LOAD 'pg_hint_plan';
SET pg_hint_plan.enable_hint TO on;
SET pg_hint_plan.debug_print TO on;
SET client_min_messages TO LOG;
SET jit = off;
SET search_path TO public;
SET enable_self_join_elimination = off;

SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

----
---- No. R-1-1 specified pattern of the object name
----

-- No. R-1-1-1
SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-1-2
SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.t1 t_1, s1.t2 t_2 WHERE t_1.c1 = t_2.c1;
');

-- No. R-1-1-3
SELECT explain_filter('
/*+Rows(t_1 t_2 #1)*/
EXPLAIN SELECT * FROM s1.t1 t_1, s1.t2 t_2 WHERE t_1.c1 = t_2.c1;
');

----
---- No. R-1-2 specified schema name in the hint option
----

-- No. R-1-2-1
SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-2-2
SELECT explain_filter('
/*+Rows(s1.t1 s1.t2 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

----
---- No. R-1-3 table doesn't exist in the hint option
----

-- No. R-1-3-1
SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-3-2
SELECT explain_filter('
/*+Rows(t3 t4 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

----
---- No. R-1-4 conflict table name
----

-- No. R-1-4-1
SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');


-- No. R-1-4-2
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, s2.t1 WHERE s1.t1.c1 = s2.t1.c1;
');

SELECT explain_filter('
/*+Rows(t1 t1 #1)*/
EXPLAIN SELECT * FROM s1.t1, s2.t1 WHERE s1.t1.c1 = s2.t1.c1;
');

SELECT explain_filter('
/*+Rows(s1.t1 s2.t1 #1)*/
EXPLAIN SELECT * FROM s1.t1, s2.t1 WHERE s1.t1.c1 = s2.t1.c1;
');

SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, s2.t1 s2t1 WHERE s1.t1.c1 = s2t1.c1;
');

SELECT explain_filter('
/*+Rows(t1 s2t1 #1)*/
EXPLAIN SELECT * FROM s1.t1, s2.t1 s2t1 WHERE s1.t1.c1 = s2t1.c1;
');

-- No. R-1-4-3
SELECT explain_filter('
EXPLAIN SELECT *, (SELECT max(t1.c1) FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1) FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT *, (SELECT max(t1.c1) FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1) FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(st1 st2 #1)Rows(t1 t2 #1)*/
EXPLAIN SELECT *, (SELECT max(st1.c1) FROM s1.t1 st1, s1.t2 st2 WHERE st1.c1 = st2.c1) FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

----
---- No. R-1-5 conflict table name
----

-- No. R-1-5-1
SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-5-2
SELECT explain_filter('
/*+Rows(t1 t1 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-5-3
SELECT explain_filter('
/*+(t1 t1)(t2 t2)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, s1.t2, s1.t3 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1;
');

SELECT explain_filter('
/*+(t1 t2 t1 t2)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2, s1.t3, s1.t4 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1;
');

----
---- No. R-1-6 object type for the hint
----

-- No. R-1-6-1
SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-6-2
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.p1 t1, s1.p1 t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.p1 t1, s1.p1 t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-6-3
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.ul1 t1, s1.ul1 t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.ul1 t1, s1.ul1 t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-6-4
CREATE TEMP TABLE tm1 (LIKE s1.t1 INCLUDING ALL);
SELECT explain_filter('
EXPLAIN SELECT * FROM tm1 t1, tm1 t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM tm1 t1, tm1 t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-6-5
CREATE TEMP TABLE t_pg_class AS SELECT * from pg_class LIMIT 100;
SELECT explain_filter('
EXPLAIN SELECT * FROM t_pg_class t1, t_pg_class t2 WHERE t1.oid = t2.oid;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM t_pg_class t1, t_pg_class t2 WHERE t1.oid = t2.oid;
');


-- No. R-1-6-6
-- refer ut-fdw.sql

-- No. R-1-6-7
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.f1() t1, s1.f1() t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.f1() t1, s1.f1() t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-6-8
SELECT explain_filter('
EXPLAIN SELECT * FROM (VALUES(1,1,1,''1''), (2,2,2,''2''), (3,3,3,''3'')) AS t1 (c1, c2, c3, c4),  s1.t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM (VALUES(1,1,1,''1''), (2,2,2,''2''), (3,3,3,''3'')) AS t1 (c1, c2, c3, c4),  s1.t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(*VALUES* t2 #1)*/
EXPLAIN SELECT * FROM (VALUES(1,1,1,''1''), (2,2,2,''2''), (3,3,3,''3'')) AS t1 (c1, c2, c3, c4),  s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-6-9
SELECT explain_filter('
EXPLAIN WITH c1(c1) AS (SELECT max(t1.c1) FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1) SELECT * FROM s1.t1, c1 WHERE t1.c1 = c1.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)Rows(t1 c1 +1)*/
EXPLAIN WITH c1(c1) AS (SELECT max(t1.c1) FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1) SELECT * FROM s1.t1, c1 WHERE t1.c1 = c1.c1;
');

-- No. R-1-6-10
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.v1 t1, s1.v1 t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.v1 t1, s1.v1 t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(v1t1 v1t1_ #1)*/
EXPLAIN SELECT * FROM s1.v1 t1, s1.v1_ t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-6-11
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1 AND t1.c1 = (SELECT max(st1.c1) FROM s1.t1 st1, s1.t2 st2 WHERE st1.c1 = st2.c1);
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)Rows(st1 st2 #1)*/
EXPLAIN (COSTS true) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1 AND t1.c1 = (SELECT max(st1.c1) FROM s1.t1 st1, s1.t2 st2 WHERE st1.c1 = st2.c1);
');
--
-- There are cases where difference in the measured value and predicted value
-- depending upon the version of PostgreSQL
--

SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, (SELECT t2.c1 FROM s1.t2) st2 WHERE t1.c1 = st2.c1;
');

SELECT explain_filter('
/*+Rows(t1 st2 #1)*/
EXPLAIN SELECT * FROM s1.t1, (SELECT t2.c1 FROM s1.t2) st2 WHERE t1.c1 = st2.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.t1, (SELECT t2.c1 FROM s1.t2) st2 WHERE t1.c1 = st2.c1;
');


----
---- No. R-1-7 specified number of conditions
----

-- No. R-1-7-1
SELECT explain_filter('
/*+Rows(t1 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-7-2
SELECT explain_filter('
/*+Rows(t1 t2 1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-1-7-3
SELECT explain_filter('
/*+Rows(t1 t2 #notrows)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

----
---- No. R-2-1 some complexity query blocks
----

-- No. R-2-1-1
SELECT explain_filter('
/*+
Leading(bmt1 bmt2 bmt3 bmt4)
Leading(b1t2 b1t3 b1t4 b1t1)
Leading(b2t3 b2t4 b2t1 b2t2)
MergeJoin(bmt1 bmt2)HashJoin(bmt1 bmt2 bmt3)NestLoop(bmt1 bmt2 bmt3 bmt4)
MergeJoin(b1t2 b1t3)HashJoin(b1t2 b1t3 b1t4)NestLoop(b1t2 b1t3 b1t4 b1t1)
MergeJoin(b2t3 b2t4)HashJoin(b2t3 b2t4 b2t1)NestLoop(b2t3 b2t4 b2t1 b2t2)
*/
EXPLAIN
SELECT max(bmt1.c1), (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
), (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
)
                    FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
;');

SELECT explain_filter('
/*+
Leading(bmt1 bmt2 bmt3 bmt4)
Leading(b1t2 b1t3 b1t4 b1t1)
Leading(b2t3 b2t4 b2t1 b2t2)
MergeJoin(bmt1 bmt2)HashJoin(bmt1 bmt2 bmt3)NestLoop(bmt1 bmt2 bmt3 bmt4)
MergeJoin(b1t2 b1t3)HashJoin(b1t2 b1t3 b1t4)NestLoop(b1t2 b1t3 b1t4 b1t1)
MergeJoin(b2t3 b2t4)HashJoin(b2t3 b2t4 b2t1)NestLoop(b2t3 b2t4 b2t1 b2t2)
Rows(bmt1 bmt2 #1)Rows(bmt1 bmt2 bmt3 #1)Rows(bmt1 bmt2 bmt3 bmt4 #1)
Rows(b1t2 b1t3 #1)Rows(b1t2 b1t3 b1t4 #1)Rows(b1t2 b1t3 b1t4 b1t1 #1)
Rows(b2t3 b2t4 #1)Rows(b2t3 b2t4 b2t1 #1)Rows(b2t3 b2t4 b2t1 b2t2 #1)
*/
EXPLAIN
SELECT max(bmt1.c1), (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
), (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1)
                    FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
;
');

-- No. R-2-1-2
SELECT explain_filter('
/*+
Leading(bmt1 bmt2 bmt3 bmt4)
Leading(b1t2 b1t3 b1t4 b1t1)
Leading(b2t3 b2t4 b2t1 b2t2)
Leading(b3t4 b3t1 b3t2 b3t3)
MergeJoin(bmt1 bmt2)HashJoin(bmt1 bmt2 bmt3)NestLoop(bmt1 bmt2 bmt3 bmt4)
MergeJoin(b1t2 b1t3)HashJoin(b1t2 b1t3 b1t4)NestLoop(b1t2 b1t3 b1t4 b1t1)
MergeJoin(b2t3 b2t4)HashJoin(b2t3 b2t4 b2t1)NestLoop(b2t3 b2t4 b2t1 b2t2)
MergeJoin(b3t4 b3t1)HashJoin(b3t4 b3t1 b3t2)NestLoop(b3t1 b3t2 b3t3 b3t4)
*/
EXPLAIN
SELECT max(bmt1.c1), (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
), (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
), (
SELECT max(b3t1.c1) FROM s1.t1 b3t1, s1.t2 b3t2, s1.t3 b3t3, s1.t4 b3t4 WHERE b3t1.c1 = b3t2.c1 AND b3t1.c1 = b3t3.c1 AND b3t1.c1 = b3t4.c1
)
                    FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
;
');

SELECT explain_filter('
/*+
Leading(bmt1 bmt2 bmt3 bmt4)
Leading(b1t2 b1t3 b1t4 b1t1)
Leading(b2t3 b2t4 b2t1 b2t2)
Leading(b3t4 b3t1 b3t2 b3t3)
MergeJoin(bmt1 bmt2)HashJoin(bmt1 bmt2 bmt3)NestLoop(bmt1 bmt2 bmt3 bmt4)
MergeJoin(b1t2 b1t3)HashJoin(b1t2 b1t3 b1t4)NestLoop(b1t2 b1t3 b1t4 b1t1)
MergeJoin(b2t3 b2t4)HashJoin(b2t3 b2t4 b2t1)NestLoop(b2t3 b2t4 b2t1 b2t2)
MergeJoin(b3t4 b3t1)HashJoin(b3t4 b3t1 b3t2)NestLoop(b3t1 b3t2 b3t3 b3t4)
Rows(bmt1 bmt2 #1)Rows(bmt1 bmt2 bmt3 #1)Rows(bmt1 bmt2 bmt3 bmt4 #1)
Rows(b1t2 b1t3 #1)Rows(b1t2 b1t3 b1t4 #1)Rows(b1t2 b1t3 b1t4 b1t1 #1)
Rows(b2t3 b2t4 #1)Rows(b2t3 b2t4 b2t1 #1)Rows(b2t3 b2t4 b2t1 b2t2 #1)
Rows(b3t4 b3t1 #1)Rows(b3t4 b3t1 b3t2 #1)Rows(b3t1 b3t2 b3t3 b3t4 #1)
*/
EXPLAIN
SELECT max(bmt1.c1), (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
), (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
), (
SELECT max(b3t1.c1) FROM s1.t1 b3t1, s1.t2 b3t2, s1.t3 b3t3, s1.t4 b3t4 WHERE b3t1.c1 = b3t2.c1 AND b3t1.c1 = b3t3.c1 AND b3t1.c1 = b3t4.c1
)
                    FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
;');

-- No. R-2-1-3
SELECT explain_filter('
/*+
Leading(bmt4 bmt3 bmt2 bmt1)
*/
EXPLAIN SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, (SELECT ctid, * FROM s1.t3 bmt3) sbmt3, (SELECT ctid, * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = sbmt3.c1 AND bmt1.c1 = sbmt4.c1;
');

SELECT explain_filter('
/*+
Leading(bmt4 bmt3 bmt2 bmt1)
Rows(bmt4 bmt3 #1)Rows(bmt4 bmt3 bmt2 #1)Rows(bmt1 bmt2 bmt3 bmt4 #1)
*/
EXPLAIN SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, (SELECT ctid, * FROM s1.t3 bmt3) sbmt3, (SELECT ctid, * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = sbmt3.c1 AND bmt1.c1 = sbmt4.c1;
');

