SET pg_hint_plan.debug_print TO on;
SET client_min_messages TO LOG;
SET search_path TO public;
+SET max_parallel_workers_per_gather TO 0;
EXPLAIN (COSTS false) 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;
EXPLAIN (COSTS false) SELECT *, (SELECT max(t1.c1) FROM s1.t1, s1.t2, s1.t3, s1.t4 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1) FROM s1.t1, s1.t2, s1.t3, s1.t4 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1;
/*+Leading(t4 t2 t3 t1)*/
EXPLAIN (COSTS false) SELECT *, (SELECT max(t1.c1) FROM s1.t1, s1.t2, s1.t3, s1.t4 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1) FROM s1.t1, s1.t2, s1.t3, s1.t4 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1;
-/*+Leading(st1 st2 st3 st4 t4 t2 t3 t1)*/
+/*+Leading(st1 st2 st3 st4)Leading(t4 t2 t3 t1)*/
EXPLAIN (COSTS false) SELECT *, (SELECT max(st1.c1) FROM s1.t1 st1, s1.t2 st2, s1.t3 st3, s1.t4 st4 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1) FROM s1.t1, s1.t2, s1.t3, s1.t4 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1;
----
EXPLAIN (COSTS false) SELECT * FROM s1.f1() t1, s1.f1() t2, s1.f1() t3, s1.f1() t4 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1;
-- No. L-1-6-8
-EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1')) AS t1 (c1, c2, c3, c4), s1.t2, s1.t3, s1.t4 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1;
+EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1'), (2,2,2,'2')) AS t1 (c1, c2, c3, c4), s1.t2, s1.t3, s1.t4 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1;
/*+Leading(t4 t3 t2 t1)*/
-EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1')) AS t1 (c1, c2, c3, c4), s1.t2, s1.t3, s1.t4 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1;
+EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1'), (2,2,2,'2')) AS t1 (c1, c2, c3, c4), s1.t2, s1.t3, s1.t4 WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1 AND t1.c1 = t4.c1;
-- No. L-1-6-9
EXPLAIN (COSTS false) WITH c1(c1) AS (SELECT st1.c1 FROM s1.t1 st1, s1.t1 st2, s1.t1 st3, s1.t1 st4 WHERE st1.c1 = st2.c1 AND st1.c1 = st3.c1 AND st1.c1 = st4.c1) SELECT * FROM c1 ct1, c1 ct2, c1 ct3, c1 ct4 WHERE ct1.c1 = ct2.c1 AND ct1.c1 = ct3.c1 AND ct1.c1 = ct4.c1;
-/*+Leading(ct4 ct3 ct2 ct1 st4 st3 st2 st1)*/
+/*+Leading(ct4 ct3 ct2 ct1)Leading(st4 st3 st2 st1)*/
EXPLAIN (COSTS false) WITH c1(c1) AS (SELECT st1.c1 FROM s1.t1 st1, s1.t1 st2, s1.t1 st3, s1.t1 st4 WHERE st1.c1 = st2.c1 AND st1.c1 = st3.c1 AND st1.c1 = st4.c1) SELECT * FROM c1 ct1, c1 ct2, c1 ct3, c1 ct4 WHERE ct1.c1 = ct2.c1 AND ct1.c1 = ct3.c1 AND ct1.c1 = ct4.c1;
-- No. L-1-6-10
FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.ctid = '(1,1)' AND bmt1.c1 = bmt2.c1 AND bmt2.ctid = '(1,1)' AND bmt1.c1 = bmt3.c1 AND bmt3.ctid = '(1,1)' AND bmt1.c1 = bmt4.c1 AND bmt4.ctid = '(1,1)'
;
/*+
-Leading(bmt1 bmt2 bmt3 bmt4 b1t2 b1t3 b1t4 b1t1 b2t3 b2t4 b2t1 b2t2)
+Leading(bmt1 bmt2 bmt3 bmt4)
+Leading(b1t2 b1t3 b1t4 b1t1)
+Leading(b2t3 b2t4 b2t1 b2t2)
*/
EXPLAIN (COSTS false)
SELECT max(bmt1.c1), (
FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.ctid = '(1,1)' AND bmt1.c1 = bmt2.c1 AND bmt2.ctid = '(1,1)' AND bmt1.c1 = bmt3.c1 AND bmt3.ctid = '(1,1)' AND bmt1.c1 = bmt4.c1 AND bmt4.ctid = '(1,1)'
