Drop multiple tables

In a migration, ignoring foreign key constraints:

client = ActiveRecord::Base.connection.raw_connection
 
client.query 'BEGIN'
client.query 'SET foreign_key_checks = 0;'
client.query 'DROP TABLE first_table;'
client.query 'DROP TABLE second_table;'
client.query 'SET foreign_key_checks = 1;'
client.query 'COMMIT'