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 search_path TO public;
----
---- No.A-1-1 install
---- No.A-2-1 uninstall
----
-- No.A-1-1-3
CREATE EXTENSION pg_hint_plan;
-- No.A-1-2-3
DROP EXTENSION pg_hint_plan;
-- No.A-1-1-4
CREATE EXTENSION pg_hint_plan SCHEMA other_name;
ERROR:  extension "pg_hint_plan" must be installed in schema "hint_plan"
CREATE EXTENSION pg_hint_plan;
----
---- No. A-5-1 comment pattern
----
-- No. A-5-1-1
/*+SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-5-1-2
/* +SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

-- No. A-5-1-3
/*SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

-- No. A-5-1-4
--+SeqScan(t1)
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

-- No. A-5-1-5
/* /*+SeqScan(t1)*/  */
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

----
---- No. A-5-2 hint position
----
-- No. A-5-2-1
EXPLAIN (COSTS false) SELECT c1 FROM s1.t1 WHERE t1.c1 = 1;
            QUERY PLAN             
-----------------------------------
 Index Only Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

/*+SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT c1 FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-5-2-2
EXPLAIN (COSTS false) SELECT c1, c2 AS c_2 /*+SeqScan(t1)*/ FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-5-2-3
EXPLAIN (COSTS false) SELECT c1 AS "c1"/*+SeqScan(t1)*/ FROM s1.t1 WHERE t1.c1 = 1;
            QUERY PLAN             
-----------------------------------
 Index Only Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

-- No. A-5-2-4
EXPLAIN (COSTS false) SELECT * /*+SeqScan(t1)*/ FROM s1.t1 WHERE t1.c1 = 1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

----
---- No. A-6-1 hint's table definition
----
SET pg_hint_plan.enable_hint_table TO on;
-- No. A-6-1-1
\d hint_plan.hints
                                  Table "hint_plan.hints"
      Column       |  Type   |                          Modifiers                           
-------------------+---------+--------------------------------------------------------------
 id                | integer | not null default nextval('hint_plan.hints_id_seq'::regclass)
 norm_query_string | text    | not null
 application_name  | text    | not null
 hints             | text    | not null
Indexes:
    "hints_pkey" PRIMARY KEY, btree (id)
    "hints_norm_and_app" UNIQUE, btree (norm_query_string, application_name)

----
---- No. A-6-2 search condition
----
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

-- No. A-6-2-1
INSERT INTO hint_plan.hints (norm_query_string, application_name, hints)
	VALUES (
	'EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = ?;',
	'',
	'SeqScan(t1)');
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-6-2-2
INSERT INTO hint_plan.hints (norm_query_string, application_name, hints)
	VALUES (
	'EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = ?;',
	'psql',
	'BitmapScan(t1)');
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

TRUNCATE hint_plan.hints;
-- No. A-6-2-3
INSERT INTO hint_plan.hints (norm_query_string, application_name, hints)
	VALUES (
	'EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = ?;',
	'dummy_application_name',
	'SeqScan(t1)'
);
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

TRUNCATE hint_plan.hints;
-- No. A-6-2-4
INSERT INTO hint_plan.hints (norm_query_string, application_name, hints)
	VALUES (
	'EXPLAIN (COSTS false) SELECT * FROM s1.t1;',
	'',
	'SeqScan(t1)'
);
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

TRUNCATE hint_plan.hints;
----
---- No. A-6-3 number of constant
----
-- No. A-6-3-1
INSERT INTO hint_plan.hints (norm_query_string, application_name, hints)
	VALUES (
	'EXPLAIN (COSTS false) SELECT c1 FROM s1.t1;',
	'',
	'SeqScan(t1)'
);
EXPLAIN (COSTS false) SELECT c1 FROM s1.t1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

   QUERY PLAN   
----------------
 Seq Scan on t1
(1 row)

TRUNCATE hint_plan.hints;
-- No. A-6-3-2
INSERT INTO hint_plan.hints (norm_query_string, application_name, hints)
	VALUES (
	'EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = ?;',
	'',
	'SeqScan(t1)'
);
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

TRUNCATE hint_plan.hints;
-- No. A-6-3-3
INSERT INTO hint_plan.hints (norm_query_string, application_name, hints)
	VALUES (
	'EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = ? OR t1.c1 = ?;',
	'',
	'SeqScan(t1)'
);
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1 OR t1.c1 = 0;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Seq Scan on t1
   Filter: ((c1 = 1) OR (c1 = 0))
(2 rows)

TRUNCATE hint_plan.hints;
SET pg_hint_plan.enable_hint_table TO off;
----
---- No. A-7-2 hint delimiter
----
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

-- No. A-7-2-1
-- No. A-7-2-2
-- No. A-7-2-3
-- No. A-7-2-4
-- No. A-7-2-5
-- No. A-7-2-6
-- No. A-7-2-7
/*+Set(enable_indexscan"off")Set(enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-8
/*+ Set(enable_indexscan"off")Set(enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-9
/*+Set(enable_indexscan"off")Set(enable_bitmapscan"off") */
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-10
/*+ Set (enable_indexscan"off") Set (enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-11
/*+Set ( enable_indexscan"off")Set ( enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-12
/*+Set(enable_indexscan"off" ) Set(enable_bitmapscan"off" ) */
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-13
/*+Set( enable_indexscan "off" )Set( enable_bitmapscan "off" )*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-14
/*+ Set ( enable_indexscan "off" ) Set ( enable_bitmapscan "off" ) */
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-15
/*+	Set(enable_indexscan"off")Set(enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-16
/*+Set(enable_indexscan"off")Set(enable_bitmapscan"off")	*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-17
/*+	Set	(enable_indexscan"off")	Set	(enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-18
/*+Set	(	enable_indexscan"off")Set	(	enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-19
/*+Set(enable_indexscan"off"	)	Set(enable_bitmapscan"off"	)	*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-20
/*+Set(	enable_indexscan	"off"	)Set(	enable_bitmapscan	"off"	)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-21
/*+	Set	(	enable_indexscan	"off"	)	Set	(	enable_bitmapscan	"off"	)	*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-22
/*+
Set(enable_indexscan"off")Set(enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-23
/*+Set(enable_indexscan"off")Set(enable_bitmapscan"off")
*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-24
/*+
Set
(enable_indexscan"off")
Set
(enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-25
/*+Set
(
enable_indexscan"off")Set
(
enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-26
/*+Set(enable_indexscan"off"
)
Set(enable_bitmapscan"off"
)
*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-27
/*+Set(
enable_indexscan
"off"
)Set(
enable_bitmapscan
"off"
)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-28
/*+
Set
(
enable_indexscan
"off"
)
Set
(
enable_bitmapscan
"off"
)
*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-29
/*+ 	
	 Set(enable_indexscan"off")Set(enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-30
/*+Set(enable_indexscan"off")Set(enable_bitmapscan"off") 	
	 */
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-31
/*+ 	
	 Set 	
	 (enable_indexscan"off") 	
	 Set 	
	 (enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-32
/*+Set 	
	 ( 	
	 enable_indexscan"off")Set 	
	 ( 	
	 enable_bitmapscan"off")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-33
/*+Set(enable_indexscan"off" 	
	 ) 	
	 Set(enable_bitmapscan"off" 	
	 ) 	
	 */
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-34
/*+Set( 	
	 enable_indexscan 	
	 "off" 	
	 )Set( 	
	 enable_bitmapscan 	
	 "off" 	
	 )*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-2-35
/*+ 	
	 Set 	
	 ( 	
	 enable_indexscan 	
	 "off" 	
	 ) 	
	 Set 	
	 ( 	
	 enable_bitmapscan 	
	 "off" 	
	 ) 	
	 */
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_bitmapscan off)
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

