Categories:: Information Schema , Table functions

TAG_REFERENCES¶

Returns a table in which each row displays an association between a tag and value.

The associated tag and value are the result of a direct association to an object or through tag inheritance.

Syntax¶

TAG_REFERENCES( '<object_name>' , '<object_domain>' )

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Arguments¶

'object_name'

Name of the referenced object if the tag association is on the object.

'object_domain'

Domain of the reference object, such as a table or view, if the tag association is on the object. For columns, the domain is COLUMN if the tag association is on a column.

Use one of the following values:

'ACCOUNT'

'ALERT'

'COLUMN'

'COMPUTE POOL'

'DATABASE'

'DATABASE ROLE'

'FAILOVER GROUP'

'FUNCTION'

'INTEGRATION'

'INSTANCE'

'NETWORK POLICY'

'PROCEDURE'

'REPLICATION GROUP'

'ROLE'

'SCHEMA'

'SHARE'

'STAGE'

'STREAM'

'TABLE': Use this for all table-like objects such as views, materialized views, and external tables.

'TASK'

'USER'

'WAREHOUSE'

Usage notes¶

Results are only returned for a role that has access to the specified object.

To view references for system tags, use a role with IMPORTED PRIVILEGES on the shared SNOWFLAKE database.
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.

Output¶

The function returns the following columns:

Column	Data Type	Description
TAG_DATABASE	TEXT	The database in which the tag is set.
TAG_SCHEMA	TEXT	The schema in which the tag is set.
TAG_NAME	TEXT	The name of the tag. This is the `key` in the `key = 'value'` pair of the tag.
TAG_VALUE	TEXT	The value of the tag. This is the `'value'` in the `key = 'value'` pair of the tag.
APPLY_METHOD	TEXT	Specifies how the tag got assigned to the object. Possible values include the following: `CLASSIFIED`: The tag was automatically applied to a column that was classified as containing sensitive data. See About tag mapping. `INHERITED`: The object inherited the tag from an object higher up in the Snowflake securable object hierarchy. See Tag inheritance. `MANUAL`: Someone manually set the tag on the object using a CREATE <object> or ALTER <object> command. See Set a tag. `PROPAGATED`: The tag was automatically propagated from one object to another. See Automatic tag propagation with user-defined tags. `NULL`: Legacy record. `NONE`: Legacy record.
LEVEL	TEXT	The object domain on which the tag is set.
OBJECT_DATABASE	TEXT	Database name of the referenced object for database and schema objects. If the object is not a database or schema object, the value is empty.
OBJECT_SCHEMA	TEXT	Schema name of the referenced object (for schema objects). If the referenced object is not a schema object (e.g. warehouse), this value is empty.
OBJECT_NAME	TEXT	Name of the reference object if the tag association is on the object.
DOMAIN	TEXT	Domain of the reference object (e.g. table, view) if the tag association is on the object. If the tag association is on a column, the domain is COLUMN.
COLUMN_NAME	TEXT	Name of the referenced column; not applicable if the tag association is not a column.

Examples¶

Retrieve the list of tags associated with the table my_table:

select *
  from table(my_db.information_schema.tag_references('my_table', 'table'));

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Retrieve the list of tags associated on the column result:

select *
  from table(my_db.information_schema.tag_references('my_table.result', 'COLUMN'));

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