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6c066c1a4a
* test: migrate join tests Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * chore: update test results after rebasing main branch Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * fix: unstable query sort results and natural_join test Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * fix: count(*) with joining Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * fix: unstable query sort results and style Signed-off-by: Dennis Zhuang <killme2008@gmail.com> --------- Signed-off-by: Dennis Zhuang <killme2008@gmail.com>
65 lines
2.0 KiB
SQL
65 lines
2.0 KiB
SQL
-- Migrated from DuckDB test: test/sql/join/ USING clause tests
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-- Tests USING clause join syntax
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CREATE TABLE orders_using(order_id INTEGER, customer_id INTEGER, total DOUBLE, ts TIMESTAMP TIME INDEX);
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CREATE TABLE customers_using(customer_id INTEGER, customer_name VARCHAR, city VARCHAR, ts TIMESTAMP TIME INDEX);
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CREATE TABLE payments_using(payment_id INTEGER, order_id INTEGER, amount DOUBLE, "method" VARCHAR, ts TIMESTAMP TIME INDEX);
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INSERT INTO orders_using VALUES
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(1, 101, 250.00, 1000), (2, 102, 180.00, 2000), (3, 101, 420.00, 3000), (4, 103, 95.00, 4000);
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INSERT INTO customers_using VALUES
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(101, 'John Doe', 'NYC', 1000), (102, 'Jane Smith', 'LA', 2000), (103, 'Bob Wilson', 'Chicago', 3000);
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INSERT INTO payments_using VALUES
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(1, 1, 250.00, 'Credit', 1000), (2, 2, 180.00, 'Debit', 2000),
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(3, 3, 420.00, 'Credit', 3000), (4, 4, 95.00, 'Cash', 4000);
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-- Basic USING clause join
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SELECT order_id, customer_name, total
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FROM orders_using
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INNER JOIN customers_using USING (customer_id)
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ORDER BY order_id;
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-- Multiple USING clause joins
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SELECT o.order_id, c.customer_name, p.amount, p."method"
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FROM orders_using o
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INNER JOIN customers_using c USING (customer_id)
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INNER JOIN payments_using p USING (order_id)
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ORDER BY o.order_id;
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-- LEFT JOIN with USING
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SELECT c.customer_name, o.order_id, o.total
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FROM customers_using c
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LEFT JOIN orders_using o USING (customer_id)
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ORDER BY c.customer_id, o.order_id;
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-- USING with aggregation
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SELECT
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c.city,
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COUNT(o.order_id) as order_count,
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SUM(o.total) as total_sales
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FROM customers_using c
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LEFT JOIN orders_using o USING (customer_id)
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GROUP BY c.city
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ORDER BY total_sales DESC;
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-- USING with complex expressions
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SELECT
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c.customer_name,
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COUNT(o.order_id) as order_count,
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COALESCE(SUM(o.total), 0) as total_spent
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FROM customers_using c
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LEFT JOIN orders_using o USING (customer_id)
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GROUP BY c.customer_id, c.customer_name
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HAVING COUNT(o.order_id) != 0
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ORDER BY total_spent DESC;
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DROP TABLE orders_using;
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DROP TABLE customers_using;
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DROP TABLE payments_using;
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