----
---- No. A-7-3 hint object pattern
---- No. A-9-2 message object pattern
----
-- No. A-7-3-1
-- No. A-9-2-1
/*+SeqScan(t)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 t WHERE t.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1 t
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan(ttt)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 ttt WHERE ttt.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(ttt)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1 ttt
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan("t")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 t WHERE t.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1 t
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan("ttt")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 ttt WHERE ttt.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(ttt)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1 ttt
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-3-2
-- No. A-9-2-2
/*+SeqScan(T)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "T" WHERE "T".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(T)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1 "T"
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan(TTT)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "TTT" WHERE "TTT".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(TTT)
not used hint:
duplication hint:
error hint:

      QUERY PLAN      
----------------------
 Seq Scan on t1 "TTT"
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan("T")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "T" WHERE "T".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(T)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1 "T"
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan("TTT")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "TTT" WHERE "TTT".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(TTT)
not used hint:
duplication hint:
error hint:

      QUERY PLAN      
----------------------
 Seq Scan on t1 "TTT"
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-3-3
-- No. A-9-2-3
/*+SeqScan(()*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "(" WHERE "(".c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near "()"
DETAIL:  Zero-length delimited string.
            QUERY PLAN            
----------------------------------
 Index Scan using t1_i1 on t1 "("
   Index Cond: (c1 = 1)
(2 rows)

/*+SeqScan("(")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "(" WHERE "(".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan("(")
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1 "("
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-3-4
-- No. A-9-2-4
/*+SeqScan())*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 ")" WHERE ")".c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near ")"
DETAIL:  SeqScan hint requires a relation.
INFO:  pg_hint_plan: hint syntax error at or near ")"
DETAIL:  Unrecognized hint keyword ")".
LOG:  pg_hint_plan:
used hint:
not used hint:
duplication hint:
error hint:
SeqScan()

            QUERY PLAN            
----------------------------------
 Index Scan using t1_i1 on t1 ")"
   Index Cond: (c1 = 1)
(2 rows)

/*+SeqScan(")")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 ")" WHERE ")".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(")")
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1 ")"
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan(")))")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 ")))" WHERE ")))".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(")))")
not used hint:
duplication hint:
error hint:

      QUERY PLAN      
----------------------
 Seq Scan on t1 ")))"
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-3-5
-- No. A-9-2-5
/*+SeqScan(")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 """" WHERE """".c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Unterminated quoted string.
            QUERY PLAN             
-----------------------------------
 Index Scan using t1_i1 on t1 """"
   Index Cond: (c1 = 1)
(2 rows)

/*+SeqScan("""")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 """" WHERE """".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan("""")
not used hint:
duplication hint:
error hint:

     QUERY PLAN      
---------------------
 Seq Scan on t1 """"
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan("""""""")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 """""""" WHERE """""""".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan("""""""")
not used hint:
duplication hint:
error hint:

       QUERY PLAN        
-------------------------
 Seq Scan on t1 """"""""
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-3-6
-- No. A-9-2-6
/*+SeqScan( )*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 " " WHERE " ".c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  SeqScan hint requires a relation.
LOG:  pg_hint_plan:
used hint:
not used hint:
duplication hint:
error hint:
SeqScan()

            QUERY PLAN            
----------------------------------
 Index Scan using t1_i1 on t1 " "
   Index Cond: (c1 = 1)
(2 rows)

/*+SeqScan(" ")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 " " WHERE " ".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(" ")
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1 " "
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan("   ")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "   " WHERE "   ".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan("   ")
not used hint:
duplication hint:
error hint:

      QUERY PLAN      
----------------------
 Seq Scan on t1 "   "
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-3-7
-- No. A-9-2-7
/*+SeqScan(	)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "	" WHERE "	".c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  SeqScan hint requires a relation.
LOG:  pg_hint_plan:
used hint:
not used hint:
duplication hint:
error hint:
SeqScan()

            QUERY PLAN             
-----------------------------------
 Index Scan using t1_i1 on t1 "  "
   Index Cond: (c1 = 1)
(2 rows)

/*+SeqScan("	")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "	" WHERE "	".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan("	")
not used hint:
duplication hint:
error hint:

        QUERY PLAN         
---------------------------
 Seq Scan on t1 "        "
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan("			")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "			" WHERE "			".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan("			")
not used hint:
duplication hint:
error hint:

                QUERY PLAN                 
-------------------------------------------
 Seq Scan on t1 "                        "
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-3-8
-- No. A-9-2-8
/*+SeqScan(
)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "
" WHERE "
".c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  SeqScan hint requires a relation.
LOG:  pg_hint_plan:
used hint:
not used hint:
duplication hint:
error hint:
SeqScan()

           QUERY PLAN           
--------------------------------
 Index Scan using t1_i1 on t1 "
 "
   Index Cond: (c1 = 1)
(3 rows)

/*+SeqScan("
")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "
" WHERE "
".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan("
")
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1 "
 "
   Filter: (c1 = 1)
(3 rows)

/*+SeqScan("


")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "


" WHERE "


".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan("


")
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1 "
 
 
 "
   Filter: (c1 = 1)
(5 rows)

-- No. A-7-3-9
-- No. A-9-2-9
/*+SeqScan(Set)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "Set" WHERE "Set".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(Set)
not used hint:
duplication hint:
error hint:

      QUERY PLAN      
----------------------
 Seq Scan on t1 "Set"
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan("Set")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "Set" WHERE "Set".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(Set)
not used hint:
duplication hint:
error hint:

      QUERY PLAN      
----------------------
 Seq Scan on t1 "Set"
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan("Set SeqScan Leading")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "Set SeqScan Leading" WHERE "Set SeqScan Leading".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan("Set SeqScan Leading")
not used hint:
duplication hint:
error hint:

              QUERY PLAN              
--------------------------------------
 Seq Scan on t1 "Set SeqScan Leading"
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-3-10
-- No. A-9-2-10
/*+SeqScan(あ)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 あ WHERE あ.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(あ)
not used hint:
duplication hint:
error hint:

     QUERY PLAN      
---------------------
 Seq Scan on t1 "あ"
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan(あいう)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 あいう WHERE あいう.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(あいう)
not used hint:
duplication hint:
error hint:

       QUERY PLAN        
-------------------------
 Seq Scan on t1 "あいう"
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan("あ")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 あ WHERE あ.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(あ)
not used hint:
duplication hint:
error hint:

     QUERY PLAN      
---------------------
 Seq Scan on t1 "あ"
   Filter: (c1 = 1)
(2 rows)

/*+SeqScan("あいう")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 あいう WHERE あいう.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(あいう)
not used hint:
duplication hint:
error hint:

       QUERY PLAN        
-------------------------
 Seq Scan on t1 "あいう"
   Filter: (c1 = 1)
(2 rows)

-- No. A-7-3-11
-- No. A-9-2-11
/*+SeqScan(/**/)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "/**/" WHERE "/**/".c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near "/**/)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "/**/" WHERE "/**/".c1 = 1;"
DETAIL:  Nested block comments are not supported.
             QUERY PLAN              
-------------------------------------
 Index Scan using t1_i1 on t1 "/**/"
   Index Cond: (c1 = 1)
(2 rows)

/*+SeqScan(/**//**//**/)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "/**//**//**/" WHERE "/**//**//**/".c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near "/**//**//**/)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "/**//**//**/" WHERE "/**//**//**/".c1 = 1;"
DETAIL:  Nested block comments are not supported.
                 QUERY PLAN                  
---------------------------------------------
 Index Scan using t1_i1 on t1 "/**//**//**/"
   Index Cond: (c1 = 1)
(2 rows)

