Monitoring storage lifecycle policies¶

Identify which tables have storage lifecycle policies attached, and monitor storage lifecycle policy runs by using Snowflake’s built-in functions.

Note

For information about monitoring storage lifecycle policy costs, see Billing for storage lifecycle policies.

Monitoring policy assignments¶

To view storage lifecycle policy metadata, use the following views:

See lifecycle policy attachments¶

To see which tables a particular lifecycle policy is attached to, you can call the POLICY_REFERENCES table function in the Snowflake Information Schema. The function displays only the tables that you have the OWNERSHIP privilege on.

The function returns a row for each table in a database that has the specified policy attached to it.

Example: List all tables associated with a policy¶

The following query retrieves a list of tables with a specified storage lifecycle policy attached.

SELECT *
  FROM TABLE(
    my_db.INFORMATION_SCHEMA.POLICY_REFERENCES(
    POLICY_NAME => 'my_storage_lifecycle_policy'
  )
);

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Example: Find the policy assigned to a table¶

Retrieve the policy assigned to a specified table:

SELECT *
  FROM TABLE(
    my_db.INFORMATION_SCHEMA.POLICY_REFERENCES(
      REF_ENTITY_NAME => 'my_db.my_schema.my_table',
      REF_ENTITY_DOMAIN => 'table'))
  WHERE POLICY_KIND = 'STORAGE_LIFECYCLE_POLICY';

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Monitor storage lifecycle policy runs¶

Use the STORAGE_LIFECYCLE_POLICY_HISTORY table function to monitor storage lifecycle policy executions over the last 14 days. For information about the function output, see the STORAGE_LIFECYCLE_POLICY_HISTORY page.

The following example retrieves the 100 most recent executions for a policy attached to a specified table, scheduled within the last day:

SELECT * FROM
  TABLE(
    INFORMATION_SCHEMA.STORAGE_LIFECYCLE_POLICY_HISTORY(
      REF_ENTITY_NAME => 'my_db.my_schema.my_source_table',
      REF_ENTITY_DOMAIN => 'table',
      TIME_RANGE_START => DATEADD('DAY', -1, CURRENT_TIMESTAMP()),
      RESULT_LIMIT => 100
    )
  );

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Alternatively, use the following views to retrieve historical data for storage lifecycle policy runs: