TPC-H Skew Q10 — Returned Item Reporting

TPC-H Skew benchmark · all TPC-H Skew queries

Customers with returned parts and revenue impact

Representative SQL

Rendered for DataFusion with default parameters.

SELECT
  c_custkey,
  c_name,
  SUM(l_extendedprice * (
    1 - l_discount
  )) AS revenue,
  c_acctbal,
  n_name,
  c_address,
  c_phone,
  c_comment
FROM customer, orders, lineitem, nation
WHERE
  c_custkey = o_custkey
  AND l_orderkey = o_orderkey
  AND o_orderdate >= CAST('1993-10-01' AS DATE)
  AND o_orderdate < CAST('1993-10-01' AS DATE) + INTERVAL '3 MONTH'
  AND l_returnflag = 'R'
  AND c_nationkey = n_nationkey
GROUP BY
  c_custkey,
  c_name,
  c_acctbal,
  c_phone,
  n_name,
  c_address,
  c_comment
ORDER BY
  revenue DESC
LIMIT 20

Representative DataFrame

Expression family (Polars, PySpark, DataFusion), default parameters.

def q10_expression_impl(ctx: DataFrameContext) -> Any:
    customer = ctx.get_table("customer")
    orders = ctx.get_table("orders")
    lineitem = ctx.get_table("lineitem")
    nation = ctx.get_table("nation")
    col = ctx.col
    lit = ctx.lit

    params = get_tpch_parameters(10)
    start_date = params["start_date"]
    end_date = params["end_date"]

    return (
        customer.join(orders, left_on="c_custkey", right_on="o_custkey")
        .filter((col("o_orderdate") >= lit(start_date)) & (col("o_orderdate") < lit(end_date)))
        .join(lineitem, left_on="o_orderkey", right_on="l_orderkey")
        .filter(col("l_returnflag") == lit("R"))
        .join(nation, left_on="c_nationkey", right_on="n_nationkey")
        .group_by(
            "c_custkey",
            "c_name",
            "c_acctbal",
            "c_phone",
            "n_name",
            "c_address",
            "c_comment",
        )
        .agg((col("l_extendedprice") * (lit(1) - col("l_discount"))).sum().alias("revenue"))
        .select("c_custkey", "c_name", "revenue", "c_acctbal", "n_name", "c_address", "c_phone", "c_comment")
        .sort("revenue", descending=True)
        .limit(20)
    )

Get the exact query for your run

The blocks above are representative. To get the precise statement a specific platform runs at a specific scale, substitute your own values:

from benchbox import TPCHSkew

bench = TPCHSkew(scale_factor=0.01)            # your scale factor
queries = bench.get_queries(dialect="datafusion")   # your platform's dialect; drop dialect= for native SQL
print(queries['10'])

Parameter substitution for this benchmark is seed-driven; pass a seed for a specific stream’s parameters:

print(bench.get_query(10, scale_factor=0.01, seed=42, dialect="datafusion"))

For the DataFrame form:

from benchbox.core.query_catalog import get_dataframe_render

print(get_dataframe_render('tpch_skew', '10', family="expression").source)  # or family="pandas"

Source

Query text: benchbox/_binaries/tpc-h/templates/queries/10.sql