-- No. A-7-3-12
-- No. A-9-2-12
/*+SeqScan("tT()"" 	
Set/**/あ")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "tT()"" 	
Set/**/あ" WHERE "tT()"" 	
Set/**/あ".c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near "/**/あ")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "tT()"" 	
Set/**/あ" WHERE "tT()"" 	
Set/**/あ".c1 = 1;"
DETAIL:  Nested block comments are not supported.
                QUERY PLAN                
------------------------------------------
 Index Scan using t1_i1 on t1 "tT()""    
 Set/**/あ"
   Index Cond: (c1 = 1)
(3 rows)

--"
/*+SeqScan("tT()"" 	
Setあ")*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "tT()"" 	
Setあ" WHERE "tT()"" 	
Setあ".c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan("tT()"" 	
Setあ")
not used hint:
duplication hint:
error hint:

        QUERY PLAN        
--------------------------
 Seq Scan on t1 "tT()""  
 Setあ"
   Filter: (c1 = 1)
(3 rows)

-- No. A-7-3-13
-- No. A-9-2-13
/*+SeqScan(a123456789b123456789c123456789d123456789e123456789f123)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 "123456789012345678901234567890123456789012345678901234" WHERE "123456789012345678901234567890123456789012345678901234".c1 = 1;
LOG:  pg_hint_plan:
used hint:
not used hint:
SeqScan(a123456789b123456789c123456789d123456789e123456789f123)
duplication hint:
error hint:

                                      QUERY PLAN                                       
---------------------------------------------------------------------------------------
 Index Scan using t1_i1 on t1 "123456789012345678901234567890123456789012345678901234"
   Index Cond: (c1 = 1)
(2 rows)

----
---- No. A-7-4 hint parse error
----
-- No. A-7-4-1
/*+Set(enable_indexscan off)Set enable_tidscan off)Set(enable_bitmapscan off)SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near "enable_tidscan off)Set(enable_bitmapscan off)SeqScan(t1)"
DETAIL:  Opening parenthesis is necessary.
LOG:  pg_hint_plan:
used hint:
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 = 1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 = 1)
(4 rows)

-- No. A-7-4-2
/*+Set(enable_indexscan off)Set(enable_tidscan off Set(enable_bitmapscan off)SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near "(enable_bitmapscan off)SeqScan(t1)"
DETAIL:  Zero-length delimited string.
LOG:  pg_hint_plan:
used hint:
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 = 1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 = 1)
(4 rows)

-- No. A-7-4-3
/*+Set(enable_indexscan off)Set(enable_tidscan "off)Set(enable_bitmapscan off)SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Unterminated quoted string.
LOG:  pg_hint_plan:
used hint:
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 = 1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 = 1)
(4 rows)

-- No. A-7-4-4
/*+Set(enable_indexscan off)SeqScan("")Set(enable_bitmapscan off)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near ")Set(enable_bitmapscan off)"
DETAIL:  Zero-length delimited string.
LOG:  pg_hint_plan:
used hint:
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 = 1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 = 1)
(4 rows)

-- No. A-7-4-5
/*+Set(enable_indexscan off)NoSet(enable_tidscan off)Set(enable_bitmapscan off)SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near "NoSet(enable_tidscan off)Set(enable_bitmapscan off)SeqScan(t1)"
DETAIL:  Unrecognized hint keyword "NoSet".
LOG:  pg_hint_plan:
used hint:
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 = 1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 = 1)
(4 rows)

-- No. A-7-4-6
/*+Set(enable_indexscan off)"Set"(enable_tidscan off)Set(enable_bitmapscan off)SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near ""Set"(enable_tidscan off)Set(enable_bitmapscan off)SeqScan(t1)"
DETAIL:  Unrecognized hint keyword ""Set"".
LOG:  pg_hint_plan:
used hint:
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 = 1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 = 1)
(4 rows)

-- No. A-7-4-7
/*+Set(enable_indexscan off)Set(enable_tidscan /* value */off)Set(enable_bitmapscan off)SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
INFO:  pg_hint_plan: hint syntax error at or near "/* value */off)Set(enable_bitmapscan off)SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;"
DETAIL:  Nested block comments are not supported.
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

----
---- No. A-8-1 original GUC parameter
----
---- Don't test postgresql itself.
-- No. A-8-1-1
-- SET ROLE super_user;
-- SET pg_hint_plan.debug_print TO off;
-- SHOW pg_hint_plan.enable_hint;
-- SHOW pg_hint_plan.debug_print;
-- SHOW pg_hint_plan.parse_messages;
-- SET pg_hint_plan.enable_hint TO off;
-- SET pg_hint_plan.debug_print TO on;
-- SET pg_hint_plan.parse_messages TO error;
-- SHOW pg_hint_plan.enable_hint;
-- SHOW pg_hint_plan.debug_print;
-- SHOW pg_hint_plan.parse_messages;
-- RESET pg_hint_plan.enable_hint;
-- RESET pg_hint_plan.debug_print;
-- RESET pg_hint_plan.parse_messages;
-- SHOW pg_hint_plan.enable_hint;
-- SHOW pg_hint_plan.debug_print;
-- SHOW pg_hint_plan.parse_messages;
-- 
-- -- No. A-8-1-2
-- SET ROLE normal_user;
-- SHOW pg_hint_plan.enable_hint;
-- SHOW pg_hint_plan.debug_print;
-- SHOW pg_hint_plan.parse_messages;
-- SET pg_hint_plan.enable_hint TO off;
-- SET pg_hint_plan.debug_print TO on;
-- SET pg_hint_plan.parse_messages TO error;
-- SHOW pg_hint_plan.enable_hint;
-- SHOW pg_hint_plan.debug_print;
-- SHOW pg_hint_plan.parse_messages;
-- RESET pg_hint_plan.enable_hint;
-- RESET pg_hint_plan.debug_print;
-- RESET pg_hint_plan.parse_messages;
-- SHOW pg_hint_plan.enable_hint;
-- SHOW pg_hint_plan.debug_print;
-- SHOW pg_hint_plan.parse_messages;
-- 
-- RESET ROLE;
----
---- No. A-8-2 original GUC parameter pg_hint_plan.enable_hint
----
-- No. A-8-2-1
SET pg_hint_plan.debug_print TO off;
SET pg_hint_plan.enable_hint TO on;
SHOW pg_hint_plan.enable_hint;
 pg_hint_plan.enable_hint 
--------------------------
 on
(1 row)

/*+Set(enable_indexscan off)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 = 1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 = 1)
(4 rows)

-- No. A-8-2-2
SET pg_hint_plan.enable_hint TO off;
SHOW pg_hint_plan.enable_hint;
 pg_hint_plan.enable_hint 
--------------------------
 off
(1 row)

/*+Set(enable_indexscan off)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

-- No. A-8-2-3
-- Don't test PostgreSQL itself.
-- SET pg_hint_plan.enable_hint TO DEFAULT;
-- SHOW pg_hint_plan.enable_hint;
-- /*+Set(enable_indexscan off)*/
-- EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
-- No. A-8-2-4
-- Don't test PostgreSQL itself
-- SET pg_hint_plan.enable_hint TO enable;
-- SHOW pg_hint_plan.enable_hint;
----
---- No. A-8-3 original GUC parameter pg_hint_plan.debug_print
----
-- No. A-8-3-1
SET pg_hint_plan.enable_hint TO on;
SHOW pg_hint_plan.enable_hint;
 pg_hint_plan.enable_hint 
--------------------------
 on
(1 row)

SET pg_hint_plan.debug_print TO on;
SHOW pg_hint_plan.debug_print;
 pg_hint_plan.debug_print 
--------------------------
 on
(1 row)

/*+Set(enable_indexscan off)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_indexscan off)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 = 1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 = 1)
(4 rows)

-- No. A-8-3-2
SET pg_hint_plan.debug_print TO off;
SHOW pg_hint_plan.debug_print;
 pg_hint_plan.debug_print 
--------------------------
 off
(1 row)

