pg_namespace #
   The catalog pg_namespace stores namespaces.
   A namespace is the structure underlying SQL schemas: each namespace
   can have a separate collection of relations, types, etc. without name
   conflicts.
  
Table 51.32. pg_namespace Columns
| Column Type Description | 
|---|
| 
        Row identifier | 
| 
        Name of the namespace | 
| 
        Owner of the namespace | 
| 
        Access privileges; see Section 5.8 for details |