LOAD DATABASE
     FROM mysql://root@localhost/db789
     INTO postgres:///pgloader

  WITH data only, truncate, create no tables

  MATERIALIZE VIEWS proceed

  INCLUDING ONLY TABLE NAMES MATCHING 'proceed'

  BEFORE LOAD DO
  $$ drop schema if exists matview cascade; $$,
  $$ drop schema if exists db789 cascade; $$,
  $$ create schema db789; $$,
  $$ create table db789.refrain (id char(1) primary key); $$,
  $$ create table db789.proceed (id char(1) primary key); $$;