/*+Set(enable_indexscan off)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 = 1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 = 1)
(4 rows)

-- No. A-8-3-3
SET pg_hint_plan.debug_print TO DEFAULT;
SHOW pg_hint_plan.debug_print;
 pg_hint_plan.debug_print 
--------------------------
 off
(1 row)

/*+Set(enable_indexscan off)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 = 1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 = 1)
(4 rows)

-- No. A-8-3-4
SET pg_hint_plan.debug_print TO enable;
ERROR:  invalid value for parameter "pg_hint_plan.debug_print": "enable"
HINT:  Available values: off, on, detailed, verbose.
SHOW pg_hint_plan.debug_print;
 pg_hint_plan.debug_print 
--------------------------
 off
(1 row)

----
---- No. A-8-4 original GUC parameter pg_hint_plan.parse_messages
----
SET client_min_messages TO debug5;
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
-- No. A-8-4-1
SET pg_hint_plan.parse_messages TO debug5;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  ProcessUtility
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
SHOW pg_hint_plan.parse_messages;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  ProcessUtility
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
 pg_hint_plan.parse_messages 
-----------------------------
 debug5
(1 row)

/*+Set*/SELECT 1;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Opening parenthesis is necessary.
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
 ?column? 
----------
        1
(1 row)

SET client_min_messages TO debug4;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  ProcessUtility
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
/*+Set*/SELECT 1;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
 ?column? 
----------
        1
(1 row)

-- No. A-8-4-2
SET pg_hint_plan.parse_messages TO debug4;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  ProcessUtility
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
SHOW pg_hint_plan.parse_messages;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  ProcessUtility
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
 pg_hint_plan.parse_messages 
-----------------------------
 debug4
(1 row)

/*+Set*/SELECT 1;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Opening parenthesis is necessary.
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
 ?column? 
----------
        1
(1 row)

SET client_min_messages TO debug3;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  ProcessUtility
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
/*+Set*/SELECT 1;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
 ?column? 
----------
        1
(1 row)

-- No. A-8-4-3
SET pg_hint_plan.parse_messages TO debug3;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  ProcessUtility
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
SHOW pg_hint_plan.parse_messages;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  ProcessUtility
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
 pg_hint_plan.parse_messages 
-----------------------------
 debug3
(1 row)

/*+Set*/SELECT 1;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Opening parenthesis is necessary.
DEBUG:  CommitTransactionCommand
DEBUG:  CommitTransaction
DEBUG:  name: unnamed; blockState:       STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
 ?column? 
----------
        1
(1 row)

SET client_min_messages TO debug2;
DEBUG:  StartTransactionCommand
DEBUG:  StartTransaction
DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children: 
DEBUG:  ProcessUtility
/*+Set*/SELECT 1;
 ?column? 
----------
        1
(1 row)

-- No. A-8-4-4
SET pg_hint_plan.parse_messages TO debug2;
SHOW pg_hint_plan.parse_messages;
 pg_hint_plan.parse_messages 
-----------------------------
 debug
(1 row)

/*+Set*/SELECT 1;
DEBUG:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Opening parenthesis is necessary.
 ?column? 
----------
        1
(1 row)

SET client_min_messages TO debug1;
/*+Set*/SELECT 1;
 ?column? 
----------
        1
(1 row)

-- No. A-8-4-5
SET pg_hint_plan.parse_messages TO debug1;
SHOW pg_hint_plan.parse_messages;
 pg_hint_plan.parse_messages 
-----------------------------
 debug1
(1 row)

/*+Set*/SELECT 1;
DEBUG:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Opening parenthesis is necessary.
 ?column? 
----------
        1
(1 row)

SET client_min_messages TO log;
/*+Set*/SELECT 1;
 ?column? 
----------
        1
(1 row)

-- No. A-8-4-6
SET pg_hint_plan.parse_messages TO log;
SHOW pg_hint_plan.parse_messages;
 pg_hint_plan.parse_messages 
-----------------------------
 log
(1 row)

/*+Set*/SELECT 1;
LOG:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Opening parenthesis is necessary.
 ?column? 
----------
        1
(1 row)

SET client_min_messages TO info;
/*+Set*/SELECT 1;
 ?column? 
----------
        1
(1 row)

-- No. A-8-4-7
SET pg_hint_plan.parse_messages TO info;
SHOW pg_hint_plan.parse_messages;
 pg_hint_plan.parse_messages 
-----------------------------
 info
(1 row)

/*+Set*/SELECT 1;
INFO:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Opening parenthesis is necessary.
 ?column? 
----------
        1
(1 row)

SET client_min_messages TO notice;
/*+Set*/SELECT 1;
INFO:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Opening parenthesis is necessary.
 ?column? 
----------
        1
(1 row)

-- No. A-8-4-8
SET pg_hint_plan.parse_messages TO notice;
SHOW pg_hint_plan.parse_messages;
 pg_hint_plan.parse_messages 
-----------------------------
 notice
(1 row)

/*+Set*/SELECT 1;
NOTICE:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Opening parenthesis is necessary.
 ?column? 
----------
        1
(1 row)

SET client_min_messages TO warning;
/*+Set*/SELECT 1;
 ?column? 
----------
        1
(1 row)

-- No. A-8-4-9
SET pg_hint_plan.parse_messages TO warning;
SHOW pg_hint_plan.parse_messages;
 pg_hint_plan.parse_messages 
-----------------------------
 warning
(1 row)

/*+Set*/SELECT 1;
WARNING:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Opening parenthesis is necessary.
 ?column? 
----------
        1
(1 row)

SET client_min_messages TO error;
/*+Set*/SELECT 1;
 ?column? 
----------
        1
(1 row)

-- No. A-8-4-10
SET pg_hint_plan.parse_messages TO error;
SHOW pg_hint_plan.parse_messages;
 pg_hint_plan.parse_messages 
-----------------------------
 error
(1 row)

/*+Set*/SELECT 1;
ERROR:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Opening parenthesis is necessary.
SET client_min_messages TO fatal;
/*+Set*/SELECT 1;
-- No. A-8-4-11
RESET client_min_messages;
SET pg_hint_plan.parse_messages TO DEFAULT;
SHOW pg_hint_plan.parse_messages;
 pg_hint_plan.parse_messages 
-----------------------------
 info
(1 row)

/*+Set*/SELECT 1;
INFO:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Opening parenthesis is necessary.
 ?column? 
----------
        1
(1 row)

-- No. A-8-4-12
SET pg_hint_plan.parse_messages TO fatal;
ERROR:  invalid value for parameter "pg_hint_plan.parse_messages": "fatal"
HINT:  Available values: debug5, debug4, debug3, debug2, debug1, log, info, notice, warning, error.
SHOW pg_hint_plan.parse_messages;
 pg_hint_plan.parse_messages 
-----------------------------
 info
(1 row)

-- No. A-8-4-13
SET pg_hint_plan.parse_messages TO panic;
ERROR:  invalid value for parameter "pg_hint_plan.parse_messages": "panic"
HINT:  Available values: debug5, debug4, debug3, debug2, debug1, log, info, notice, warning, error.
SHOW pg_hint_plan.parse_messages;
 pg_hint_plan.parse_messages 
-----------------------------
 info
(1 row)

-- No. A-8-4-14
SET pg_hint_plan.parse_messages TO on;
ERROR:  invalid value for parameter "pg_hint_plan.parse_messages": "on"
HINT:  Available values: debug5, debug4, debug3, debug2, debug1, log, info, notice, warning, error.
SHOW pg_hint_plan.parse_messages;
 pg_hint_plan.parse_messages 
-----------------------------
 info
(1 row)

