text: CREATE SCHEMA retail;
  
  CREATE TABLE retail.user_purchase (
      invoice_number varchar(10),
      stock_code varchar(20),
      detail varchar(1000),
      quantity int,
      invoice_date timestamp,
      unit_price Numeric(8,3),
      customer_id int,
      country varchar(20)
  );
  
  COPY retail.user_purchase(invoice_number,stock_code,detail,quantity,invoice_date,unit_price,customer_id,country) 
  FROM '/data/retail/OnlineRetail.csv' DELIMITER ','  CSV HEADER;