--- /dev/null
+CREATE TABLE foo2(fooid int, f2 int);
+INSERT INTO foo2 VALUES(1, 11);
+INSERT INTO foo2 VALUES(2, 22);
+INSERT INTO foo2 VALUES(1, 111);
+CREATE FUNCTION foot(int) returns setof foo2 as 'SELECT * FROM foo2 WHERE fooid = $1;' LANGUAGE SQL;
+-- supposed to fail with ERROR
+select * from foo2, foot(foo2.fooid) z where foo2.f2 = z.f2;
+NOTICE: Adding missing FROM-clause entry for table "foo2"
+ERROR: FROM function expression may not refer to other relations of same query level
+-- function in subselect
+select * from foo2 where f2 in (select f2 from foot(foo2.fooid) z where z.fooid = foo2.fooid) ORDER BY 1,2;
+ fooid | f2
+-------+-----
+ 1 | 11
+ 1 | 111
+ 2 | 22
+(3 rows)
+
+-- function in subselect
+select * from foo2 where f2 in (select f2 from foot(1) z where z.fooid = foo2.fooid) ORDER BY 1,2;
+ fooid | f2
+-------+-----
+ 1 | 11
+ 1 | 111
+(2 rows)
+
+-- function in subselect
+select * from foo2 where f2 in (select f2 from foot(foo2.fooid) z where z.fooid = 1) ORDER BY 1,2;
+ fooid | f2
+-------+-----
+ 1 | 11
+ 1 | 111
+(2 rows)
+
+-- nested functions
+select foot.fooid, foot.f2 from foot(sin(pi()/2)::int) ORDER BY 1,2;
+ fooid | f2
+-------+-----
+ 1 | 11
+ 1 | 111
+(2 rows)
+
+CREATE TABLE foo (fooid int, foosubid int, fooname text, primary key(fooid,foosubid));
+NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index 'foo_pkey' for table 'foo'
+INSERT INTO foo VALUES(1,1,'Joe');
+INSERT INTO foo VALUES(1,2,'Ed');
+INSERT INTO foo VALUES(2,1,'Mary');
+-- sql, proretset = f, prorettype = b
+CREATE FUNCTION getfoo(int) RETURNS int AS 'SELECT $1;' LANGUAGE SQL;
+SELECT * FROM getfoo(1) AS t1;
+ getfoo
+--------
+ 1
+(1 row)
+
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+ getfoo
+--------
+ 1
+(1 row)
+
+-- sql, proretset = t, prorettype = b
+DROP FUNCTION getfoo(int);
+CREATE FUNCTION getfoo(int) RETURNS setof int AS 'SELECT fooid FROM foo WHERE fooid = $1;' LANGUAGE SQL;
+SELECT * FROM getfoo(1) AS t1;
+ getfoo
+--------
+ 1
+ 1
+(2 rows)
+
+DROP VIEW vw_getfoo;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+ getfoo
+--------
+ 1
+ 1
+(2 rows)
+
+-- sql, proretset = t, prorettype = b
+DROP FUNCTION getfoo(int);
+CREATE FUNCTION getfoo(int) RETURNS setof text AS 'SELECT fooname FROM foo WHERE fooid = $1;' LANGUAGE SQL;
+SELECT * FROM getfoo(1) AS t1;
+ getfoo
+--------
+ Joe
+ Ed
+(2 rows)
+
+DROP VIEW vw_getfoo;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+ getfoo
+--------
+ Joe
+ Ed
+(2 rows)
+
+-- sql, proretset = f, prorettype = c
+DROP FUNCTION getfoo(int);
+CREATE FUNCTION getfoo(int) RETURNS foo AS 'SELECT * FROM foo WHERE fooid = $1;' LANGUAGE SQL;
+SELECT * FROM getfoo(1) AS t1;
+ fooid | foosubid | fooname
+-------+----------+---------
+ 1 | 1 | Joe
+(1 row)
+
+DROP VIEW vw_getfoo;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+ fooid | foosubid | fooname
+-------+----------+---------
+ 1 | 1 | Joe
+(1 row)
+
+-- sql, proretset = t, prorettype = c
+DROP FUNCTION getfoo(int);
+CREATE FUNCTION getfoo(int) RETURNS setof foo AS 'SELECT * FROM foo WHERE fooid = $1;' LANGUAGE SQL;
+SELECT * FROM getfoo(1) AS t1;
+ fooid | foosubid | fooname
+-------+----------+---------
+ 1 | 1 | Joe
+ 1 | 2 | Ed
+(2 rows)
+
+DROP VIEW vw_getfoo;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+ fooid | foosubid | fooname
+-------+----------+---------
+ 1 | 1 | Joe
+ 1 | 2 | Ed
+(2 rows)
+
+-- plpgsql, proretset = f, prorettype = b
+DROP FUNCTION getfoo(int);
+CREATE FUNCTION getfoo(int) RETURNS int AS 'DECLARE fooint int; BEGIN SELECT fooid into fooint FROM foo WHERE fooid = $1; RETURN fooint; END;' LANGUAGE 'plpgsql';
+SELECT * FROM getfoo(1) AS t1;
+ getfoo
+--------
+ 1
+(1 row)
+
+DROP VIEW vw_getfoo;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+ getfoo
+--------
+ 1
+(1 row)
+
+-- plpgsql, proretset = f, prorettype = c
+DROP FUNCTION getfoo(int);
+CREATE FUNCTION getfoo(int) RETURNS foo AS 'DECLARE footup foo%ROWTYPE; BEGIN SELECT * into footup FROM foo WHERE fooid = $1; RETURN footup; END;' LANGUAGE 'plpgsql';
+SELECT * FROM getfoo(1) AS t1;
+ fooid | foosubid | fooname
+-------+----------+---------
+ 1 | 1 | Joe
+(1 row)
+
+DROP VIEW vw_getfoo;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+ fooid | foosubid | fooname
+-------+----------+---------
+ 1 | 1 | Joe
+(1 row)
+
+DROP TABLE foo2;
+DROP FUNCTION foot(int);
+DROP TABLE foo;
+DROP FUNCTION getfoo(int);
+DROP VIEW vw_getfoo;
+-- Rescan tests --
+CREATE TABLE foorescan (fooid int, foosubid int, fooname text, primary key(fooid,foosubid));
+NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index 'foorescan_pkey' for table 'foorescan'
+INSERT INTO foorescan values(5000,1,'abc.5000.1');
+INSERT INTO foorescan values(5001,1,'abc.5001.1');
+INSERT INTO foorescan values(5002,1,'abc.5002.1');
+INSERT INTO foorescan values(5003,1,'abc.5003.1');
+INSERT INTO foorescan values(5004,1,'abc.5004.1');
+INSERT INTO foorescan values(5005,1,'abc.5005.1');
+INSERT INTO foorescan values(5006,1,'abc.5006.1');
+INSERT INTO foorescan values(5007,1,'abc.5007.1');
+INSERT INTO foorescan values(5008,1,'abc.5008.1');
+INSERT INTO foorescan values(5009,1,'abc.5009.1');
+INSERT INTO foorescan values(5000,2,'abc.5000.2');
+INSERT INTO foorescan values(5001,2,'abc.5001.2');
+INSERT INTO foorescan values(5002,2,'abc.5002.2');
+INSERT INTO foorescan values(5003,2,'abc.5003.2');