-- No. R-2-1-4
SELECT explain_filter('
/*+
Leading(bmt4 bmt3 bmt2 bmt1)
*/
EXPLAIN SELECT max(bmt1.c1) FROM s1.t1 bmt1, (SELECT ctid, * FROM s1.t2 bmt2) sbmt2, (SELECT ctid, * FROM s1.t3 bmt3) sbmt3, (SELECT ctid, * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = sbmt2.c1 AND bmt1.c1 = sbmt3.c1 AND bmt1.c1 = sbmt4.c1;
');

SELECT explain_filter('
/*+
Leading(bmt4 bmt3 bmt2 bmt1)
Rows(bmt4 bmt3 #1)Rows(bmt4 bmt3 bmt2 #1)Rows(bmt1 bmt2 bmt3 bmt4 #1)
*/
EXPLAIN SELECT max(bmt1.c1) FROM s1.t1 bmt1, (SELECT ctid, * FROM s1.t2 bmt2) sbmt2, (SELECT ctid, * FROM s1.t3 bmt3) sbmt3, (SELECT ctid, * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = sbmt2.c1 AND bmt1.c1 = sbmt3.c1 AND bmt1.c1 = sbmt4.c1;
');

-- No. R-2-1-5
SELECT explain_filter('
/*+
Leading(bmt1 bmt2 bmt3 bmt4)
Leading(b1t2 b1t3 b1t4 b1t1)
Leading(b2t3 b2t4 b2t1 b2t2)
MergeJoin(bmt1 bmt2)HashJoin(bmt1 bmt2 bmt3)NestLoop(bmt1 bmt2 bmt3 bmt4)
MergeJoin(b1t2 b1t3)HashJoin(b1t2 b1t3 b1t4)NestLoop(b1t2 b1t3 b1t4 b1t1)
MergeJoin(b2t3 b2t4)HashJoin(b2t3 b2t4 b2t1)NestLoop(b2t3 b2t4 b2t1 b2t2)
*/
EXPLAIN
SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
AND bmt1.c1 <> (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
) AND bmt1.c1 <> (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
);
');

SELECT explain_filter('
/*+
Leading(bmt1 bmt2 bmt3 bmt4)
Leading(b1t2 b1t3 b1t4 b1t1)
Leading(b2t3 b2t4 b2t1 b2t2)
MergeJoin(bmt1 bmt2)HashJoin(bmt1 bmt2 bmt3)NestLoop(bmt1 bmt2 bmt3 bmt4)
MergeJoin(b1t2 b1t3)HashJoin(b1t2 b1t3 b1t4)NestLoop(b1t2 b1t3 b1t4 b1t1)
MergeJoin(b2t3 b2t4)HashJoin(b2t3 b2t4 b2t1)NestLoop(b2t3 b2t4 b2t1 b2t2)
Rows(bmt1 bmt2 #1)Rows(bmt1 bmt2 bmt3 #1)Rows(bmt1 bmt2 bmt3 bmt4 #1)
Rows(b1t2 b1t3 #1)Rows(b1t2 b1t3 b1t4 #1)Rows(b1t2 b1t3 b1t4 b1t1 #1)
Rows(b2t3 b2t4 #1)Rows(b2t3 b2t4 b2t1 #1)Rows(b2t3 b2t4 b2t1 b2t2 #1)
*/
EXPLAIN
SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
AND bmt1.c1 <> (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
) AND bmt1.c1 <> (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
)
;');

-- No. R-2-1-6
SELECT explain_filter('
/*+
Leading(bmt1 bmt2 bmt3 bmt4)
Leading(b1t2 b1t3 b1t4 b1t1)
Leading(b2t3 b2t4 b2t1 b2t2)
Leading(b3t4 b3t1 b3t2 b3t3)
MergeJoin(bmt1 bmt2)HashJoin(bmt1 bmt2 bmt3)NestLoop(bmt1 bmt2 bmt3 bmt4)
MergeJoin(b1t2 b1t3)HashJoin(b1t2 b1t3 b1t4)NestLoop(b1t2 b1t3 b1t4 b1t1)
MergeJoin(b2t3 b2t4)HashJoin(b2t3 b2t4 b2t1)NestLoop(b2t3 b2t4 b2t1 b2t2)
MergeJoin(b3t4 b3t1)HashJoin(b3t4 b3t1 b3t2)NestLoop(b3t1 b3t2 b3t3 b3t4)
*/
EXPLAIN
SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
  AND bmt1.c1 <> (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
) AND bmt1.c1 <> (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
) AND bmt1.c1 <> (
SELECT max(b3t1.c1) FROM s1.t1 b3t1, s1.t2 b3t2, s1.t3 b3t3, s1.t4 b3t4 WHERE b3t1.c1 = b3t2.c1 AND b3t1.c1 = b3t3.c1 AND b3t1.c1 = b3t4.c1
)
;');

SELECT explain_filter('
/*+
Leading(bmt1 bmt2 bmt3 bmt4)
Leading(b1t2 b1t3 b1t4 b1t1)
Leading(b2t3 b2t4 b2t1 b2t2)
Leading(b3t4 b3t1 b3t2 b3t3)
MergeJoin(bmt1 bmt2)HashJoin(bmt1 bmt2 bmt3)NestLoop(bmt1 bmt2 bmt3 bmt4)
MergeJoin(b1t2 b1t3)HashJoin(b1t2 b1t3 b1t4)NestLoop(b1t2 b1t3 b1t4 b1t1)
MergeJoin(b2t3 b2t4)HashJoin(b2t3 b2t4 b2t1)NestLoop(b2t3 b2t4 b2t1 b2t2)
MergeJoin(b3t4 b3t1)HashJoin(b3t4 b3t1 b3t2)NestLoop(b3t1 b3t2 b3t3 b3t4)
Rows(bmt1 bmt2 #1)Rows(bmt1 bmt2 bmt3 #1)Rows(bmt1 bmt2 bmt3 bmt4 #1)
Rows(b1t2 b1t3 #1)Rows(b1t2 b1t3 b1t4 #1)Rows(b1t2 b1t3 b1t4 b1t1 #1)
Rows(b2t3 b2t4 #1)Rows(b2t3 b2t4 b2t1 #1)Rows(b2t3 b2t4 b2t1 b2t2 #1)
Rows(b3t4 b3t1 #1)Rows(b3t4 b3t1 b3t2 #1)Rows(b3t1 b3t2 b3t3 b3t4 #1)
*/
EXPLAIN
SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
  AND bmt1.c1 <> (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
) AND bmt1.c1 <> (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
) AND bmt1.c1 <> (
SELECT max(b3t1.c1) FROM s1.t1 b3t1, s1.t2 b3t2, s1.t3 b3t3, s1.t4 b3t4 WHERE b3t1.c1 = b3t2.c1 AND b3t1.c1 = b3t3.c1 AND b3t1.c1 = b3t4.c1
)
;');

