51.56. pg_tablespace
  The catalog
  
   pg_tablespace
  
  stores information
   about the available tablespaces.  Tables can be placed in particular
   tablespaces to aid administration of disk layout.
 
  Unlike most system catalogs,
  
   pg_tablespace
  
  is shared across all databases of a cluster: there is only one
   copy of
  
   pg_tablespace
  
  per cluster, not
   one per database.
 
   
    Table 51.56. 
    
     pg_tablespace
    
    Columns
   
  
| Column Type Description | 
|---|
| 
         Row identifier | 
| 
         Tablespace name | 
| 
         Owner of the tablespace, usually the user who created it | 
| 
         Access privileges; see Section 5.8 for details | 
| 
         Tablespace-level options, as " keyword=value " strings |