----
---- No. A-8-5 original GUC parameter pg_hint_plan.enable_hint_table
----
INSERT INTO hint_plan.hints (norm_query_string, application_name, hints)
	VALUES (
	'EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = ?;',
	'',
	'SeqScan(t1)');
-- No. A-8-5-1
SET pg_hint_plan.enable_hint_table TO on;
SHOW pg_hint_plan.enable_hint_table;
 pg_hint_plan.enable_hint_table 
--------------------------------
 on
(1 row)

EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-8-5-2
SET pg_hint_plan.enable_hint_table TO off;
SHOW pg_hint_plan.enable_hint_table;
 pg_hint_plan.enable_hint_table 
--------------------------------
 off
(1 row)

EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

-- No. A-8-5-3
SET pg_hint_plan.enable_hint_table TO DEFAULT;
SHOW pg_hint_plan.enable_hint_table;
 pg_hint_plan.enable_hint_table 
--------------------------------
 off
(1 row)

EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

-- No. A-8-5-4
SET pg_hint_plan.enable_hint_table TO enable;
ERROR:  parameter "pg_hint_plan.enable_hint_table" requires a Boolean value
SHOW pg_hint_plan.enable_hint_table;
 pg_hint_plan.enable_hint_table 
--------------------------------
 off
(1 row)

TRUNCATE hint_plan.hints;
----
---- No. A-9-1 parse error message output
----
-- No. A-9-1-1
/*+"Set"(enable_indexscan on)*/SELECT 1;
INFO:  pg_hint_plan: hint syntax error at or near ""Set"(enable_indexscan on)"
DETAIL:  Unrecognized hint keyword ""Set"".
 ?column? 
----------
        1
(1 row)

/*+Set()(enable_indexscan on)*/SELECT 1;
INFO:  pg_hint_plan: hint syntax error at or near "Set()(enable_indexscan on)"
DETAIL:  Set hint requires name and value of GUC parameter.
INFO:  pg_hint_plan: hint syntax error at or near "(enable_indexscan on)"
DETAIL:  Unrecognized hint keyword "".
 ?column? 
----------
        1
(1 row)

/*+Set(enable_indexscan on*/SELECT 1;
INFO:  pg_hint_plan: hint syntax error at or near ""
DETAIL:  Closing parenthesis is necessary.
 ?column? 
----------
        1
(1 row)

----
---- No. A-9-3 hint state output
----
SET pg_hint_plan.debug_print TO on;
SET client_min_messages TO LOG;
-- No. A-9-3-1
/*+SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

-- No. A-9-3-2
/*+SeqScan(no_table)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
not used hint:
SeqScan(no_table)
duplication hint:
error hint:

          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

-- No. A-9-3-3
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1 AND t1.ctid = '(1,1)';
            QUERY PLAN             
-----------------------------------
 Tid Scan on t1
   TID Cond: (ctid = '(1,1)'::tid)
   Filter: (c1 = 1)
(3 rows)

/*+TidScan(t1)BitmapScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1 AND t1.ctid = '(1,1)';
INFO:  pg_hint_plan: hint syntax error at or near "TidScan(t1)BitmapScan(t1)"
DETAIL:  Conflict scan method hint.
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
TidScan(t1)
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 = 1)
   Filter: (ctid = '(1,1)'::tid)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 = 1)
(5 rows)

/*+TidScan(t1)BitmapScan(t1)IndexScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1 AND t1.ctid = '(1,1)';
INFO:  pg_hint_plan: hint syntax error at or near "TidScan(t1)BitmapScan(t1)IndexScan(t1)"
DETAIL:  Conflict scan method hint.
INFO:  pg_hint_plan: hint syntax error at or near "BitmapScan(t1)IndexScan(t1)"
DETAIL:  Conflict scan method hint.
LOG:  pg_hint_plan:
used hint:
IndexScan(t1)
not used hint:
duplication hint:
TidScan(t1)
BitmapScan(t1)
error hint:

           QUERY PLAN            
---------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
   Filter: (ctid = '(1,1)'::tid)
(3 rows)

/*+TidScan(t1)BitmapScan(t1)IndexScan(t1)SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1 AND t1.ctid = '(1,1)';
INFO:  pg_hint_plan: hint syntax error at or near "TidScan(t1)BitmapScan(t1)IndexScan(t1)SeqScan(t1)"
DETAIL:  Conflict scan method hint.
INFO:  pg_hint_plan: hint syntax error at or near "BitmapScan(t1)IndexScan(t1)SeqScan(t1)"
DETAIL:  Conflict scan method hint.
INFO:  pg_hint_plan: hint syntax error at or near "IndexScan(t1)SeqScan(t1)"
DETAIL:  Conflict scan method hint.
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
TidScan(t1)
BitmapScan(t1)
IndexScan(t1)
error hint:

                   QUERY PLAN                   
------------------------------------------------
 Seq Scan on t1
   Filter: ((c1 = 1) AND (ctid = '(1,1)'::tid))
(2 rows)

-- No. A-9-3-4
/*+Set(enable_indexscan enable)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
INFO:  parameter "enable_indexscan" requires a Boolean value
LOG:  pg_hint_plan:
used hint:
not used hint:
duplication hint:
error hint:
Set(enable_indexscan enable)

          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

----
---- No. A-10-1 hint state output
----
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 = 1;
EXPLAIN (COSTS false) EXECUTE p1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

DEALLOCATE p1;
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 < $1;
EXPLAIN (COSTS false) EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
     QUERY PLAN      
---------------------
 Seq Scan on t1
   Filter: (c1 < $1)
(2 rows)

DEALLOCATE p1;
-- No. A-10-1-1
-- No. A-10-1-2
/*+SeqScan(t1)*/
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 = 1;
/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

UPDATE pg_catalog.pg_class SET relpages = relpages WHERE relname = 't1';
/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

DEALLOCATE p1;
/*+BitmapScan(t1)*/
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 < $1;
/*+SeqScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

/*+SeqScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

/*+SeqScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

/*+SeqScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

/*+SeqScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

/*+SeqScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < $1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < $1)
(4 rows)

UPDATE pg_catalog.pg_class SET relpages = relpages WHERE relname = 't1';
/*+SeqScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < $1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < $1)
(4 rows)

DEALLOCATE p1;
-- No. A-10-1-3
-- No. A-10-1-4
/*+SeqScan(t1)*/
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 = 1;
EXPLAIN (COSTS false) EXECUTE p1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

UPDATE pg_catalog.pg_class SET relpages = relpages WHERE relname = 't1';
EXPLAIN (COSTS false) EXECUTE p1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

DEALLOCATE p1;
/*+BitmapScan(t1)*/
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 < $1;
EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < $1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < $1)
(4 rows)

UPDATE pg_catalog.pg_class SET relpages = relpages WHERE relname = 't1';
EXPLAIN (COSTS false) EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < $1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < $1)
(4 rows)

DEALLOCATE p1;
-- No. A-10-1-5
-- No. A-10-1-6
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 = 1;
/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

UPDATE pg_catalog.pg_class SET relpages = relpages WHERE relname = 't1';
/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

DEALLOCATE p1;
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 < $1;
/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

EXPLAIN (COSTS false) EXECUTE p1 (1000);
     QUERY PLAN      
---------------------
 Seq Scan on t1
   Filter: (c1 < $1)
(2 rows)

UPDATE pg_catalog.pg_class SET relpages = relpages WHERE relname = 't1';
/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) EXECUTE p1 (1000);
     QUERY PLAN      
---------------------
 Seq Scan on t1
   Filter: (c1 < $1)
(2 rows)

DEALLOCATE p1;
-- No. A-10-1-9
-- No. A-10-1-10
/*+SeqScan(t1)*/
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 = 1;
/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

UPDATE pg_catalog.pg_class SET relpages = relpages WHERE relname = 't1';
/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

DEALLOCATE p1;
/*+BitmapScan(t1)*/
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 < $1;
/*+SeqScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

