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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>
114 lines
4.6 KiB
Plaintext
114 lines
4.6 KiB
Plaintext
-- Migrated from DuckDB test: test/sql/join/right_outer/ pattern tests
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-- Tests right join patterns
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CREATE TABLE inventory(item_id INTEGER, item_name VARCHAR, stock_quantity INTEGER, ts TIMESTAMP TIME INDEX);
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Affected Rows: 0
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CREATE TABLE purchase_orders(po_id INTEGER, item_id INTEGER, ordered_qty INTEGER, order_date DATE, ts TIMESTAMP TIME INDEX);
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Affected Rows: 0
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INSERT INTO inventory VALUES
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(1, 'Widget A', 100, 1000), (2, 'Widget B', 50, 2000), (3, 'Widget C', 0, 3000);
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Affected Rows: 3
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INSERT INTO purchase_orders VALUES
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(1, 1, 25, '2023-01-01', 1000), (2, 2, 30, '2023-01-02', 2000),
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(3, 4, 15, '2023-01-03', 3000), (4, 5, 40, '2023-01-04', 4000),
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(5, 1, 10, '2023-01-05', 5000);
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Affected Rows: 5
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-- Right join to show all orders (including for non-inventory items)
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SELECT
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po.po_id, po.ordered_qty, po.order_date,
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COALESCE(i.item_name, 'Unknown Item') as item_name,
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COALESCE(i.stock_quantity, 0) as current_stock
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FROM inventory i
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RIGHT JOIN purchase_orders po ON i.item_id = po.item_id
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ORDER BY po.order_date, po.po_id;
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+-------+-------------+------------+--------------+---------------+
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| po_id | ordered_qty | order_date | item_name | current_stock |
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+-------+-------------+------------+--------------+---------------+
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| 1 | 25 | 2023-01-01 | Widget A | 100 |
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| 2 | 30 | 2023-01-02 | Widget B | 50 |
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| 3 | 15 | 2023-01-03 | Unknown Item | 0 |
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| 4 | 40 | 2023-01-04 | Unknown Item | 0 |
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| 5 | 10 | 2023-01-05 | Widget A | 100 |
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+-------+-------------+------------+--------------+---------------+
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-- Right join with aggregation
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SELECT
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po.item_id,
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COUNT(po.po_id) as order_count,
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SUM(po.ordered_qty) as total_ordered,
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COALESCE(MAX(i.stock_quantity), 0) as stock_level,
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CASE WHEN i.item_id IS NULL THEN 'Not In Inventory' ELSE 'In Stock' END as inventory_status
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FROM inventory i
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RIGHT JOIN purchase_orders po ON i.item_id = po.item_id
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GROUP BY po.item_id, i.item_id
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ORDER BY order_count DESC, po.item_id ASC;
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+---------+-------------+---------------+-------------+------------------+
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| item_id | order_count | total_ordered | stock_level | inventory_status |
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+---------+-------------+---------------+-------------+------------------+
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| 1 | 2 | 35 | 100 | In Stock |
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| 2 | 1 | 30 | 50 | In Stock |
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| 4 | 1 | 15 | 0 | Not In Inventory |
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| 5 | 1 | 40 | 0 | Not In Inventory |
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+---------+-------------+---------------+-------------+------------------+
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-- Right join to identify missing inventory records
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SELECT
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po.item_id as missing_item_id,
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COUNT(*) as orders_for_missing_item,
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SUM(po.ordered_qty) as total_qty_ordered
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FROM inventory i
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RIGHT JOIN purchase_orders po ON i.item_id = po.item_id
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WHERE i.item_id IS NULL
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GROUP BY po.item_id
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ORDER BY total_qty_ordered DESC, po.item_id ASC;
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+-----------------+-------------------------+-------------------+
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| missing_item_id | orders_for_missing_item | total_qty_ordered |
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+-----------------+-------------------------+-------------------+
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| 5 | 1 | 40 |
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| 4 | 1 | 15 |
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+-----------------+-------------------------+-------------------+
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-- Right join with filtering and conditions
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SELECT
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po.po_id,
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po.item_id,
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po.ordered_qty,
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COALESCE(i.item_name, 'Missing from inventory') as item_description,
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CASE
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WHEN i.item_id IS NULL THEN 'Order for unknown item'
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WHEN i.stock_quantity < po.ordered_qty THEN 'Insufficient stock'
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ELSE 'Can fulfill'
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END as fulfillment_status
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FROM inventory i
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RIGHT JOIN purchase_orders po ON i.item_id = po.item_id
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ORDER BY po.order_date;
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+-------+---------+-------------+------------------------+------------------------+
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| po_id | item_id | ordered_qty | item_description | fulfillment_status |
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+-------+---------+-------------+------------------------+------------------------+
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| 1 | 1 | 25 | Widget A | Can fulfill |
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| 2 | 2 | 30 | Widget B | Can fulfill |
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| 3 | 4 | 15 | Missing from inventory | Order for unknown item |
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| 4 | 5 | 40 | Missing from inventory | Order for unknown item |
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| 5 | 1 | 10 | Widget A | Can fulfill |
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+-------+---------+-------------+------------------------+------------------------+
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DROP TABLE inventory;
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Affected Rows: 0
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DROP TABLE purchase_orders;
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Affected Rows: 0
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