CATALOG_TAGS
Applies to: 
Databricks SQL Databricks Runtime 13.3 and above Unity Catalog only.
INFORMATION_SCHEMA.CATALOG_TAGS contains all the tags that have been applied to all the catalogs within the metastore.
Information is displayed only for catalogs the user has permission to interact with.
This relation is an extension to the SQL Standard Information Schema.
Definition
The CATALOG_TAGS relation contains the following.
| Name | Data type | Nullable | Description |
|---|---|---|---|
CATALOG_NAME |
STRING |
No | The catalog name that a given tag applies to. |
TAG_NAME |
STRING |
No | The name of the tag. |
TAG_VALUE |
STRING |
No | The value of the tag. |
Constraints
The following constraint applies to the CATALOG_TAGS relation:
| Class | Name | Column List | Description |
|---|---|---|---|
| Primary key | CATALOG_TAGS_PK |
CATALOG_NAME, TAG_NAME, TAG_VALUE |
Unique identifier for a catalog tag. |
| Foreign key | CATTAGS_CATS_FK |
CATALOG_NAME |
References CATALOGS |
Example
> SELECT catalog_name, tag_name, tag_value
FROM information_schema.catalog_tags;