+INSERT INTO foorescan values(5004,2,'abc.5004.2');
+INSERT INTO foorescan values(5005,2,'abc.5005.2');
+INSERT INTO foorescan values(5006,2,'abc.5006.2');
+INSERT INTO foorescan values(5007,2,'abc.5007.2');
+INSERT INTO foorescan values(5008,2,'abc.5008.2');
+INSERT INTO foorescan values(5009,2,'abc.5009.2');
+INSERT INTO foorescan values(5000,3,'abc.5000.3');
+INSERT INTO foorescan values(5001,3,'abc.5001.3');
+INSERT INTO foorescan values(5002,3,'abc.5002.3');
+INSERT INTO foorescan values(5003,3,'abc.5003.3');
+INSERT INTO foorescan values(5004,3,'abc.5004.3');
+INSERT INTO foorescan values(5005,3,'abc.5005.3');
+INSERT INTO foorescan values(5006,3,'abc.5006.3');
+INSERT INTO foorescan values(5007,3,'abc.5007.3');
+INSERT INTO foorescan values(5008,3,'abc.5008.3');
+INSERT INTO foorescan values(5009,3,'abc.5009.3');
+INSERT INTO foorescan values(5000,4,'abc.5000.4');
+INSERT INTO foorescan values(5001,4,'abc.5001.4');
+INSERT INTO foorescan values(5002,4,'abc.5002.4');
+INSERT INTO foorescan values(5003,4,'abc.5003.4');
+INSERT INTO foorescan values(5004,4,'abc.5004.4');
+INSERT INTO foorescan values(5005,4,'abc.5005.4');
+INSERT INTO foorescan values(5006,4,'abc.5006.4');
+INSERT INTO foorescan values(5007,4,'abc.5007.4');
+INSERT INTO foorescan values(5008,4,'abc.5008.4');
+INSERT INTO foorescan values(5009,4,'abc.5009.4');
+INSERT INTO foorescan values(5000,5,'abc.5000.5');
+INSERT INTO foorescan values(5001,5,'abc.5001.5');
+INSERT INTO foorescan values(5002,5,'abc.5002.5');
+INSERT INTO foorescan values(5003,5,'abc.5003.5');
+INSERT INTO foorescan values(5004,5,'abc.5004.5');
+INSERT INTO foorescan values(5005,5,'abc.5005.5');
+INSERT INTO foorescan values(5006,5,'abc.5006.5');
+INSERT INTO foorescan values(5007,5,'abc.5007.5');
+INSERT INTO foorescan values(5008,5,'abc.5008.5');
+INSERT INTO foorescan values(5009,5,'abc.5009.5');
+CREATE FUNCTION foorescan(int,int) RETURNS setof foorescan AS 'SELECT * FROM foorescan WHERE fooid >= $1 and fooid < $2 ;' LANGUAGE SQL;
+--invokes ExecFunctionReScan
+SELECT * FROM foorescan f WHERE f.fooid IN (SELECT fooid FROM foorescan(5002,5004)) ORDER BY 1,2;
+ fooid | foosubid | fooname
+-------+----------+------------
+ 5002 | 1 | abc.5002.1
+ 5002 | 2 | abc.5002.2
+ 5002 | 3 | abc.5002.3
+ 5002 | 4 | abc.5002.4
+ 5002 | 5 | abc.5002.5
+ 5003 | 1 | abc.5003.1
+ 5003 | 2 | abc.5003.2
+ 5003 | 3 | abc.5003.3
+ 5003 | 4 | abc.5003.4
+ 5003 | 5 | abc.5003.5
+(10 rows)
+
+CREATE VIEW vw_foorescan AS SELECT * FROM foorescan(5002,5004);
+--invokes ExecFunctionReScan
+SELECT * FROM foorescan f WHERE f.fooid IN (SELECT fooid FROM vw_foorescan) ORDER BY 1,2;
+ fooid | foosubid | fooname
+-------+----------+------------