/*+SeqScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

/*+SeqScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

/*+SeqScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

/*+SeqScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

/*+SeqScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < $1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < $1)
(4 rows)

UPDATE pg_catalog.pg_class SET relpages = relpages WHERE relname = 't1';
/*+SeqScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < $1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < $1)
(4 rows)

DEALLOCATE p1;
-- No. A-10-1-11
-- No. A-10-1-12
/*+SeqScan(t1)*/
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 = 1;
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

UPDATE pg_catalog.pg_class SET relpages = relpages WHERE relname = 't1';
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

     QUERY PLAN     
--------------------
 Seq Scan on t1
   Filter: (c1 = 1)
(2 rows)

DEALLOCATE p1;
/*+BitmapScan(t1)*/
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 < $1;
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < 1000)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < 1000)
(4 rows)

EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < $1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < $1)
(4 rows)

UPDATE pg_catalog.pg_class SET relpages = relpages WHERE relname = 't1';
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
LOG:  pg_hint_plan:
used hint:
BitmapScan(t1)
not used hint:
duplication hint:
error hint:

            QUERY PLAN            
----------------------------------
 Bitmap Heap Scan on t1
   Recheck Cond: (c1 < $1)
   ->  Bitmap Index Scan on t1_i1
         Index Cond: (c1 < $1)
(4 rows)

DEALLOCATE p1;
-- No. A-10-1-13
-- No. A-10-1-14
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 = 1;
/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

UPDATE pg_catalog.pg_class SET relpages = relpages WHERE relname = 't1';
/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1;
          QUERY PLAN          
------------------------------
 Index Scan using t1_i1 on t1
   Index Cond: (c1 = 1)
(2 rows)

DEALLOCATE p1;
PREPARE p1 AS SELECT * FROM s1.t1 WHERE t1.c1 < $1;
/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
      QUERY PLAN       
-----------------------
 Seq Scan on t1
   Filter: (c1 < 1000)
(2 rows)

/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
     QUERY PLAN      
---------------------
 Seq Scan on t1
   Filter: (c1 < $1)
(2 rows)

UPDATE pg_catalog.pg_class SET relpages = relpages WHERE relname = 't1';
/*+BitmapScan(t1)*/
EXPLAIN (COSTS false) CREATE TABLE test AS EXECUTE p1 (1000);
     QUERY PLAN      
---------------------
 Seq Scan on t1
   Filter: (c1 < $1)
(2 rows)

DEALLOCATE p1;
----
---- No. A-10-4 EXECUTE statement name error
----
-- No. A-10-4-1
EXECUTE p1;
ERROR:  prepared statement "p1" does not exist
SHOW pg_hint_plan.debug_print;
 pg_hint_plan.debug_print 
--------------------------
 on
(1 row)

----
---- No. A-11-5 EXECUTE statement name error
----
-- No. A-11-5-1
SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

SELECT * FROM s1.t1 WHERE t1.c1 = 1;
 c1 | c2 | c3 | c4 
----+----+----+----
  1 |  1 |  1 | 1
(1 row)

/*+Set(enable_seqscan off)*/ SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
Set(enable_seqscan off)
not used hint:
duplication hint:
error hint:

 c1 | c2 | c3 | c4 
----+----+----+----
  1 |  1 |  1 | 1
(1 row)

/*+SeqScan(t1)*/ SELECT * FROM s1.t1 WHERE t1.c1 = 1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
not used hint:
duplication hint:
error hint:

 c1 | c2 | c3 | c4 
----+----+----+----
  1 |  1 |  1 | 1
(1 row)

SELECT s.query, s.calls
  FROM public.pg_stat_statements s
  JOIN pg_catalog.pg_database d
    ON (s.dbid = d.oid)
 ORDER BY 1;
                query                 | calls 
--------------------------------------+-------
 SELECT * FROM s1.t1 WHERE t1.c1 = ?; |     3
 SELECT pg_stat_statements_reset();   |     1
(2 rows)

----
---- No. A-12-1 reset of global variable of core at the error
---- No. A-12-2 reset of global variable of original at the error
----
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
             QUERY PLAN             
------------------------------------
 Merge Join
   Merge Cond: (t1.c1 = t2.c1)
   ->  Index Scan using t1_i1 on t1
   ->  Sort
         Sort Key: t2.c1
         ->  Seq Scan on t2
(6 rows)

/*+Set(enable_seqscan off)Set(geqo_threshold 100)SeqScan(t1)MergeJoin(t1 t2)NestLoop(t1 t1)*/
PREPARE p1 AS SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
EXPLAIN (COSTS false) EXECUTE p1;
INFO:  pg_hint_plan: hint syntax error at or near "NestLoop(t1 t1)"
DETAIL:  Relation name "t1" is duplicated.
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
MergeJoin(t1 t2)
Set(enable_seqscan off)
Set(geqo_threshold 100)
not used hint:
duplication hint:
error hint:
NestLoop(t1 t1)

             QUERY PLAN             
------------------------------------
 Merge Join
   Merge Cond: (t1.c1 = t2.c1)
   ->  Sort
         Sort Key: t1.c1
         ->  Seq Scan on t1
   ->  Index Scan using t2_i1 on t2
(6 rows)

-- No. A-12-1-1
-- No. A-12-2-1
SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | on
 enable_material           | on
 enable_mergejoin          | on
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

SET pg_hint_plan.parse_messages TO error;
/*+Set(enable_seqscan off)Set(geqo_threshold 100)SeqScan(t1)MergeJoin(t1 t2)NestLoop(t1 t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
ERROR:  pg_hint_plan: hint syntax error at or near "NestLoop(t1 t1)"
DETAIL:  Relation name "t1" is duplicated.
SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | on
 enable_material           | on
 enable_mergejoin          | on
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

/*+Set(enable_seqscan off)Set(geqo_threshold 100)SeqScan(t1)MergeJoin(t1 t2)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
MergeJoin(t1 t2)
Set(enable_seqscan off)
Set(geqo_threshold 100)
not used hint:
duplication hint:
error hint:

             QUERY PLAN             
------------------------------------
 Merge Join
   Merge Cond: (t1.c1 = t2.c1)
   ->  Sort
         Sort Key: t1.c1
         ->  Seq Scan on t1
   ->  Index Scan using t2_i1 on t2
(6 rows)

-- No. A-12-1-2
-- No. A-12-2-2
SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | on
 enable_material           | on
 enable_mergejoin          | on
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

SET pg_hint_plan.parse_messages TO error;
/*+Set(enable_seqscan off)Set(geqo_threshold 100)SeqScan(t1)MergeJoin(t1 t2)NestLoop(t1 t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
ERROR:  pg_hint_plan: hint syntax error at or near "NestLoop(t1 t1)"
DETAIL:  Relation name "t1" is duplicated.
SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | on
 enable_material           | on
 enable_mergejoin          | on
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

EXPLAIN (COSTS false) EXECUTE p1;
             QUERY PLAN             
------------------------------------
 Merge Join
   Merge Cond: (t1.c1 = t2.c1)
   ->  Sort
         Sort Key: t1.c1
         ->  Seq Scan on t1
   ->  Index Scan using t2_i1 on t2
(6 rows)

-- No. A-12-1-3
-- No. A-12-2-3
SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | on
 enable_material           | on
 enable_mergejoin          | on
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

SET pg_hint_plan.parse_messages TO error;
EXPLAIN (COSTS false) EXECUTE p2;
ERROR:  prepared statement "p2" does not exist
/*+Set(enable_seqscan off)Set(geqo_threshold 100)SeqScan(t1)MergeJoin(t1 t2)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
LOG:  pg_hint_plan:
used hint:
SeqScan(t1)
MergeJoin(t1 t2)
Set(enable_seqscan off)
Set(geqo_threshold 100)
not used hint:
duplication hint:
error hint:

