def load_staging_tables(cur, conn):
    for query in copy_table_queries:
        print(('Loading data by: ' + query))
        cur.execute(query)
        conn.commit()
def load_staging_tables(cur, conn):
    for query in copy_table_queries:
        print(('Loading data by: ' + query))
        cur.execute(query)
        conn.commit()