy

Arguments¶

METRIC_NAME => 'string'

Specifies the name of the data metric function.

The entire data metric name must be enclosed in single quotes.
If the data metric name is case-sensitive or includes any special characters or spaces, double quotes are required to process the case/characters. The double quotes must be enclosed within the single quotes (i.e. '"<metric_name>"').

REF_ENTITY_NAME => 'string'

The name of the object (i.e. table_name, view_name, external_table_name, username) on which the data metric function is added.

The entire object name must be enclosed in single quotes.
If the object name is case-sensitive or includes any special characters or spaces, double quotes are required to process the case/characters. The double quotes must be enclosed within the single quotes (i.e. '"<table_name>"').

REF_ENTITY_DOMAIN => 'string'

The object type (i.e. table, view) on which the data metric function is added.

If the object is an external table, use 'table' as the argument.

Returns¶

The function returns the following columns:

Column	Data type	Description
`metric_database_name`	VARCHAR	The database that stores the data metric function.
`metric_schema_name`	VARCHAR	The schema that stores the data metric function.
`metric_name`	VARCHAR	The name of the data metric function.
`argument_signature`	VARCHAR	The type signature of the metrics arguments.
`data_type`	VARCHAR	The return data type of the data metric function.
`ref_database_name`	VARCHAR	The database name that contains the object on which the data metric function is added.
`ref_schema_name`	VARCHAR	The schema name that contains the object on which the data metric function is added.
`ref_entity_name`	VARCHAR	The name of the table or view on which the data metric function is set.
`ref_entity_domain`	VARCHAR	The object type (table, view) on which the data metric function is set.
`ref_arguments`	ARRAY	Identifies the reference arguments used to evaluate the rule.
`ref_id`	VARCHAR	A unique identifier for the association of the data metric function to the table or view.
`schedule`	VARCHAR	The schedule to run the data metric function on the table or view.
`schedule_status`	VARCHAR	The status of the metrics association. One of the following: `STARTED` The data metric association on the table or view is scheduled to run. `SUSPENDED` The data metric association on the table or view is not scheduled to run. This value also occurs when the role in use that calls the function does not have the OWNERSHIP privilege on the table. When querying the Account Usage view, the following values are visible by default; however, when calling the table function you must use a role with the OWNERSHIP privilege on the table to see these values: `SUSPENDED_TABLE_DOES_NOT_EXIST_OR_NOT_AUTHORIZED` One of the following: The table is dropped. The schema or database that contains the table is dropped The schema or database that contains the table cannot be resolved by the table owner role. “Resolved” means the role that calls the function does not have the appropriate privileges on the schema or database that contains the table. `SUSPENDED_DATA_METRIC_FUNCTION_DOES_NOT_EXIST_OR_NOT_AUTHORIZED` One of the following: The DMF is dropped. The schema or database that contains the DMF is dropped. The schema or database that contains the DMF cannot be resolved by the table owner role. `SUSPENDED_TABLE_COLUMN_DOES_NOT_EXIST_OR_NOT_AUTHORIZED` One of the following: The target table column is dropped. The schema or database that contains the column is dropped. The schema or database that contains the column cannot be resolved by the table owner role. `SUSPENDED_INSUFFICIENT_PRIVILEGE_TO_EXECUTE_DATA_METRIC_FUNCTION` The table owner role does not have the EXECUTE DATA METRIC FUNCTION privilege. `SUSPENDED_ACTIVE_EVENT_TABLE_DOES_NOT_EXIST_OR_NOT_AUTHORIZED` The event table is not set at the account level.

Results are returned based on the privileges granted to the role executing the query.

A role used to execute this SQL command must have the following privileges at a minimum:

Any supported privilege on the data metric function.
- For system DMFs, the role can be granted the DATA_METRIC_USER database role.
The SELECT privilege on the table or view.

Usage notes¶

When calling an Information Schema table function, the session must have an INFORMATION_SCHEMA schema in use or the function must use the fully-qualified object name. For more details, see Snowflake Information Schema.
Choose one syntax variation to execute a query. Mixing arguments results in errors and query failure.

The argument values for REF_ENTITY_NAME and REF_ENTITY_DOMAIN must be included together otherwise the query fails.
Snowflake returns errors if the specified object name does not exist or if the query operator is not authorized to view any data metric function on the object. Snowflake can return a result set of data metric associations if the operator is allowed to view a subset of the data metric associations.
Unsupported object types listed as the REF_ENTITY_DOMAIN, such as 'stream', return errors.

Examples¶

Return a row for each object (table or view) that has the DMF named count_positive_numbers set on that table or view:

USE DATABASE governance;
USE SCHEMA INFORMATION_SCHEMA;
SELECT *
  FROM TABLE(
    INFORMATION_SCHEMA.DATA_METRIC_FUNCTION_REFERENCES(
      METRIC_NAME => 'governance.dmfs.count_positive_numbers'
    )
  );

Copy

Return a row for each DMF assigned to the table named hr.tables.empl_info:

USE DATABASE governance;
USE SCHEMA INFORMATION_SCHEMA;
SELECT *
  FROM TABLE(
    INFORMATION_SCHEMA.DATA_METRIC_FUNCTION_REFERENCES(
      REF_ENTITY_NAME => 'hr.tables.empl_info',
      REF_ENTITY_DOMAIN => 'table'
    )
  );

Copy