The view pg_timezone_abbrevs provides a list of time zone abbreviations that are currently recognized by the datetime input routines. The contents
The catalog pg_shdescription stores optional descriptions (comments) for shared database objects. Descriptions can be manipulated with the
The catalog pg_proc stores information about functions (or procedures). See
The catalog pg_foreign_data_wrapper stores foreign-data wrapper definitions. A foreign-data wrapper is the mechanism by which external data
The pg_available_extension_versions view lists the specific extension versions that are available for installation. See also the
The view pg_shadow exists for backwards compatibility: it emulates a catalog that existed in PostgreSQL before
The catalog pg_largeobject_metadata holds metadata associated with large objects. The actual large object data is stored in
The pg_enum catalog contains entries showing the values and labels for each enum type. The internal representation of a given enum value is
The view pg_roles provides access to information about database roles. This is simply a publicly readable view of
The catalog pg_cast stores data type conversion paths, both built-in and user-defined. It should be noted that
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