             QUERY PLAN             
------------------------------------
 Merge Join
   Merge Cond: (t1.c1 = t2.c1)
   ->  Sort
         Sort Key: t1.c1
         ->  Seq Scan on t1
   ->  Index Scan using t2_i1 on t2
(6 rows)

EXPLAIN (COSTS false) EXECUTE p1;
             QUERY PLAN             
------------------------------------
 Merge Join
   Merge Cond: (t1.c1 = t2.c1)
   ->  Sort
         Sort Key: t1.c1
         ->  Seq Scan on t1
   ->  Index Scan using t2_i1 on t2
(6 rows)

SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | on
 enable_material           | on
 enable_mergejoin          | on
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

-- No. A-12-1-4
-- No. A-12-2-4
SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | on
 enable_material           | on
 enable_mergejoin          | on
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

SET pg_hint_plan.parse_messages TO error;
EXPLAIN (COSTS false) EXECUTE p2;
ERROR:  prepared statement "p2" does not exist
EXPLAIN (COSTS false) EXECUTE p1;
             QUERY PLAN             
------------------------------------
 Merge Join
   Merge Cond: (t1.c1 = t2.c1)
   ->  Sort
         Sort Key: t1.c1
         ->  Seq Scan on t1
   ->  Index Scan using t2_i1 on t2
(6 rows)

SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | on
 enable_material           | on
 enable_mergejoin          | on
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

DEALLOCATE p1;
SET pg_hint_plan.parse_messages TO LOG;
----
---- No. A-12-3 effective range of the hint
----
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
             QUERY PLAN             
------------------------------------
 Merge Join
   Merge Cond: (t1.c1 = t2.c1)
   ->  Index Scan using t1_i1 on t1
   ->  Sort
         Sort Key: t2.c1
         ->  Seq Scan on t2
(6 rows)

-- No. A-12-3-1
SET enable_indexscan TO off;
SET enable_mergejoin TO off;
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
          QUERY PLAN          
------------------------------
 Hash Join
   Hash Cond: (t1.c1 = t2.c1)
   ->  Seq Scan on t1
   ->  Hash
         ->  Seq Scan on t2
(5 rows)

SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | off
 enable_material           | on
 enable_mergejoin          | off
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

/*+Set(enable_indexscan on)Set(geqo_threshold 100)IndexScan(t2)MergeJoin(t1 t2)Leading(t2 t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
LOG:  pg_hint_plan:
used hint:
IndexScan(t2)
MergeJoin(t1 t2)
Leading(t2 t1)
Set(enable_indexscan on)
Set(geqo_threshold 100)
not used hint:
duplication hint:
error hint:

             QUERY PLAN             
------------------------------------
 Merge Join
   Merge Cond: (t1.c1 = t2.c1)
   ->  Index Scan using t1_i1 on t1
   ->  Index Scan using t2_i1 on t2
(4 rows)

SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | off
 enable_material           | on
 enable_mergejoin          | off
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
          QUERY PLAN          
------------------------------
 Hash Join
   Hash Cond: (t1.c1 = t2.c1)
   ->  Seq Scan on t1
   ->  Hash
         ->  Seq Scan on t2
(5 rows)

-- No. A-12-3-2
SET enable_indexscan TO off;
SET enable_mergejoin TO off;
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
          QUERY PLAN          
------------------------------
 Hash Join
   Hash Cond: (t1.c1 = t2.c1)
   ->  Seq Scan on t1
   ->  Hash
         ->  Seq Scan on t2
(5 rows)

SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | off
 enable_material           | on
 enable_mergejoin          | off
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

BEGIN;
/*+Set(enable_indexscan on)Set(geqo_threshold 100)IndexScan(t2)MergeJoin(t1 t2)Leading(t2 t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
LOG:  pg_hint_plan:
used hint:
IndexScan(t2)
MergeJoin(t1 t2)
Leading(t2 t1)
Set(enable_indexscan on)
Set(geqo_threshold 100)
not used hint:
duplication hint:
error hint:

             QUERY PLAN             
------------------------------------
 Merge Join
   Merge Cond: (t1.c1 = t2.c1)
   ->  Index Scan using t1_i1 on t1
   ->  Index Scan using t2_i1 on t2
(4 rows)

COMMIT;
BEGIN;
SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | off
 enable_material           | on
 enable_mergejoin          | off
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
          QUERY PLAN          
------------------------------
 Hash Join
   Hash Cond: (t1.c1 = t2.c1)
   ->  Seq Scan on t1
   ->  Hash
         ->  Seq Scan on t2
(5 rows)

COMMIT;
-- No. A-12-3-3
SET enable_indexscan TO off;
SET enable_mergejoin TO off;
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
          QUERY PLAN          
------------------------------
 Hash Join
   Hash Cond: (t1.c1 = t2.c1)
   ->  Seq Scan on t1
   ->  Hash
         ->  Seq Scan on t2
(5 rows)

SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | off
 enable_material           | on
 enable_mergejoin          | off
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | log
(30 rows)

/*+Set(enable_indexscan on)Set(geqo_threshold 100)IndexScan(t2)MergeJoin(t1 t2)Leading(t2 t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
LOG:  pg_hint_plan:
used hint:
IndexScan(t2)
MergeJoin(t1 t2)
Leading(t2 t1)
Set(enable_indexscan on)
Set(geqo_threshold 100)
not used hint:
duplication hint:
error hint:

             QUERY PLAN             
------------------------------------
 Merge Join
   Merge Cond: (t1.c1 = t2.c1)
   ->  Index Scan using t1_i1 on t1
   ->  Index Scan using t2_i1 on t2
(4 rows)

\connect
SET enable_indexscan TO off;
SET enable_mergejoin TO off;
LOAD 'pg_hint_plan';
SELECT name, setting FROM settings;
           name            |  setting  
---------------------------+-----------
 geqo                      | on
 geqo_effort               | 5
 geqo_generations          | 0
 geqo_pool_size            | 0
 geqo_seed                 | 0
 geqo_selection_bias       | 2
 geqo_threshold            | 12
 constraint_exclusion      | partition
 cursor_tuple_fraction     | 0.1
 default_statistics_target | 100
 from_collapse_limit       | 8
 join_collapse_limit       | 8
 cpu_index_tuple_cost      | 0.005
 cpu_operator_cost         | 0.0025
 cpu_tuple_cost            | 0.01
 effective_cache_size      | 16384
 random_page_cost          | 4
 seq_page_cost             | 1
 enable_bitmapscan         | on
 enable_hashagg            | on
 enable_hashjoin           | on
 enable_indexonlyscan      | on
 enable_indexscan          | off
 enable_material           | on
 enable_mergejoin          | off
 enable_nestloop           | on
 enable_seqscan            | on
 enable_sort               | on
 enable_tidscan            | on
 client_min_messages       | notice
(30 rows)

EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
          QUERY PLAN          
------------------------------
 Hash Join
   Hash Cond: (t1.c1 = t2.c1)
   ->  Seq Scan on t1
   ->  Hash
         ->  Seq Scan on t2
(5 rows)

SET pg_hint_plan.enable_hint TO on;
SET pg_hint_plan.debug_print TO on;
SET client_min_messages TO LOG;
SET search_path TO public;
RESET enable_indexscan;
RESET enable_mergejoin;
----
---- No. A-13 call planner recursively
----
CREATE OR REPLACE FUNCTION nested_planner(cnt int) RETURNS int AS $$
DECLARE
    new_cnt int;
BEGIN
    RAISE NOTICE 'nested_planner(%)', cnt;

    /* 再帰終了の判断 */
    IF cnt <= 1 THEN
        RETURN 0;
    END IF;

	SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1) INTO new_cnt
	  FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1;

