Datasets:
File size: 2,854 Bytes
7e5adcc | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 | -- Retail star schema for ClickHouse 24.3.
-- Money is Decimal(18,2), discount_pct Decimal(5,4), dates Date, date keys UInt32 (yyyymmdd).
-- Sort keys follow the cube's access paths: time first on the facts, then the dimension a slice usually takes.
CREATE TABLE IF NOT EXISTS dim_date
(
date_key UInt32,
date Date,
year UInt16,
quarter UInt8,
quarter_name LowCardinality(String),
month UInt8,
month_name LowCardinality(String),
year_month UInt32,
day_of_week UInt8,
day_name LowCardinality(String),
is_weekend UInt8
)
ENGINE = MergeTree
ORDER BY date_key;
CREATE TABLE IF NOT EXISTS dim_product
(
product_id UInt32,
product_name String,
subcategory LowCardinality(String),
category LowCardinality(String),
brand LowCardinality(String),
list_price Decimal(18, 2),
unit_cost Decimal(18, 2)
)
ENGINE = MergeTree
ORDER BY product_id;
CREATE TABLE IF NOT EXISTS dim_customer
(
customer_id UInt32,
customer_name String,
segment LowCardinality(Nullable(String)),
country LowCardinality(String),
region LowCardinality(String),
city LowCardinality(String),
signup_date Date
)
ENGINE = MergeTree
ORDER BY customer_id;
CREATE TABLE IF NOT EXISTS dim_store
(
store_id UInt16,
store_name LowCardinality(String),
channel LowCardinality(String),
country LowCardinality(String),
region LowCardinality(String),
city LowCardinality(String)
)
ENGINE = MergeTree
ORDER BY store_id;
CREATE TABLE IF NOT EXISTS orders
(
order_id UInt32,
order_date Date,
customer_id Nullable(UInt32),
store_id UInt16
)
ENGINE = MergeTree
ORDER BY (order_date, order_id);
CREATE TABLE IF NOT EXISTS order_lines
(
order_line_id UInt32,
order_id UInt32,
date_key UInt32,
order_date Date,
customer_id Nullable(UInt32),
store_id UInt16,
product_id UInt32,
quantity UInt16,
unit_price Decimal(18, 2),
discount_pct Decimal(5, 4),
net_amount Decimal(18, 2),
unit_cost Decimal(18, 2),
cost_amount Decimal(18, 2)
)
ENGINE = MergeTree
ORDER BY (date_key, product_id, order_line_id);
CREATE TABLE IF NOT EXISTS returns
(
return_id UInt32,
order_line_id UInt32,
order_id UInt32,
product_id UInt32,
customer_id Nullable(UInt32),
store_id UInt16,
sale_date Date,
sale_date_key UInt32,
return_date Date,
return_date_key UInt32,
returned_qty UInt16,
refund_amount Decimal(18, 2),
reason LowCardinality(String)
)
ENGINE = MergeTree
ORDER BY (sale_date_key, product_id, return_id);
|