-- No. R-2-1-7
SELECT explain_filter('
/*+
Leading(c2 c1 bmt1 bmt2 bmt3 bmt4)
Leading(b1t2 b1t3 b1t4 b1t1)
Leading(b2t3 b2t4 b2t1 b2t2)
MergeJoin(c2 c1)HashJoin(c2 c1 bmt1)NestLoop(c2 c1 bmt1 bmt2)MergeJoin(c2 c1 bmt1 bmt2 bmt3)HashJoin(c2 c1 bmt1 bmt2 bmt3 bmt4)
MergeJoin(b1t2 b1t3)HashJoin(b1t2 b1t3 b1t4)NestLoop(b1t2 b1t3 b1t4 b1t1)
MergeJoin(b2t3 b2t4)HashJoin(b2t3 b2t4 b2t1)NestLoop(b2t3 b2t4 b2t1 b2t2)
*/
EXPLAIN
WITH c1 (c1) AS (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
)
, c2 (c1) AS (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
)
SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4
, c1, c2
                                                                        WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
AND bmt1.c1 = c1.c1
AND bmt1.c1 = c2.c1
;');

SELECT explain_filter('
/*+
Leading(c2 c1 bmt1 bmt2 bmt3 bmt4)
Leading(b1t2 b1t3 b1t4 b1t1)
Leading(b2t3 b2t4 b2t1 b2t2)
MergeJoin(c2 c1)HashJoin(c2 c1 bmt1)NestLoop(c2 c1 bmt1 bmt2)MergeJoin(c2 c1 bmt1 bmt2 bmt3)HashJoin(c2 c1 bmt1 bmt2 bmt3 bmt4)
MergeJoin(b1t2 b1t3)HashJoin(b1t2 b1t3 b1t4)NestLoop(b1t2 b1t3 b1t4 b1t1)
MergeJoin(b2t3 b2t4)HashJoin(b2t3 b2t4 b2t1)NestLoop(b2t3 b2t4 b2t1 b2t2)
Rows(c2 c1 #1)Rows(c2 c1 bmt1 #1)Rows(c2 c1 bmt1 bmt2 #1)Rows(c2 c1 bmt1 bmt2 bmt3 #1)Rows(c2 c1 bmt1 bmt2 bmt3 bmt4 #1)
Rows(b1t2 b1t3 #1)Rows(b1t2 b1t3 b1t4 #1)Rows(b1t2 b1t3 b1t4 b1t1 #1)
Rows(b2t3 b2t4 #1)Rows(b2t3 b2t4 b2t1 #1)Rows(b2t3 b2t4 b2t1 b2t2 #1)
*/
EXPLAIN
WITH c1 (c1) AS (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
)
, c2 (c1) AS (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
)
SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4
, c1, c2
                                                                        WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
AND bmt1.c1 = c1.c1
AND bmt1.c1 = c2.c1;
');

-- No. R-2-1-8
SELECT explain_filter('
/*+
Leading(c3 c2 c1 bmt1 bmt2 bmt3 bmt4)
Leading(b1t2 b1t3 b1t4 b1t1)
Leading(b2t3 b2t4 b2t1 b2t2)
Leading(b3t4 b3t1 b3t2 b3t3)
MergeJoin(c3 c2)HashJoin(c3 c2 c1)NestLoop(c3 c2 c1 bmt1)MergeJoin(c3 c2 c1 bmt1 bmt2)HashJoin(c3 c2 c1 bmt1 bmt2 bmt3)NestLoop(c3 c2 c1 bmt1 bmt2 bmt3 bmt4)
MergeJoin(b1t2 b1t3)HashJoin(b1t2 b1t3 b1t4)NestLoop(b1t2 b1t3 b1t4 b1t1)
MergeJoin(b2t3 b2t4)HashJoin(b2t3 b2t4 b2t1)NestLoop(b2t3 b2t4 b2t1 b2t2)
MergeJoin(b3t4 b3t1)HashJoin(b3t4 b3t1 b3t2)NestLoop(b3t1 b3t2 b3t3 b3t4)
*/
EXPLAIN
WITH c1 (c1) AS (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
)
, c2 (c1) AS (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
)
, c3 (c1) AS (
SELECT max(b3t1.c1) FROM s1.t1 b3t1, s1.t2 b3t2, s1.t3 b3t3, s1.t4 b3t4 WHERE b3t1.c1 = b3t2.c1 AND b3t1.c1 = b3t3.c1 AND b3t1.c1 = b3t4.c1
)
SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4
, c1, c2, c3
                                                                        WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
AND bmt1.c1 = c1.c1
AND bmt1.c1 = c2.c1
AND bmt1.c1 = c3.c1;
');

