pg_prepared_statements
   The pg_prepared_statements view displays
   all the prepared statements that are available in the current
   session. See PREPARE for more information about prepared
   statements.
  
   pg_prepared_statements contains one row
   for each prepared statement. Rows are added to the view when a new
   prepared statement is created and removed when a prepared statement
   is released (for example, via the DEALLOCATE command).
  
Table 51.77. pg_prepared_statements Columns
| Column Type Description | 
|---|
| 
        The identifier of the prepared statement | 
| 
        
       The query string submitted by the client to create this
       prepared statement. For prepared statements created via SQL,
       this is the  | 
| 
        The time at which the prepared statement was created | 
| 
        
       The expected parameter types for the prepared statement in the
       form of an array of  | 
| 
        
        | 
   The pg_prepared_statements view is read only.