+ 5002 | 1 | abc.5002.1
+ 5002 | 2 | abc.5002.2
+ 5002 | 3 | abc.5002.3
+ 5002 | 4 | abc.5002.4
+ 5002 | 5 | abc.5002.5
+ 5003 | 1 | abc.5003.1
+ 5003 | 2 | abc.5003.2
+ 5003 | 3 | abc.5003.3
+ 5003 | 4 | abc.5003.4
+ 5003 | 5 | abc.5003.5
+(10 rows)
+
+CREATE TABLE barrescan (fooid int primary key);
+NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index 'barrescan_pkey' for table 'barrescan'
+INSERT INTO barrescan values(5003);
+INSERT INTO barrescan values(5004);
+INSERT INTO barrescan values(5005);
+INSERT INTO barrescan values(5006);
+INSERT INTO barrescan values(5007);
+INSERT INTO barrescan values(5008);
+CREATE FUNCTION foorescan(int) RETURNS setof foorescan AS 'SELECT * FROM foorescan WHERE fooid = $1;' LANGUAGE SQL;
+--invokes ExecFunctionReScan with chgParam != NULL
+SELECT f.* FROM barrescan b, foorescan f WHERE f.fooid = b.fooid AND b.fooid IN (SELECT fooid FROM foorescan(b.fooid)) ORDER BY 1,2;
+ fooid | foosubid | fooname
+-------+----------+------------
+ 5003 | 1 | abc.5003.1
+ 5003 | 2 | abc.5003.2
+ 5003 | 3 | abc.5003.3
+ 5003 | 4 | abc.5003.4
+ 5003 | 5 | abc.5003.5
+ 5004 | 1 | abc.5004.1
+ 5004 | 2 | abc.5004.2
+ 5004 | 3 | abc.5004.3
+ 5004 | 4 | abc.5004.4
+ 5004 | 5 | abc.5004.5
+ 5005 | 1 | abc.5005.1
+ 5005 | 2 | abc.5005.2
+ 5005 | 3 | abc.5005.3
+ 5005 | 4 | abc.5005.4
+ 5005 | 5 | abc.5005.5
+ 5006 | 1 | abc.5006.1
+ 5006 | 2 | abc.5006.2
+ 5006 | 3 | abc.5006.3
+ 5006 | 4 | abc.5006.4
+ 5006 | 5 | abc.5006.5
+ 5007 | 1 | abc.5007.1
+ 5007 | 2 | abc.5007.2
+ 5007 | 3 | abc.5007.3
+ 5007 | 4 | abc.5007.4
+ 5007 | 5 | abc.5007.5
+ 5008 | 1 | abc.5008.1
+ 5008 | 2 | abc.5008.2
+ 5008 | 3 | abc.5008.3
+ 5008 | 4 | abc.5008.4
+ 5008 | 5 | abc.5008.5
+(30 rows)
+
+SELECT b.fooid, max(f.foosubid) FROM barrescan b, foorescan f WHERE f.fooid = b.fooid AND b.fooid IN (SELECT fooid FROM foorescan(b.fooid)) GROUP BY b.fooid ORDER BY 1,2;
+ fooid | max
+-------+-----
+ 5003 | 5
+ 5004 | 5
+ 5005 | 5
+ 5006 | 5
+ 5007 | 5
+ 5008 | 5
+(6 rows)
+
+CREATE VIEW fooview1 AS SELECT f.* FROM barrescan b, foorescan f WHERE f.fooid = b.fooid AND b.fooid IN (SELECT fooid FROM foorescan(b.fooid)) ORDER BY 1,2;
+SELECT * FROM fooview1 AS fv WHERE fv.fooid = 5004;
+ fooid | foosubid | fooname
+-------+----------+------------
+ 5004 | 1 | abc.5004.1
+ 5004 | 2 | abc.5004.2
+ 5004 | 3 | abc.5004.3
+ 5004 | 4 | abc.5004.4
+ 5004 | 5 | abc.5004.5
+(5 rows)
+
+CREATE VIEW fooview2 AS SELECT b.fooid, max(f.foosubid) AS maxsubid FROM barrescan b, foorescan f WHERE f.fooid = b.fooid AND b.fooid IN (SELECT fooid FROM foorescan(b.fooid)) GROUP BY b.fooid ORDER BY 1,2;
+SELECT * FROM fooview2 AS fv WHERE fv.maxsubid = 5;