;
/*+
-Leading(bmt1 bmt2 bmt3 bmt4 b1t2 b1t3 b1t4 b1t1 b2t3 b2t4 b2t1 b2t2 b3t4 b3t1 b3t2 b3t3)
+Leading(bmt1 bmt2 bmt3 bmt4)
+Leading(b1t2 b1t3 b1t4 b1t1)
+Leading(b2t3 b2t4 b2t1 b2t2)
+Leading(b3t4 b3t1 b3t2 b3t3)
*/
EXPLAIN (COSTS false)
SELECT max(bmt1.c1), (
)
;
/*+
-Leading(bmt1 bmt2 bmt3 bmt4 b1t2 b1t3 b1t4 b1t1 b2t3 b2t4 b2t1 b2t2)
+Leading(bmt1 bmt2 bmt3 bmt4)
+Leading(b1t2 b1t3 b1t4 b1t1)
+Leading(b2t3 b2t4 b2t1 b2t2)
*/
EXPLAIN (COSTS false)
SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.ctid = '(1,1)' AND bmt1.c1 = bmt2.c1 AND bmt2.ctid = '(1,1)' AND bmt1.c1 = bmt3.c1 AND bmt3.ctid = '(1,1)' AND bmt1.c1 = bmt4.c1 AND bmt4.ctid = '(1,1)'
)
;
/*+
-Leading(bmt1 bmt2 bmt3 bmt4 b1t2 b1t3 b1t4 b1t1 b2t3 b2t4 b2t1 b2t2 b3t4 b3t1 b3t2 b3t3)
+Leading(bmt1 bmt2 bmt3 bmt4)
+Leading(b1t2 b1t3 b1t4 b1t1)
+Leading(b2t3 b2t4 b2t1 b2t2)
+Leading(b3t4 b3t1 b3t2 b3t3)
*/
EXPLAIN (COSTS false)
SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.ctid = '(1,1)' AND bmt1.c1 = bmt2.c1 AND bmt2.ctid = '(1,1)' AND bmt1.c1 = bmt3.c1 AND bmt3.ctid = '(1,1)' AND bmt1.c1 = bmt4.c1 AND bmt4.ctid = '(1,1)'
AND bmt1.c1 = c2.c1
;
/*+
-Leading(c2 c1 bmt1 bmt2 bmt3 bmt4 b1t2 b1t3 b1t4 b1t1 b2t3 b2t4 b2t1 b2t2)
+Leading(c2 c1 bmt1 bmt2 bmt3 bmt4)
+Leading(b1t2 b1t3 b1t4 b1t1)
+Leading(b2t3 b2t4 b2t1 b2t2)
*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
AND bmt1.c1 = c3.c1
;
/*+
-Leading(c3 c2 c1 bmt1 bmt2 bmt3 bmt4 b1t2 b1t3 b1t4 b1t1 b2t3 b2t4 b2t1 b2t2 b3t4 b3t1 b3t2 b3t3)
+Leading(c3 c2 c1 bmt1 bmt2 bmt3 bmt4)
+Leading(b1t2 b1t3 b1t4 b1t1)
+Leading(b2t3 b2t4 b2t1 b2t2)
+Leading(b3t4 b3t1 b3t2 b3t3)
*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
)
;
/*+
-Leading(c1 bmt1 b1t1 b2t1 b3t1)
+Leading(c1 bmt1)
*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
)
;
/*+
-Leading(c1 bmt2 b1t2 b2t2 b3t2 bmt1 b1t1 b2t1 b3t1)
+Leading(c1 bmt2 bmt1)
+Leading(b1t2 b1t1)
+Leading(b2t2 b2t1)
+Leading(b3t2 b3t1)
*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
)
;
/*+
-Leading(c1 bmt4 b1t4 b2t4 b3t4 bmt3 b1t3 b2t3 b3t3 bmt2 b1t2 b2t2 b3t2 bmt1 b1t1 b2t1 b3t1)
+Leading(c1 bmt4 bmt3 bmt2 bmt1)
+Leading(b1t4 b1t3 b1t2 b1t1)
+Leading(b2t4 b2t3 b2t2 b2t1)
+Leading(b3t4 b3t3 b3t2 b3t1)
*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
)
;
/*+
-Leading(c1 bmt4 b1t4 bmt3 b1t3 bmt2 b1t2 bmt1 b1t1 b2t1 b3t1)
+Leading(c1 bmt4 bmt3 bmt2 bmt1)
+Leading(b1t4 b1t3 b1t2 b1t1)
*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
/*+ Leading(t4 t3 t2 t1 r2) */
EXPLAIN (COSTS false) UPDATE s1.r2 SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
EXPLAIN (COSTS false) UPDATE s1.r2_ SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
-/*+Leading(
-b1t1 b1t2 b1t3 b1t4
-b2t1 b2t2 b2t3 b2t4 r2_
-) */
+/*+
+Leading(b1t1 b1t2 b1t3 b1t4 r2_)
+Leading(b2t1 b2t2 b2t3 b2t4 r2_)
+*/
EXPLAIN (COSTS false) UPDATE s1.r2_ SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
-- No. L-2-3-3
/*+ Leading(t4 t3 t2 t1 r3) */
EXPLAIN (COSTS false) UPDATE s1.r3 SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
EXPLAIN (COSTS false) UPDATE s1.r3_ SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
-/*+Leading(
-b1t1 b1t2 b1t3 b1t4
-b2t1 b2t2 b2t3 b2t4
