Datasets:
File size: 1,871 Bytes
e8c001c | 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 | -- flinksql_014: Interval Join + 10-min TUMBLE 窗口聚合 (订单支付)
-- 双源 Interval Join → TUMBLE 聚合 → COUNT + SUM
-- 1. 订单流 datagen 源表
CREATE TABLE orders_source (
order_id INT,
user_id INT,
order_time AS LOCALTIMESTAMP,
WATERMARK FOR order_time AS order_time - INTERVAL '60' SECOND
) WITH (
'connector' = 'datagen',
'rows-per-second' = '10000',
'fields.order_id.kind' = 'random',
'fields.order_id.min' = '1',
'fields.order_id.max' = '1000000',
'fields.user_id.kind' = 'random',
'fields.user_id.min' = '1',
'fields.user_id.max' = '100000'
);
-- 2. 支付流 datagen 源表
CREATE TABLE payments_source (
order_id INT,
pay_amount DOUBLE,
pay_time AS LOCALTIMESTAMP,
WATERMARK FOR pay_time AS pay_time - INTERVAL '60' SECOND
) WITH (
'connector' = 'datagen',
'rows-per-second' = '10000',
'fields.order_id.kind' = 'random',
'fields.order_id.min' = '1',
'fields.order_id.max' = '1000000',
'fields.pay_amount.kind' = 'random',
'fields.pay_amount.min' = '0',
'fields.pay_amount.max' = '5000'
);
-- 3. Console 输出表
CREATE TABLE console_output (
window_start VARCHAR,
window_end VARCHAR,
order_count BIGINT,
total_pay DOUBLE
) WITH (
'connector' = 'print'
);
-- 4. Interval Join + TUMBLE 窗口聚合
INSERT INTO console_output
SELECT
CAST(TUMBLE_START(o.order_time, INTERVAL '10' MINUTE) AS VARCHAR) AS window_start,
CAST(TUMBLE_END(o.order_time, INTERVAL '10' MINUTE) AS VARCHAR) AS window_end,
COUNT(*) AS order_count,
SUM(p.pay_amount) AS total_pay
FROM orders_source o
JOIN payments_source p
ON o.order_id = p.order_id
WHERE
p.pay_time BETWEEN o.order_time - INTERVAL '10' MINUTE
AND o.order_time + INTERVAL '10' MINUTE
GROUP BY
TUMBLE(o.order_time, INTERVAL '10' MINUTE);
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