drop database generalstorespider; create database generalstorespider charset utf8mb4;
bundle exec sequel -m migrations 'mysql2://localhost/generalstorespider?encoding=utf8mb4&user=root'
bundle exec rake import_taobao_categories
drop database generalstorespider; create database generalstorespider charset utf8mb4;
bundle exec sequel -m migrations 'mysql2://localhost/generalstorespider?encoding=utf8mb4&user=root'
bundle exec rake import_taobao_categories