-b3t1 b3t2 b3t3 b3t4 r3_
-) */
+/*+
+Leading(b1t1 b1t2 b1t3 b1t4 r3_)
+Leading(b2t1 b2t2 b2t3 b2t4 r3_)
+Leading(b3t1 b3t2 b3t3 b3t4 r3_)
+*/
EXPLAIN (COSTS false) UPDATE s1.r3_ SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+-- No. L-2-3-4
+EXPLAIN (COSTS false) SELECT * FROM s1.v1 v1, s1.v1 v2 WHERE v1.c1 = v2.c1;
+/*+Leading(v1t1 v1t1)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.v1 v1, s1.v1 v2 WHERE v1.c1 = v2.c1;
+
+-- No. L-2-3-5
+EXPLAIN (COSTS false) SELECT * FROM s1.v1 v1, s1.v1_ v2 WHERE v1.c1 = v2.c1;
+/*+Leading(v1t1 v1t1_)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.v1 v1, s1.v1_ v2 WHERE v1.c1 = v2.c1;
+
+-- No. L-2-3-6
+EXPLAIN (COSTS false) SELECT * FROM s1.r4 t1, s1.r4 t2 WHERE t1.c1 = t2.c1;
+/*+Leading(r4t1 r4t1)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.r4 t1, s1.r4 t2 WHERE t1.c1 = t2.c1;
+
+-- No. L-2-3-7
+EXPLAIN (COSTS false) SELECT * FROM s1.r4 t1, s1.r5 t2 WHERE t1.c1 = t2.c1;
+/*+Leading(r4t1 r5t1)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.r4 t1, s1.r5 t2 WHERE t1.c1 = t2.c1;
+
----
---- No. L-2-4 VALUES clause
----
-- No. L-2-4-1
-EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,'1')) AS t3 (c1, c2, c3, c4) WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1;
+EXPLAIN (COSTS false) 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;
/*+ Leading(t3 t1 t2) */
-EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,'1')) AS t3 (c1, c2, c3, c4) WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1;
+EXPLAIN (COSTS false) 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;
/*+ Leading(*VALUES* t1 t2) */
-EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,'1')) AS t3 (c1, c2, c3, c4) WHERE t1.c1 = t2.c1 AND t1.c1 = t3.c1;
+EXPLAIN (COSTS false) 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. L-2-4-2
-EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,'1')) 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;
+EXPLAIN (COSTS false) 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;
/*+ Leading(t4 t3 t2 t1) */
-EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,'1')) 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;
+EXPLAIN (COSTS false) 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;
/*+ Leading(*VALUES* t3 t2 t1) */
-EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,'1')) 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;
+EXPLAIN (COSTS false) 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. L-3-1 leading the order of table joins
----
-- No. L-3-6-1
+/*+Leading((t2))*/
+EXPLAIN (COSTS false) 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. L-3-6-2
+/*+Leading((t2 t3))*/
+EXPLAIN (COSTS false) 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. L-3-6-3
+/*+Leading((t2 t3 t4))*/
+EXPLAIN (COSTS false) 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. L-3-6-4
+/*+Leading(((t1 t2) (t3 t4)))*/
+EXPLAIN (COSTS false) 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. L-3-6-5
+/*+Leading((((t1 t3) t4) t2)))*/
+EXPLAIN (COSTS false) 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. L-3-6-6
+/*+Leading((t1 (t3 (t4 t2))))*/
+EXPLAIN (COSTS false) 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;