+ fooid | maxsubid
+-------+----------
+ 5003 | 5
+ 5004 | 5
+ 5005 | 5
+ 5006 | 5
+ 5007 | 5
+ 5008 | 5
+(6 rows)
+
+DROP TABLE foorescan;
+DROP FUNCTION foorescan(int,int);
+DROP VIEW vw_foorescan;
+DROP TABLE barrescan;
+DROP FUNCTION foorescan(int);
+DROP VIEW fooview1;
+DROP VIEW fooview2;
--- /dev/null
+CREATE TABLE foo2(fooid int, f2 int);
+INSERT INTO foo2 VALUES(1, 11);
+INSERT INTO foo2 VALUES(2, 22);
+INSERT INTO foo2 VALUES(1, 111);
+
+CREATE FUNCTION foot(int) returns setof foo2 as 'SELECT * FROM foo2 WHERE fooid = $1;' LANGUAGE SQL;
+
+-- supposed to fail with ERROR
+select * from foo2, foot(foo2.fooid) z where foo2.f2 = z.f2;
+
+-- function in subselect
+select * from foo2 where f2 in (select f2 from foot(foo2.fooid) z where z.fooid = foo2.fooid) ORDER BY 1,2;
+
+-- function in subselect
+select * from foo2 where f2 in (select f2 from foot(1) z where z.fooid = foo2.fooid) ORDER BY 1,2;
+
+-- function in subselect
+select * from foo2 where f2 in (select f2 from foot(foo2.fooid) z where z.fooid = 1) ORDER BY 1,2;
+
+-- nested functions
+select foot.fooid, foot.f2 from foot(sin(pi()/2)::int) ORDER BY 1,2;
+
+CREATE TABLE foo (fooid int, foosubid int, fooname text, primary key(fooid,foosubid));
+INSERT INTO foo VALUES(1,1,'Joe');
+INSERT INTO foo VALUES(1,2,'Ed');
+INSERT INTO foo VALUES(2,1,'Mary');
+
+-- sql, proretset = f, prorettype = b
+CREATE FUNCTION getfoo(int) RETURNS int AS 'SELECT $1;' LANGUAGE SQL;
+SELECT * FROM getfoo(1) AS t1;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+
+-- sql, proretset = t, prorettype = b
+DROP FUNCTION getfoo(int);
+CREATE FUNCTION getfoo(int) RETURNS setof int AS 'SELECT fooid FROM foo WHERE fooid = $1;' LANGUAGE SQL;
+SELECT * FROM getfoo(1) AS t1;
+DROP VIEW vw_getfoo;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+
+-- sql, proretset = t, prorettype = b
+DROP FUNCTION getfoo(int);
+CREATE FUNCTION getfoo(int) RETURNS setof text AS 'SELECT fooname FROM foo WHERE fooid = $1;' LANGUAGE SQL;
+SELECT * FROM getfoo(1) AS t1;
+DROP VIEW vw_getfoo;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+
+-- sql, proretset = f, prorettype = c
+DROP FUNCTION getfoo(int);
+CREATE FUNCTION getfoo(int) RETURNS foo AS 'SELECT * FROM foo WHERE fooid = $1;' LANGUAGE SQL;
+SELECT * FROM getfoo(1) AS t1;
+DROP VIEW vw_getfoo;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+
+-- sql, proretset = t, prorettype = c
+DROP FUNCTION getfoo(int);
+CREATE FUNCTION getfoo(int) RETURNS setof foo AS 'SELECT * FROM foo WHERE fooid = $1;' LANGUAGE SQL;
+SELECT * FROM getfoo(1) AS t1;
+DROP VIEW vw_getfoo;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+
+-- plpgsql, proretset = f, prorettype = b
