Documentazione di PostgreSQL 9.0 > Client Interfaces > The Information Schema > data_type_privileges
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34.15. data_type_privileges

The view data_type_privileges identifies all data type descriptors that the current user has access to, by way of being the owner of the described object or having some privilege for it. A data type descriptor is generated whenever a data type is used in the definition of a table column, a domain, or a function (as parameter or return type) and stores some information about how the data type is used in that instance (for example, the declared maximum length, if applicable). Each data type descriptor is assigned an arbitrary identifier that is unique among the data type descriptor identifiers assigned for one object (table, domain, function). This view is probably not useful for applications, but it is used to define some other views in the information schema.

Tabella 34.13. data_type_privileges Columns

NameData TypeDescription
object_catalogsql_identifierName of the database that contains the described object (always the current database)
object_schemasql_identifierName of the schema that contains the described object
object_namesql_identifierName of the described object
object_typecharacter_data The type of the described object: one of TABLE (the data type descriptor pertains to a column of that table), DOMAIN (the data type descriptors pertains to that domain), ROUTINE (the data type descriptor pertains to a parameter or the return data type of that function).
dtd_identifiersql_identifier The identifier of the data type descriptor, which is unique among the data type descriptors for that same object.

Documentazione di PostgreSQL 9.0 > Client Interfaces > The Information Schema > data_type_privileges
Precedenteconstraint_table_usagedomain_constraintsSuccessivo