SELECT explain_filter('
/*+
Leading(c3 c2 c1 bmt1 bmt2 bmt3 bmt4)
Leading(b1t2 b1t3 b1t4 b1t1)
Leading(b2t3 b2t4 b2t1 b2t2)
Leading(b3t4 b3t1 b3t2 b3t3)
MergeJoin(c3 c2)HashJoin(c3 c2 c1)NestLoop(c3 c2 c1 bmt1)MergeJoin(c3 c2 c1 bmt1 bmt2)HashJoin(c3 c2 c1 bmt1 bmt2 bmt3)NestLoop(c3 c2 c1 bmt1 bmt2 bmt3 bmt4)
MergeJoin(b1t2 b1t3)HashJoin(b1t2 b1t3 b1t4)NestLoop(b1t2 b1t3 b1t4 b1t1)
MergeJoin(b2t3 b2t4)HashJoin(b2t3 b2t4 b2t1)NestLoop(b2t3 b2t4 b2t1 b2t2)
MergeJoin(b3t4 b3t1)HashJoin(b3t4 b3t1 b3t2)NestLoop(b3t1 b3t2 b3t3 b3t4)
Rows(c3 c2 #1)Rows(c3 c2 c1 #1)Rows(c3 c2 c1 bmt1 #1)Rows(c3 c2 c1 bmt1 bmt2 #1)Rows(c3 c2 c1 bmt1 bmt2 bmt3 #1)Rows(c3 c2 c1 bmt1 bmt2 bmt3 bmt4 #1)
Rows(b1t2 b1t3 #1)Rows(b1t2 b1t3 b1t4 #1)Rows(b1t2 b1t3 b1t4 b1t1 #1)
Rows(b2t3 b2t4 #1)Rows(b2t3 b2t4 b2t1 #1)Rows(b2t3 b2t4 b2t1 b2t2 #1)
Rows(b3t4 b3t1 #1)Rows(b3t4 b3t1 b3t2 #1)Rows(b3t1 b3t2 b3t3 b3t4 #1)
*/
EXPLAIN
WITH c1 (c1) AS (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
)
, c2 (c1) AS (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
)
, c3 (c1) AS (
SELECT max(b3t1.c1) FROM s1.t1 b3t1, s1.t2 b3t2, s1.t3 b3t3, s1.t4 b3t4 WHERE b3t1.c1 = b3t2.c1 AND b3t1.c1 = b3t3.c1 AND b3t1.c1 = b3t4.c1
)
SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4
, c1, c2, c3
                                                                        WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
AND bmt1.c1 = c1.c1
AND bmt1.c1 = c2.c1
AND bmt1.c1 = c3.c1;
');

----
---- No. R-2-2 the number of the tables per quiry block
----
-- No. R-2-2-1
SELECT explain_filter('
/*+
Leading(c1 bmt1)
*/
EXPLAIN
WITH c1 (c1) AS (
SELECT b1t1.c1 FROM s1.t1 b1t1 WHERE b1t1.c1 = 1
)
SELECT bmt1.c1, (
SELECT b2t1.c1 FROM s1.t1 b2t1 WHERE b2t1.c1 = 1
)
                    FROM s1.t1 bmt1, c1 WHERE bmt1.c1 = 1
AND bmt1.c1 = c1.c1
AND bmt1.c1 <> (
SELECT b3t1.c1 FROM s1.t1 b3t1 WHERE b3t1.c1 = 1
);
');

SELECT explain_filter('
/*+
Leading(c1 bmt1)
Rows(bmt1 c1 #1)
Rows(b1t1 c1 #1)
Rows(b2t1 c1 #1)
Rows(b3t1 c1 #1)
*/
EXPLAIN
WITH c1 (c1) AS (
SELECT b1t1.c1 FROM s1.t1 b1t1 WHERE b1t1.c1 = 1
)
SELECT bmt1.c1, (
SELECT b2t1.c1 FROM s1.t1 b2t1 WHERE b2t1.c1 = 1
)
                    FROM s1.t1 bmt1, c1 WHERE bmt1.c1 = 1
AND bmt1.c1 = c1.c1
AND bmt1.c1 <> (
SELECT b3t1.c1 FROM s1.t1 b3t1 WHERE b3t1.c1 = 1
);
');

-- No. R-2-2-2
SELECT explain_filter('
/*+
Leading(c1 bmt2 bmt1)
Leading(b1t2 b1t1)
Leading(b2t2 b2t1)
Leading(b3t2 b3t1)
MergeJoin(c1 bmt2)
HashJoin(c1 bmt1 bmt2)
MergeJoin(b1t1 b1t2)
MergeJoin(b2t1 b2t2)
MergeJoin(b3t1 b3t2)
*/
EXPLAIN
WITH c1 (c1) AS (
SELECT b1t1.c1 FROM s1.t1 b1t1, s1.t2 b1t2 WHERE b1t1.c1 = b1t2.c1
)
SELECT bmt1.c1, (
SELECT b2t1.c1 FROM s1.t1 b2t1, s1.t2 b2t2 WHERE b2t1.c1 = b2t2.c1
)
                    FROM s1.t1 bmt1, s1.t2 bmt2, c1 WHERE bmt1.c1 = bmt2.c1
AND bmt1.c1 = c1.c1
AND bmt1.c1 <> (
SELECT b3t1.c1 FROM s1.t1 b3t1, s1.t2 b3t2 WHERE b3t1.c1 = b3t2.c1
);
');

SELECT explain_filter('
/*+
Leading(c1 bmt2 bmt1)
Leading(b1t2 b1t1)
Leading(b2t2 b2t1)
Leading(b3t2 b3t1)
MergeJoin(c1 bmt2)
HashJoin(c1 bmt1 bmt2)
MergeJoin(b1t1 b1t2)
MergeJoin(b2t1 b2t2)
MergeJoin(b3t1 b3t2)
Rows(c1 bmt2 #1)
Rows(c1 bmt1 bmt2 #1)
Rows(b1t1 b1t2 #1)
Rows(b2t1 b2t2 #1)
Rows(b3t1 b3t2 #1)
*/
EXPLAIN
WITH c1 (c1) AS (
SELECT b1t1.c1 FROM s1.t1 b1t1, s1.t2 b1t2 WHERE b1t1.c1 = b1t2.c1
)
SELECT bmt1.c1, (
SELECT b2t1.c1 FROM s1.t1 b2t1, s1.t2 b2t2 WHERE b2t1.c1 = b2t2.c1
)
                    FROM s1.t1 bmt1, s1.t2 bmt2, c1 WHERE bmt1.c1 = bmt2.c1
AND bmt1.c1 = c1.c1
AND bmt1.c1 <> (
SELECT b3t1.c1 FROM s1.t1 b3t1, s1.t2 b3t2 WHERE b3t1.c1 = b3t2.c1
)
;
');

