51.69. pg_backend_memory_contexts
 The view pg_backend_memory_contexts displays all the memory contexts of the server process attached to the current session. 
pg_backend_memory_contexts contains one row for each memory context. 
Table 51.70. pg_backend_memory_contexts Columns
Column Type Description  | 
|---|
 Name of the memory context  | 
 Identification information of the memory context. This field is truncated at 1024 bytes  | 
 Name of the parent of this memory context  | 
 Distance from TopMemoryContext in context tree  | 
 Total bytes allocated for this memory context  | 
 Total number of blocks allocated for this memory context  | 
 Free space in bytes  | 
 Total number of free chunks  | 
 Used space in bytes  | 
 By default, the pg_backend_memory_contexts view can be read only by superusers.