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import polars as pl
from polars_queries import utils
Q_NUM = 21
def q():
line_item_ds = utils.get_line_item_ds()
supplier_ds = utils.get_supplier_ds()
nation_ds = utils.get_nation_ds()
orders_ds = utils.get_orders_ds()
var_1 = "SAUDI ARABIA"
res_1 = (
(
line_item_ds.group_by("l_orderkey")
.agg(pl.col("l_suppkey").n_unique().alias("nunique_col"))
.filter(pl.col("nunique_col") > 1)
.join(
line_item_ds.filter(pl.col("l_receiptdate") > pl.col("l_commitdate")),
on="l_orderkey",
)
)
).cache()
q_final = (
res_1.group_by("l_orderkey")
.agg(pl.col("l_suppkey").n_unique().alias("nunique_col"))
.join(res_1, on="l_orderkey")
.join(supplier_ds, left_on="l_suppkey", right_on="s_suppkey")
.join(nation_ds, left_on="s_nationkey", right_on="n_nationkey")
.join(orders_ds, left_on="l_orderkey", right_on="o_orderkey")
.filter(pl.col("nunique_col") == 1)
.filter(pl.col("n_name") == var_1)
.filter(pl.col("o_orderstatus") == "F")
.group_by("s_name")
.agg(pl.count().alias("numwait"))
.sort(by=["numwait", "s_name"], descending=[True, False])
.limit(100)
)
utils.run_query(Q_NUM, q_final)
if __name__ == "__main__":
q()
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