pg_restore restores a PostgreSQL database from an archive file created by pg_dump.

     pg_restore [connection-option…] [option…] [filename]

     Example:

     We have dumped a database called mydb into a custom-format dump file:

     pg_dump -Fc mydb > db.dump

     To drop the database and recreate it from the dump:

     $ dropdb mydb

     $ pg_restore -C -d postgres db.dump

      The database named in the -d switch can be any database existing in the  cluster; pg_restore only uses it to issue the CREATE DATABASE command  for mydb. With -C, data is always restored into the database name that appears in the dump file.

   To reload the dump into a new database called newdb:

    $ createdb -T template0 newdb

    $ pg_restore -d newdb db.dump

    Notice we don’t use -C, and instead connect directly to the database to be restored into. Also note that we clone the new database from template0 not template1, to ensure it is initially empty.