+DROP FUNCTION getfoo(int);
+CREATE FUNCTION getfoo(int) RETURNS int AS 'DECLARE fooint int; BEGIN SELECT fooid into fooint FROM foo WHERE fooid = $1; RETURN fooint; END;' LANGUAGE 'plpgsql';
+SELECT * FROM getfoo(1) AS t1;
+DROP VIEW vw_getfoo;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+
+-- plpgsql, proretset = f, prorettype = c
+DROP FUNCTION getfoo(int);
+CREATE FUNCTION getfoo(int) RETURNS foo AS 'DECLARE footup foo%ROWTYPE; BEGIN SELECT * into footup FROM foo WHERE fooid = $1; RETURN footup; END;' LANGUAGE 'plpgsql';
+SELECT * FROM getfoo(1) AS t1;
+DROP VIEW vw_getfoo;
+CREATE VIEW vw_getfoo AS SELECT * FROM getfoo(1);
+SELECT * FROM vw_getfoo;
+
+DROP TABLE foo2;
+DROP FUNCTION foot(int);
+DROP TABLE foo;
+DROP FUNCTION getfoo(int);
+DROP VIEW vw_getfoo;
+
+-- Rescan tests --
+CREATE TABLE foorescan (fooid int, foosubid int, fooname text, primary key(fooid,foosubid));
+INSERT INTO foorescan values(5000,1,'abc.5000.1');
+INSERT INTO foorescan values(5001,1,'abc.5001.1');
+INSERT INTO foorescan values(5002,1,'abc.5002.1');
+INSERT INTO foorescan values(5003,1,'abc.5003.1');
+INSERT INTO foorescan values(5004,1,'abc.5004.1');
+INSERT INTO foorescan values(5005,1,'abc.5005.1');
+INSERT INTO foorescan values(5006,1,'abc.5006.1');
+INSERT INTO foorescan values(5007,1,'abc.5007.1');
+INSERT INTO foorescan values(5008,1,'abc.5008.1');
+INSERT INTO foorescan values(5009,1,'abc.5009.1');
+
+INSERT INTO foorescan values(5000,2,'abc.5000.2');
+INSERT INTO foorescan values(5001,2,'abc.5001.2');
+INSERT INTO foorescan values(5002,2,'abc.5002.2');
+INSERT INTO foorescan values(5003,2,'abc.5003.2');
+INSERT INTO foorescan values(5004,2,'abc.5004.2');
+INSERT INTO foorescan values(5005,2,'abc.5005.2');
+INSERT INTO foorescan values(5006,2,'abc.5006.2');
+INSERT INTO foorescan values(5007,2,'abc.5007.2');
+INSERT INTO foorescan values(5008,2,'abc.5008.2');
+INSERT INTO foorescan values(5009,2,'abc.5009.2');
+
+INSERT INTO foorescan values(5000,3,'abc.5000.3');
+INSERT INTO foorescan values(5001,3,'abc.5001.3');
+INSERT INTO foorescan values(5002,3,'abc.5002.3');
+INSERT INTO foorescan values(5003,3,'abc.5003.3');
+INSERT INTO foorescan values(5004,3,'abc.5004.3');
+INSERT INTO foorescan values(5005,3,'abc.5005.3');
+INSERT INTO foorescan values(5006,3,'abc.5006.3');
+INSERT INTO foorescan values(5007,3,'abc.5007.3');
+INSERT INTO foorescan values(5008,3,'abc.5008.3');
+INSERT INTO foorescan values(5009,3,'abc.5009.3');
+
+INSERT INTO foorescan values(5000,4,'abc.5000.4');
+INSERT INTO foorescan values(5001,4,'abc.5001.4');
+INSERT INTO foorescan values(5002,4,'abc.5002.4');
+INSERT INTO foorescan values(5003,4,'abc.5003.4');
