information_schema.domains.collation_catalog

Note:

Name of the database containing the collation of the domain (always the current database), null if default or the data type of the domain is not collatable

Note:

Name of the database containing the collation of the domain (always the current database), null if default or the data type of the domain is not collatable

Note:

Not yet implemented

Note:

Applies to a feature not available in PostgreSQL

Note:

Always returns NULL.