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from datetime import datetime
import polars as pl
from polars_queries import utils
Q_NUM = 14
def q():
line_item_ds = utils.get_line_item_ds()
part_ds = utils.get_part_ds()
var_1 = datetime(1995, 9, 1)
var_2 = datetime(1995, 10, 1)
q_final = (
line_item_ds.join(part_ds, left_on="l_partkey", right_on="p_partkey")
.filter(pl.col("l_shipdate").is_between(var_1, var_2, closed="left"))
.select(
(
100.00
* pl.when(pl.col("p_type").str.contains("PROMO*"))
.then((pl.col("l_extendedprice") * (1 - pl.col("l_discount"))))
.otherwise(0)
.sum()
/ (pl.col("l_extendedprice") * (1 - pl.col("l_discount"))).sum()
)
.round(2)
.alias("promo_revenue")
)
)
utils.run_query(Q_NUM, q_final)
if __name__ == "__main__":
q()
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