END — commit the current transaction
END [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]
   END commits the current transaction. All changes
   made by the transaction become visible to others and are guaranteed
   to be durable if a crash occurs.  This command is a
   PostgreSQL extension
   that is equivalent to COMMIT.
  
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 END when not inside a transaction does
   no harm, but it will provoke a warning message.
  
To commit the current transaction and make all changes permanent:
END;
   END is a PostgreSQL
   extension that provides functionality equivalent to COMMIT, which is
   specified in the SQL standard.