-- No. R-2-2-3
SELECT explain_filter('
/*+
Leading(c1 bmt4 bmt3 bmt2 bmt1)
Leading(b1t4 b1t3 b1t2 b1t1) 
Leading(b2t4 b2t3 b2t2 b2t1)
Leading(b3t4 b3t3 b3t2 b3t1)
MergeJoin(c1 bmt4)
HashJoin(c1 bmt4 bmt3)
NestLoop(c1 bmt4 bmt3 bmt2)
MergeJoin(c1 bmt4 bmt3 bmt2 bmt1)
HashJoin(b1t4 b1t3)
NestLoop(b1t4 b1t3 b1t2)
MergeJoin(b1t4 b1t3 b1t2 b1t1)
HashJoin(b2t4 b2t3)
NestLoop(b2t4 b2t3 b2t2)
MergeJoin(b2t4 b2t3 b2t2 b2t1)
HashJoin(b3t4 b3t3)
NestLoop(b3t4 b3t3 b3t2)
MergeJoin(b3t4 b3t3 b3t2 b3t1)
*/
EXPLAIN
WITH c1 (c1) AS (
SELECT b1t1.c1 FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
)
SELECT bmt1.c1, (
SELECT b2t1.c1 FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
)
                    FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4, c1 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1 AND bmt1.c1 = c1.c1
AND bmt1.c1 <> (
SELECT b3t1.c1 FROM s1.t1 b3t1, s1.t2 b3t2, s1.t3 b3t3, s1.t4 b3t4 WHERE b3t1.c1 = b3t2.c1 AND b3t1.c1 = b3t3.c1 AND b3t1.c1 = b3t4.c1
);
');

SELECT explain_filter('
/*+
Leading(c1 bmt4 bmt3 bmt2 bmt1)
Leading(b1t4 b1t3 b1t2 b1t1) 
Leading(b2t4 b2t3 b2t2 b2t1)
Leading(b3t4 b3t3 b3t2 b3t1)
MergeJoin(c1 bmt4)
HashJoin(c1 bmt4 bmt3)
NestLoop(c1 bmt4 bmt3 bmt2)
MergeJoin(c1 bmt4 bmt3 bmt2 bmt1)
HashJoin(b1t4 b1t3)
NestLoop(b1t4 b1t3 b1t2)
MergeJoin(b1t4 b1t3 b1t2 b1t1)
HashJoin(b2t4 b2t3)
NestLoop(b2t4 b2t3 b2t2)
MergeJoin(b2t4 b2t3 b2t2 b2t1)
HashJoin(b3t4 b3t3)
NestLoop(b3t4 b3t3 b3t2)
MergeJoin(b3t4 b3t3 b3t2 b3t1)
Rows(c1 bmt4 #1)
Rows(c1 bmt4 bmt3 #1)
Rows(c1 bmt4 bmt3 bmt2 #1)
Rows(c1 bmt4 bmt3 bmt2 bmt1 #1)
Rows(b1t4 b1t3 #1)
Rows(b1t4 b1t3 b1t2 #1)
Rows(b1t4 b1t3 b1t2 b1t1 #1)
Rows(b2t4 b2t3 #1)
Rows(b2t4 b2t3 b2t2 #1)
Rows(b2t4 b2t3 b2t2 b2t1 #1)
Rows(b3t4 b3t3 #1)
Rows(b3t4 b3t3 b3t2 #1)
Rows(b3t4 b3t3 b3t2 b3t1 #1)
*/
EXPLAIN
WITH c1 (c1) AS (
SELECT b1t1.c1 FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
)
SELECT bmt1.c1, (
SELECT b2t1.c1 FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
)
                    FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4, c1 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1 AND bmt1.c1 = c1.c1
AND bmt1.c1 <> (
SELECT b3t1.c1 FROM s1.t1 b3t1, s1.t2 b3t2, s1.t3 b3t3, s1.t4 b3t4 WHERE b3t1.c1 = b3t2.c1 AND b3t1.c1 = b3t3.c1 AND b3t1.c1 = b3t4.c1
);
');

-- No. R-2-2-4
SELECT explain_filter('
/*+
Leading(c1 bmt4 bmt3 bmt2 bmt1)
Leading(b1t4 b1t3 b1t2 b1t1)
MergeJoin(c1 bmt4)
HashJoin(c1 bmt4 bmt3)
NestLoop(c1 bmt4 bmt3 bmt2)
MergeJoin(c1 bmt4 bmt3 bmt2 bmt1)
MergeJoin(b1t4 b1t3)
HashJoin(b1t4 b1t3 b1t2)
NestLoop(b1t4 b1t3 b1t2 b1t1)
*/
EXPLAIN
WITH c1 (c1) AS (
SELECT b1t1.c1 FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
)
SELECT bmt1.c1, (
SELECT b2t1.c1 FROM s1.t1 b2t1 WHERE b2t1.c1 = 1
)
                    FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4, c1 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1 AND bmt1.c1 = c1.c1
AND bmt1.c1 <> (
SELECT b3t1.c1 FROM s1.t1 b3t1
);
');

SELECT explain_filter('
/*+
Leading(c1 bmt4 bmt3 bmt2 bmt1)
Leading(b1t4 b1t3 b1t2 b1t1)
MergeJoin(c1 bmt4)
HashJoin(c1 bmt4 bmt3)
NestLoop(c1 bmt4 bmt3 bmt2)
MergeJoin(c1 bmt4 bmt3 bmt2 bmt1)
MergeJoin(b1t4 b1t3)
HashJoin(b1t4 b1t3 b1t2)
NestLoop(b1t4 b1t3 b1t2 b1t1)
Rows(c1 bmt4 #1)
Rows(c1 bmt4 bmt3 #1)
Rows(c1 bmt4 bmt3 bmt2 #1)
Rows(c1 bmt4 bmt3 bmt2 bmt1 #1)
Rows(b1t4 b1t3 #1)
Rows(b1t4 b1t3 b1t2 #1)
Rows(b1t4 b1t3 b1t2 b1t1 #1)
*/
EXPLAIN
WITH c1 (c1) AS (
SELECT b1t1.c1 FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
)
SELECT bmt1.c1, (
SELECT b2t1.c1 FROM s1.t1 b2t1 WHERE b2t1.c1 = 1
)
                    FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4, c1 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1 AND bmt1.c1 = c1.c1
AND bmt1.c1 <> (
SELECT b3t1.c1 FROM s1.t1 b3t1
);
');

----
---- No. R-2-3 RULE or VIEW
----

-- No. R-2-3-1
SELECT explain_filter('
/*+
Leading(r1 t1 t2 t3 t4)
*/
EXPLAIN UPDATE s1.r1 SET c1 = c1 WHERE c1 = 1;
');

