COMMIT — commit the current transaction
COMMIT [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]
   COMMIT commits the current transaction. All
   changes made by the transaction become visible to others
   and are guaranteed to be durable if a crash occurs.
  
WORKTRANSACTIONOptional key words. They have no effect.
AND CHAIN
      If AND CHAIN is specified, a new transaction is
      immediately started with the same transaction characteristics (see SET TRANSACTION) as the just finished one.  Otherwise,
      no new transaction is started.
     
Use ROLLBACK to abort a transaction.
   Issuing COMMIT when not inside a transaction does
   no harm, but it will provoke a warning message.  COMMIT AND
   CHAIN when not inside a transaction is an error.
  
To commit the current transaction and make all changes permanent:
COMMIT;
   The command COMMIT conforms to the SQL standard.  The
   form COMMIT TRANSACTION is a PostgreSQL extension.