+INSERT INTO foorescan values(5004,4,'abc.5004.4');
+INSERT INTO foorescan values(5005,4,'abc.5005.4');
+INSERT INTO foorescan values(5006,4,'abc.5006.4');
+INSERT INTO foorescan values(5007,4,'abc.5007.4');
+INSERT INTO foorescan values(5008,4,'abc.5008.4');
+INSERT INTO foorescan values(5009,4,'abc.5009.4');
+
+INSERT INTO foorescan values(5000,5,'abc.5000.5');
+INSERT INTO foorescan values(5001,5,'abc.5001.5');
+INSERT INTO foorescan values(5002,5,'abc.5002.5');
+INSERT INTO foorescan values(5003,5,'abc.5003.5');
+INSERT INTO foorescan values(5004,5,'abc.5004.5');
+INSERT INTO foorescan values(5005,5,'abc.5005.5');
+INSERT INTO foorescan values(5006,5,'abc.5006.5');
+INSERT INTO foorescan values(5007,5,'abc.5007.5');
+INSERT INTO foorescan values(5008,5,'abc.5008.5');
+INSERT INTO foorescan values(5009,5,'abc.5009.5');
+
+CREATE FUNCTION foorescan(int,int) RETURNS setof foorescan AS 'SELECT * FROM foorescan WHERE fooid >= $1 and fooid < $2 ;' LANGUAGE SQL;
+
+--invokes ExecFunctionReScan
+SELECT * FROM foorescan f WHERE f.fooid IN (SELECT fooid FROM foorescan(5002,5004)) ORDER BY 1,2;
+
+CREATE VIEW vw_foorescan AS SELECT * FROM foorescan(5002,5004);
+
+--invokes ExecFunctionReScan
+SELECT * FROM foorescan f WHERE f.fooid IN (SELECT fooid FROM vw_foorescan) ORDER BY 1,2;
+
+CREATE TABLE barrescan (fooid int primary key);
+INSERT INTO barrescan values(5003);
+INSERT INTO barrescan values(5004);
+INSERT INTO barrescan values(5005);
+INSERT INTO barrescan values(5006);
+INSERT INTO barrescan values(5007);
+INSERT INTO barrescan values(5008);
+
+CREATE FUNCTION foorescan(int) RETURNS setof foorescan AS 'SELECT * FROM foorescan WHERE fooid = $1;' LANGUAGE SQL;
+
+--invokes ExecFunctionReScan with chgParam != NULL
+SELECT f.* FROM barrescan b, foorescan f WHERE f.fooid = b.fooid AND b.fooid IN (SELECT fooid FROM foorescan(b.fooid)) ORDER BY 1,2;
+SELECT b.fooid, max(f.foosubid) FROM barrescan b, foorescan f WHERE f.fooid = b.fooid AND b.fooid IN (SELECT fooid FROM foorescan(b.fooid)) GROUP BY b.fooid ORDER BY 1,2;
+
+CREATE VIEW fooview1 AS SELECT f.* FROM barrescan b, foorescan f WHERE f.fooid = b.fooid AND b.fooid IN (SELECT fooid FROM foorescan(b.fooid)) ORDER BY 1,2;
+SELECT * FROM fooview1 AS fv WHERE fv.fooid = 5004;
+
+CREATE VIEW fooview2 AS SELECT b.fooid, max(f.foosubid) AS maxsubid FROM barrescan b, foorescan f WHERE f.fooid = b.fooid AND b.fooid IN (SELECT fooid FROM foorescan(b.fooid)) GROUP BY b.fooid ORDER BY 1,2;
+SELECT * FROM fooview2 AS fv WHERE fv.maxsubid = 5;
+
+DROP TABLE foorescan;
+DROP FUNCTION foorescan(int,int);
+DROP VIEW vw_foorescan;
+DROP TABLE barrescan;
+DROP FUNCTION foorescan(int);
+DROP VIEW fooview1;
+DROP VIEW fooview2;