SELECT explain_filter('
/*+
Leading(r1 t1 t2 t3 t4)
Rows(r1 t1 t2 t3 t4 #2)
Rows(r1 t1 t2 t3 #2)
Rows(r1 t1 t2 #2)
Rows(r1 t1 #2)
*/
EXPLAIN UPDATE s1.r1 SET c1 = c1 WHERE c1 = 1;
');

SELECT explain_filter('
/*+
Leading(r1_ b1t1 b1t2 b1t3 b1t4)
*/
EXPLAIN UPDATE s1.r1_ SET c1 = c1 WHERE c1 = 1;
');

SELECT explain_filter('
/*+
Leading(r1_ b1t1 b1t2 b1t3 b1t4)
Rows(r1_ b1t1 b1t2 b1t3 b1t4 #2)
Rows(r1_ b1t1 b1t2 b1t3 #2)
Rows(r1_ b1t1 b1t2 #2)
Rows(r1_ b1t1 #2)
*/
EXPLAIN UPDATE s1.r1_ SET c1 = c1 WHERE c1 = 1;
');

-- No. R-2-3-2
SELECT explain_filter('
/*+
Leading(r2 t1 t2 t3 t4)
*/
EXPLAIN UPDATE s1.r2 SET c1 = c1 WHERE c1 = 1;
');

SELECT explain_filter('
/*+
Leading(r2 t1 t2 t3 t4)
Rows(r2 t1 t2 t3 t4 #2)
Rows(r2 t1 t2 t3 #2)
Rows(r2 t1 t2 #2)
Rows(r2 t1 #2)
*/
EXPLAIN UPDATE s1.r2 SET c1 = c1 WHERE c1 = 1;
');

SELECT explain_filter('
/*+
Leading(r2_ b1t1 b1t2 b1t3 b1t4)
Leading(r2_ b2t1 b2t2 b2t3 b2t4)
*/
EXPLAIN UPDATE s1.r2_ SET c1 = c1 WHERE c1 = 1;
');

SELECT explain_filter('
/*+
Leading(r2_ b1t1 b1t2 b1t3 b1t4)
Leading(r2_ b2t1 b2t2 b2t3 b2t4)
Rows(r2_ b1t1 #2)
Rows(r2_ b1t1 b1t2 #2)
Rows(r2_ b1t1 b1t2 b1t3 #2)
Rows(r2_ b1t1 b1t2 b1t3 b1t4 #2)
Rows(r2_ b2t1 #2)
Rows(r2_ b2t1 b2t2 #2)
Rows(r2_ b2t1 b2t2 b2t3  #2)
Rows(r2_ b2t1 b2t2 b2t3 b2t4 #2)
*/
EXPLAIN UPDATE s1.r2_ SET c1 = c1 WHERE c1 = 1;
');

-- No. R-2-3-3
SELECT explain_filter('
/*+
Leading(r3 t1 t2 t3 t4)
*/
EXPLAIN UPDATE s1.r3 SET c1 = c1 WHERE c1 = 1;
');

SELECT explain_filter('
/*+
Leading(r3 t1 t2 t3 t4)
Rows(r3 t1 t2 t3 t4 #2)
Rows(r3 t1 t2 t3 #2)
Rows(r3 t1 t2 #2)
Rows(r3 t1 #2)
*/
EXPLAIN UPDATE s1.r3 SET c1 = c1 WHERE c1 = 1;
');

SELECT explain_filter('
/*+
Leading(r3_ b1t1 b1t2 b1t3 b1t4)
Leading(r3_ b2t1 b2t2 b2t3 b2t4)
Leading(r3_ b3t1 b3t2 b3t3 b3t4)
*/
EXPLAIN UPDATE s1.r3_ SET c1 = c1 WHERE c1 = 1;
');

SELECT explain_filter('
/*+
Leading(r3_ b1t1 b1t2 b1t3 b1t4)
Leading(r3_ b2t1 b2t2 b2t3 b2t4)
Leading(r3_ b3t1 b3t2 b3t3 b3t4)
Rows(r3_ b1t1 #2)
Rows(r3_ b1t1 b1t2 #2)
Rows(r3_ b1t1 b1t2 b1t3 #2)
Rows(r3_ b1t1 b1t2 b1t3 b1t4 #2)
Rows(r3_ b2t1 #2)
Rows(r3_ b2t1 b2t2 #2)
Rows(r3_ b2t1 b2t2 b2t3 #2)
Rows(r3_ b2t1 b2t2 b2t3 b2t4 #2)
Rows(r3_ b3t1 #2)
Rows(r3_ b3t1 b3t2 #2)
Rows(r3_ b3t1 b3t2 b3t3 #2)
Rows(r3_ b3t1 b3t2 b3t3 b3t4 #2)
*/
EXPLAIN UPDATE s1.r3_ SET c1 = c1 WHERE c1 = 1;
');

-- No. R-2-3-4
SELECT explain_filter('
/*+HashJoin(v1t1 v1t1)*/
EXPLAIN SELECT * FROM s1.v1 v1, s1.v1 v2 WHERE v1.c1 = v2.c1;
');

SELECT explain_filter('
/*+HashJoin(v1t1 v1t1)Rows(v1t1 v1t1 #1)*/
EXPLAIN SELECT * FROM s1.v1 v1, s1.v1 v2 WHERE v1.c1 = v2.c1;
');

-- No. R-2-3-5
SELECT explain_filter('
/*+NestLoop(v1t1 v1t1_)*/
EXPLAIN SELECT * FROM s1.v1 v1, s1.v1_ v2 WHERE v1.c1 = v2.c1;
');

SELECT explain_filter('
/*+NestLoop(v1t1 v1t1_)Rows(v1t1 v1t1_ #1)*/
EXPLAIN SELECT * FROM s1.v1 v1, s1.v1_ v2 WHERE v1.c1 = v2.c1;
');

----
---- No. R-2-4 VALUES clause
----

-- No. R-2-4-1
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,''1''), (2,2,2,''2'')) AS t3 (c1, c2, c3, c4) WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1;
');

SELECT explain_filter('
/*+ Leading(t3 t1 t2) Rows(t3 t1 #2)Rows(t3 t1 t2 #2)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,''1''), (2,2,2,''2'')) AS t3 (c1, c2, c3, c4) WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1;
');

SELECT explain_filter('
/*+ Leading(*VALUES* t1 t2) Rows(*VALUES* t1 #2)Rows(*VALUES* t1 t2 #20)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,''1''), (2,2,2,''2'')) AS t3 (c1, c2, c3, c4) WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1;
');

