Added test for view having nested subqueries

Signed-off-by: Rahul Parande <rparande@amazon.com>

Author: Rahul Parande

test/JDBC/expected/weak-binding-vu-cleanup.out

@@ -153,6 +153,15 @@ GO
 DROP VIEW IF EXISTS multi_table_complex_view;
 GO
 
+DROP VIEW IF EXISTS avg_d_per_c;
+GO
+
+DROP VIEW IF EXISTS above_avg_d;
+GO
+
+DROP VIEW IF EXISTS complex_nested_view;
+GO
+
 USE master;
 GO
 

test/JDBC/expected/weak-binding-vu-verify.out

@@ -1837,3 +1837,63 @@ GO
 int#!#varchar#!#varchar#!#varchar#!#date
 ~~END~~
 
+
+CREATE VIEW avg_d_per_c AS
+SELECT c, AVG(d) AS avg_d
+FROM t
+GROUP BY c;
+GO
+
+CREATE VIEW above_avg_d AS
+SELECT t.a, t.b, t.c, t.d
+FROM t
+JOIN avg_d_per_c ON t.c = avg_d_per_c.c
+WHERE t.d > avg_d_per_c.avg_d;
+GO
+
+CREATE VIEW complex_nested_view AS
+SELECT 
+    t.a,
+    t.b,
+    t.c,
+    t.d,
+    (SELECT AVG(avg_d) FROM avg_d_per_c) AS overall_avg_d
+FROM t
+WHERE t.a IN (
+    SELECT a
+    FROM above_avg_d
+    WHERE above_avg_d.d > (
+        SELECT AVG(d)
+        FROM t AS t2
+        WHERE t2.c IN (
+            SELECT c
+            FROM avg_d_per_c
+            WHERE avg_d > (SELECT AVG(avg_d) FROM avg_d_per_c)
+        )
+    )
+);
+GO
+
+DROP VIEW avg_d_per_c;
+GO
+
+SELECT * FROM complex_nested_view;
+GO
+~~ERROR (Code: 33557097)~~
+
+~~ERROR (Message: relation "avg_d_per_c" does not exist)~~
+
+
+-- Recreate the base table
+CREATE VIEW avg_d_per_c AS
+SELECT c, AVG(d) AS avg_d
+FROM t
+GROUP BY c;
+GO
+
+SELECT * FROM complex_nested_view;
+GO
+~~START~~
+int#!#varchar#!#varchar#!#int#!#int
+~~END~~
+

test/JDBC/input/views/weak-binding-vu-cleanup.sql

@@ -153,6 +153,15 @@ GO
 DROP VIEW IF EXISTS multi_table_complex_view;
 GO
 
+DROP VIEW IF EXISTS avg_d_per_c;
+GO
+
+DROP VIEW IF EXISTS above_avg_d;
+GO
+
+DROP VIEW IF EXISTS complex_nested_view;
+GO
+
 USE master;
 GO
 

test/JDBC/input/views/weak-binding-vu-verify.sql

@@ -1268,4 +1268,56 @@ CREATE TABLE cmp_t (
 GO
 
 SELECT * FROM multi_table_complex_view;
+GO
+
+CREATE VIEW avg_d_per_c AS
+SELECT c, AVG(d) AS avg_d
+FROM t
+GROUP BY c;
+GO
+
+CREATE VIEW above_avg_d AS
+SELECT t.a, t.b, t.c, t.d
+FROM t
+JOIN avg_d_per_c ON t.c = avg_d_per_c.c
+WHERE t.d > avg_d_per_c.avg_d;
+GO
+
+CREATE VIEW complex_nested_view AS
+SELECT 
+    t.a,
+    t.b,
+    t.c,
+    t.d,
+    (SELECT AVG(avg_d) FROM avg_d_per_c) AS overall_avg_d
+FROM t
+WHERE t.a IN (
+    SELECT a
+    FROM above_avg_d
+    WHERE above_avg_d.d > (
+        SELECT AVG(d)
+        FROM t AS t2
+        WHERE t2.c IN (
+            SELECT c
+            FROM avg_d_per_c
+            WHERE avg_d > (SELECT AVG(avg_d) FROM avg_d_per_c)
+        )
+    )
+);
+GO
+
+DROP VIEW avg_d_per_c;
+GO
+
+SELECT * FROM complex_nested_view;
+GO
+
+-- Recreate the base table
+CREATE VIEW avg_d_per_c AS
+SELECT c, AVG(d) AS avg_d
+FROM t
+GROUP BY c;
+GO
+
+SELECT * FROM complex_nested_view;
 GO