add complext test queries

testdata/postgresql/complex/delete-complex-subqueries-joins.expected

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+[
+    {
+        "expected": "DELETE FROM users u USING orders o, order_items oi, products p WHERE u.id = o.user_id AND o.id = oi.order_id AND oi.product_id = p.id AND p.category = ? AND o.order_date < NOW ( ) - INTERVAL ?",
+        "statement_metadata": {
+            "size": 11,
+            "tables": [
+                "users"
+            ],
+            "commands": [
+                "DELETE"
+            ],
+            "comments": [],
+            "procedures": []
+        }
+    }
+]

testdata/postgresql/complex/delete-complex-subqueries-joins.sql

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+DELETE FROM 
+  users u
+USING 
+  orders o,
+  order_items oi,
+  products p
+WHERE 
+  u.id = o.user_id
+AND o.id = oi.order_id
+AND oi.product_id = p.id
+AND p.category = 'obsolete'
+AND o.order_date < NOW() - INTERVAL '5 years';

testdata/postgresql/complex/insert-complex-select-joins.expected

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+[
+    {
+        "expected": "INSERT INTO order_summaries ( order_id, product_count, total_amount, average_product_price ) SELECT o.id, COUNT ( p.id ), SUM ( oi.amount ), AVG ( p.price ) FROM orders o JOIN order_items oi ON o.id = oi.order_id JOIN products p ON oi.product_id = p.id GROUP BY o.id HAVING SUM ( oi.amount ) > ?",
+        "statement_metadata": {
+            "size": 56,
+            "tables": [
+                "order_summaries",
+                "orders",
+                "order_items",
+                "products"
+            ],
+            "commands": [
+                "INSERT",
+                "SELECT",
+                "JOIN"
+            ],
+            "comments": [],
+            "procedures": []
+        }
+    }
+]

testdata/postgresql/complex/insert-complex-select-joins.sql

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+INSERT INTO order_summaries (order_id, product_count, total_amount, average_product_price)
+SELECT 
+  o.id,
+  COUNT(p.id),
+  SUM(oi.amount),
+  AVG(p.price)
+FROM 
+  orders o
+JOIN order_items oi ON o.id = oi.order_id
+JOIN products p ON oi.product_id = p.id
+GROUP BY 
+  o.id
+HAVING 
+  SUM(oi.amount) > 1000;

testdata/postgresql/complex/select-complex-aggregates-subqueries.expected

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+[
+    {
+        "expected": "SELECT u.id, u.name, ( SELECT COUNT ( * ) FROM orders o WHERE o.user_id = u.id ), ( SELECT SUM ( amount ) FROM payments p WHERE p.user_id = u.id ), ( SELECT AVG ( rating ) FROM reviews r WHERE r.user_id = u.id ) FROM users u WHERE EXISTS ( SELECT ? FROM logins l WHERE l.user_id = u.id AND l.time > NOW ( ) - INTERVAL ? ) AND u.status = ? ORDER BY total_payments DESC, average_rating DESC, order_count DESC LIMIT ?",
+        "statement_metadata": {
+            "size": 38,
+            "tables": [
+                "orders",
+                "payments",
+                "reviews",
+                "users",
+                "logins"
+            ],
+            "commands": [
+                "SELECT"
+            ],
+            "comments": [],
+            "procedures": []
+        }
+    }
+]

testdata/postgresql/complex/select-complex-aggregates-subqueries.sql

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+SELECT 
+  u.id,
+  u.name,
+  (SELECT COUNT(*) FROM orders o WHERE o.user_id = u.id) AS order_count,
+  (SELECT SUM(amount) FROM payments p WHERE p.user_id = u.id) AS total_payments,
+  (SELECT AVG(rating) FROM reviews r WHERE r.user_id = u.id) AS average_rating
+FROM 
+  users u
+WHERE 
+  EXISTS (
+    SELECT 1 FROM logins l WHERE l.user_id = u.id AND l.time > NOW() - INTERVAL '1 month'
+  )
+AND u.status = 'active'
+ORDER BY 
+  total_payments DESC, average_rating DESC, order_count DESC
+LIMIT 10;