-- No. R-2-4-2
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,''1''), (2,2,2,''2'')) AS t3 (c1, c2, c3, c4), (VALUES(1,1,1,''1''), (2,2,2,''2'')) AS t4 (c1, c2, c3, c4) WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1;
');

SELECT explain_filter('
/*+ Leading(t4 t3 t2 t1) Rows(t4 t3 #2) Rows(t4 t3 t2 #2)Rows(t4 t3 t2 t1 #2)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,''1''), (2,2,2,''2'')) AS t3 (c1, c2, c3, c4), (VALUES(1,1,1,''1''), (2,2,2,''2'')) AS t4 (c1, c2, c3, c4) WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1;
');

SELECT explain_filter('
/*+ Leading(*VALUES* t3 t2 t1) Rows(t4 t3 #2)Rows(*VALUES* t3 t2 #2)Rows(*VALUES* t3 t2 t1 #2)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,''1''), (2,2,2,''2'')) AS t3 (c1, c2, c3, c4), (VALUES(1,1,1,''1''), (2,2,2,''2'')) AS t4 (c1, c2, c3, c4) WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1;
');

----
---- No. R-2-5
----

-- No. R-2-5-1
SELECT explain_filter('
EXPLAIN SELECT max(bmt1.c1) FROM s1.t1 bmt1, (SELECT ctid, * FROM s1.t2 bmt2) sbmt2, (SELECT ctid, * FROM s1.t3 bmt3) sbmt3, (SELECT ctid, * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = sbmt2.c1 AND bmt1.c1 = sbmt3.c1 AND bmt1.c1 = sbmt4.c1;
');

SELECT explain_filter('
/*+
Leading(bmt4 bmt3 bmt2 bmt1)
Rows(bmt1 bmt2 bmt3 bmt4 *0.7)
*/
EXPLAIN SELECT bmt1.c1 FROM s1.t1 bmt1, (SELECT ctid, * FROM s1.t2 bmt2) sbmt2, (SELECT ctid, * FROM s1.t3 bmt3) sbmt3, (SELECT ctid, * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = sbmt2.c1 AND bmt1.c1 = sbmt3.c1 AND bmt1.c1 = sbmt4.c1;
');

-- No. R-2-5-2
SELECT explain_filter('
EXPLAIN SELECT bmt1.c1 FROM s1.t1 bmt1, (SELECT ctid, * FROM s1.t2 bmt2) sbmt2, (SELECT ctid, * FROM s1.t3 bmt3) sbmt3, (SELECT ctid, * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = sbmt2.c1 AND bmt1.c1 = sbmt3.c1 AND bmt1.c1 = sbmt4.c1;
');

SELECT explain_filter('
/*+
Leading(bmt4 bmt3 bmt2 bmt1)
Rows(bmt4 bmt3 *0.6)
*/
EXPLAIN SELECT bmt1.c1 FROM s1.t1 bmt1, (SELECT ctid, * FROM s1.t2 bmt2) sbmt2, (SELECT ctid, * FROM s1.t3 bmt3) sbmt3, (SELECT ctid, * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = sbmt2.c1 AND bmt1.c1 = sbmt3.c1 AND bmt1.c1 = sbmt4.c1;
');

-- No. R-2-5-3
SELECT explain_filter('
EXPLAIN SELECT bmt1.c1 FROM s1.t1 bmt1, (SELECT ctid, * FROM s1.t2 bmt2) sbmt2, (SELECT ctid, * FROM s1.t3 bmt3) sbmt3, (SELECT ctid, * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = sbmt2.c1 AND bmt1.c1 = sbmt3.c1 AND bmt1.c1 = sbmt4.c1;
');

SELECT explain_filter('
/*+
Leading(bmt4 bmt3 bmt2 bmt1)
Rows(bmt4 bmt1 *0.5)
*/
EXPLAIN SELECT bmt1.c1 FROM s1.t1 bmt1, (SELECT ctid, * FROM s1.t2 bmt2) sbmt2, (SELECT ctid, * FROM s1.t3 bmt3) sbmt3, (SELECT ctid, * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = sbmt2.c1 AND bmt1.c1 = sbmt3.c1 AND bmt1.c1 = sbmt4.c1;
');

----
---- No. R-3-1 abusolute value
----

-- No. R-3-1-1
SELECT explain_filter('
/*+Rows(t1 t2 #0)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-3-1-2
SELECT explain_filter('
/*+Rows(t1 t2 #5)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

----
---- No. R-3-2 increase or decrease value
----

-- No. R-3-2-1
SELECT explain_filter('
/*+Rows(t1 t2 +1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-3-2-2
SELECT explain_filter('
/*+Rows(t1 t2 -1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-3-2-3
SELECT explain_filter('
/*+Rows(t1 t2 -1000)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

----
---- No. R-3-3 multiple 
----

-- No. R-3-3-1
SELECT explain_filter('
/*+Rows(t1 t2 *0)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-3-3-2
SELECT explain_filter('
/*+Rows(t1 t2 *2)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-3-3-3
SELECT explain_filter('
/*+Rows(t1 t2 *0.1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

----
---- No. R-3-4 join inherit tables
----

-- No. R-3-4-1
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.p1, s1.p2 WHERE p1.c1 = p2.c1;
');

SELECT explain_filter('
/*+Rows(p1 p2 #1)*/
EXPLAIN SELECT * FROM s1.p1, s1.p2 WHERE p1.c1 = p2.c1;
');

-- No. R-3-4-2
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.p1, s1.p2 WHERE p1.c1 = p2.c1;
');

SELECT explain_filter('
/*+Rows(p1c1 p2c1 #1)*/
EXPLAIN SELECT * FROM s1.p1, s1.p2 WHERE p1.c1 = p2.c1;
');

----
---- No. R-3-5 conflict join method hint
----

-- No. R-3-5-1
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-3-5-2
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)Rows(t1 t2 #1)Rows(t1 t2 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-3-5-3
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 #1)Rows(t2 t1 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

-- No. R-3-5-4
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(t2 t1 #1)Rows(t1 t2 #1)Rows(t2 t1 #1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

----
---- No. R-3-6 hint state output
----

-- No. R-3-6-1
SET client_min_messages TO DEBUG1;
SELECT explain_filter('
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');

SELECT explain_filter('
/*+Rows(t1 t2 +1)*/
EXPLAIN SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
');
