spark_queries/q21.py

from spark_queries import utils

Q_NUM = 21


def q():
    query_str = f"""
    select
        s_name,
        count(*) as numwait
    from
        supplier,
        lineitem l1,
        orders,
        nation
    where
        s_suppkey = l1.l_suppkey
        and o_orderkey = l1.l_orderkey
        and o_orderstatus = 'F'
        and l1.l_receiptdate > l1.l_commitdate
        and exists (
            select
                *
            from
                lineitem l2
            where
                l2.l_orderkey = l1.l_orderkey
                and l2.l_suppkey <> l1.l_suppkey
        )
        and not exists (
            select
                *
            from
                lineitem l3
            where
                l3.l_orderkey = l1.l_orderkey
                and l3.l_suppkey <> l1.l_suppkey
                and l3.l_receiptdate > l3.l_commitdate
        )
        and s_nationkey = n_nationkey
        and n_name = 'SAUDI ARABIA'
    group by
        s_name
    order by
        numwait desc,
        s_name
    limit 100
	"""

    utils.get_line_item_ds()
    utils.get_supplier_ds()
    utils.get_nation_ds()
    utils.get_orders_ds()

    q_final = utils.get_or_create_spark().sql(query_str)

    utils.run_query(Q_NUM, q_final)


if __name__ == "__main__":
    q()