testdata/postgresql/complex/select-complex-joins-window-functions.expected

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+[
+    {
+        "expected": "SELECT e?.name, e?.salary, e?.name, AVG ( e?.salary ) OVER ( PARTITION BY e?.manager_id ), RANK ( ) OVER ( ORDER BY e?.salary DESC ) FROM employees e? LEFT JOIN employees e? ON e?.manager_id = e?.id WHERE e?.department_id IN ( SELECT id FROM departments WHERE name LIKE ? ) AND e?.hire_date > ? ORDER BY salary_rank, avg_manager_salary DESC",
+        "statement_metadata": {
+            "size": 30,
+            "tables": [
+                "employees",
+                "departments"
+            ],
+            "commands": [
+                "SELECT",
+                "JOIN"
+            ],
+            "comments": [],
+            "procedures": []
+        }
+    }
+]

testdata/postgresql/complex/select-complex-joins-window-functions.sql

@@ -0,0 +1,15 @@
+SELECT 
+  e1.name AS employee_name,
+  e1.salary,
+  e2.name AS manager_name,
+  AVG(e2.salary) OVER (PARTITION BY e1.manager_id) AS avg_manager_salary,
+  RANK() OVER (ORDER BY e1.salary DESC) AS salary_rank
+FROM 
+  employees e1
+LEFT JOIN employees e2 ON e1.manager_id = e2.id
+WHERE 
+  e1.department_id IN (SELECT id FROM departments WHERE name LIKE 'IT%')
+AND 
+  e1.hire_date > '2020-01-01'
+ORDER BY 
+  salary_rank, avg_manager_salary DESC;

testdata/postgresql/complex/select-nested-subqueries-aggregates-limits.expected

@@ -0,0 +1,16 @@
+[
+    {
+        "expected": "SELECT user_id, order_id, order_total, user_total FROM ( SELECT o.user_id, o.id, o.total, ( SELECT SUM ( total ) FROM orders WHERE user_id = o.user_id ), RANK ( ) OVER ( PARTITION BY o.user_id ORDER BY o.total DESC ) FROM orders o ) sub WHERE sub.rnk = ? AND user_total > ( SELECT AVG ( total ) * ? FROM orders )",
+        "statement_metadata": {
+            "size": 12,
+            "tables": [
+                "orders"
+            ],
+            "commands": [
+                "SELECT"
+            ],
+            "comments": [],
+            "procedures": []
+        }
+    }
+]

testdata/postgresql/complex/select-nested-subqueries-aggregates-limits.sql

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+SELECT 
+  user_id,
+  order_id,
+  order_total,
+  user_total
+FROM (
+  SELECT 
+    o.user_id,
+    o.id AS order_id,
+    o.total AS order_total,
+    (SELECT SUM(total) FROM orders WHERE user_id = o.user_id) AS user_total,
+    RANK() OVER (PARTITION BY o.user_id ORDER BY o.total DESC) AS rnk
+  FROM 
+    orders o
+) sub
+WHERE 
+  sub.rnk = 1
+AND user_total > (
+  SELECT 
+    AVG(total) * 2 
+  FROM orders
+);

testdata/postgresql/complex/update-complex-subquery-conditional.expected

@@ -0,0 +1,18 @@
+[
+    {
+        "expected": "UPDATE products p SET price = CASE WHEN p.stock < ? THEN p.price * ? WHEN p.stock BETWEEN ? AND ? THEN p.price ELSE p.price * ? END, last_updated = NOW ( ) FROM ( SELECT product_id, SUM ( quantity ) FROM inventory GROUP BY product_id ) WHERE sub.product_id = p.id",
+        "statement_metadata": {
+            "size": 29,
+            "tables": [
+                "products",
+                "inventory"
+            ],
+            "commands": [
+                "UPDATE",
+                "SELECT"
+            ],
+            "comments": [],
+            "procedures": []
+        }
+    }
+]

testdata/postgresql/complex/update-complex-subquery-conditional.sql

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+UPDATE 
+  products p
+SET 
+  price = CASE 
+    WHEN p.stock < 10 THEN p.price * 1.10
+    WHEN p.stock BETWEEN 10 AND 50 THEN p.price
+    ELSE p.price * 0.90
+  END,
+  last_updated = NOW()
+FROM (
+  SELECT 
+    product_id, 
+    SUM(quantity) AS stock
+  FROM 
+    inventory
+  GROUP BY 
+    product_id
+) AS sub
+WHERE 
+  sub.product_id = p.id;