    RETURN new_cnt;
END;
$$ LANGUAGE plpgsql IMMUTABLE;
----
---- No. A-13-2 use hint of main query
----
--No.13-2-1
EXPLAIN (COSTS false) SELECT nested_planner(1) FROM s1.t1 t_1 ORDER BY t_1.c1;
NOTICE:  nested_planner(1)
              QUERY PLAN               
---------------------------------------
 Index Only Scan using t1_i1 on t1 t_1
(1 row)

/*+SeqScan(t_1)*/
EXPLAIN (COSTS false) SELECT nested_planner(1) FROM s1.t1 t_1 ORDER BY t_1.c1;
NOTICE:  nested_planner(1)
LOG:  pg_hint_plan:
used hint:
SeqScan(t_1)
not used hint:
duplication hint:
error hint:

        QUERY PLAN        
--------------------------
 Sort
   Sort Key: c1
   ->  Seq Scan on t1 t_1
(3 rows)

----
---- No. A-13-3 output number of times of debugging log
----
--No.13-3-1
EXPLAIN (COSTS false) SELECT nested_planner(1) FROM s1.t1 t_1 ORDER BY t_1.c1;
NOTICE:  nested_planner(1)
              QUERY PLAN               
---------------------------------------
 Index Only Scan using t1_i1 on t1 t_1
(1 row)

/*+SeqScan(t_2)*/
EXPLAIN (COSTS false) SELECT nested_planner(1) FROM s1.t1 t_1 ORDER BY t_1.c1;
NOTICE:  nested_planner(1)
LOG:  pg_hint_plan:
used hint:
not used hint:
SeqScan(t_2)
duplication hint:
error hint:

              QUERY PLAN               
---------------------------------------
 Index Only Scan using t1_i1 on t1 t_1
(1 row)

--No.13-3-2
EXPLAIN (COSTS false) SELECT nested_planner(2) FROM s1.t1 t_1 ORDER BY t_1.c1;
NOTICE:  nested_planner(2)
NOTICE:  nested_planner(1)
CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
LOG:  pg_hint_plan:
used hint:
IndexScan(t_1)
not used hint:
duplication hint:
error hint:

CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
              QUERY PLAN               
---------------------------------------
 Index Only Scan using t1_i1 on t1 t_1
(1 row)

/*+SeqScan(t_2)*/
EXPLAIN (COSTS false) SELECT nested_planner(2) FROM s1.t1 t_1 ORDER BY t_1.c1;
NOTICE:  nested_planner(2)
NOTICE:  nested_planner(1)
CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
LOG:  pg_hint_plan:
used hint:
IndexScan(t_1)
not used hint:
duplication hint:
error hint:

CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
LOG:  pg_hint_plan:
used hint:
not used hint:
SeqScan(t_2)
duplication hint:
error hint:

              QUERY PLAN               
---------------------------------------
 Index Only Scan using t1_i1 on t1 t_1
(1 row)

--No.13-3-3
--
-- Redefine not to use cached plan
--
CREATE OR REPLACE FUNCTION nested_planner(cnt int) RETURNS int AS $$
DECLARE
    new_cnt int;
BEGIN
    RAISE NOTICE 'nested_planner(%)', cnt;

    /* 再帰終了の判断 */
    IF cnt <= 1 THEN
        RETURN 0;
    END IF;

	SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1) INTO new_cnt
	  FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1;

    RETURN new_cnt;
END;
$$ LANGUAGE plpgsql IMMUTABLE;
EXPLAIN (COSTS false) SELECT nested_planner(5) FROM s1.t1 t_1 ORDER BY t_1.c1;
NOTICE:  nested_planner(5)
NOTICE:  nested_planner(4)
CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
NOTICE:  nested_planner(3)
CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
NOTICE:  nested_planner(2)
CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
NOTICE:  nested_planner(1)
CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
LOG:  pg_hint_plan:
no hint
CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
LOG:  pg_hint_plan:
no hint
CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
LOG:  pg_hint_plan:
used hint:
IndexScan(t_1)
not used hint:
duplication hint:
error hint:

CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
LOG:  pg_hint_plan:
used hint:
IndexScan(t_1)
not used hint:
duplication hint:
error hint:

CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
              QUERY PLAN               
---------------------------------------
 Index Only Scan using t1_i1 on t1 t_1
(1 row)

/*+SeqScan(t_2)*/
EXPLAIN (COSTS false) SELECT nested_planner(5) FROM s1.t1 t_1 ORDER BY t_1.c1;
NOTICE:  nested_planner(5)
NOTICE:  nested_planner(4)
CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
NOTICE:  nested_planner(3)
CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
NOTICE:  nested_planner(2)
CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
NOTICE:  nested_planner(1)
CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
LOG:  pg_hint_plan:
used hint:
IndexScan(t_1)
not used hint:
duplication hint:
error hint:

CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
LOG:  pg_hint_plan:
used hint:
IndexScan(t_1)
not used hint:
duplication hint:
error hint:

CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
LOG:  pg_hint_plan:
used hint:
IndexScan(t_1)
not used hint:
duplication hint:
error hint:

CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
LOG:  pg_hint_plan:
used hint:
IndexScan(t_1)
not used hint:
duplication hint:
error hint:

CONTEXT:  SQL statement "SELECT /*+ IndexScan(t_1) */ nested_planner(cnt - 1)                 FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1"
PL/pgSQL function nested_planner(integer) line 12 at SQL statement
LOG:  pg_hint_plan:
used hint:
not used hint:
SeqScan(t_2)
duplication hint:
error hint:

              QUERY PLAN               
---------------------------------------
 Index Only Scan using t1_i1 on t1 t_1
(1 row)

----
---- No. A-13-4 output of debugging log on hint status
----
CREATE OR REPLACE FUNCTION recall_planner() RETURNS int AS $$
	SELECT /*+ IndexScan(t_1) */t_1.c1
	  FROM s1.t1 t_1
	  JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
	 ORDER BY t_1.c1 LIMIT 1;
$$ LANGUAGE SQL IMMUTABLE;
--No.13-4-1
/*+HashJoin(t_1 t_2)*/
EXPLAIN (COSTS false)
 SELECT recall_planner() FROM s1.t1 t_1
   JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
  ORDER BY t_1.c1;
LOG:  pg_hint_plan:
used hint:
HashJoin(t_1 t_2)
not used hint:
duplication hint:
error hint:

CONTEXT:  SQL function "recall_planner" during startup
LOG:  pg_hint_plan:
used hint:
HashJoin(t_1 t_2)
not used hint:
duplication hint:
error hint:

              QUERY PLAN              
--------------------------------------
 Sort
   Sort Key: t_1.c1
   ->  Hash Join
         Hash Cond: (t_1.c1 = t_2.c1)
         ->  Seq Scan on t1 t_1
         ->  Hash
               ->  Seq Scan on t2 t_2
(7 rows)

--No.13-4-2
/*+HashJoin(st_1 st_2)*/
EXPLAIN (COSTS false)
 SELECT recall_planner() FROM s1.t1 st_1
   JOIN s1.t2 st_2 ON (st_1.c1 = st_2.c1)
  ORDER BY st_1.c1;
LOG:  pg_hint_plan:
used hint:
not used hint:
HashJoin(st_1 st_2)
duplication hint:
error hint:

CONTEXT:  SQL function "recall_planner" during startup
LOG:  pg_hint_plan:
used hint:
HashJoin(st_1 st_2)
not used hint:
duplication hint:
error hint:

               QUERY PLAN               
----------------------------------------
 Sort
   Sort Key: st_1.c1
   ->  Hash Join
         Hash Cond: (st_1.c1 = st_2.c1)
         ->  Seq Scan on t1 st_1
         ->  Hash
               ->  Seq Scan on t2 st_2
(7 rows)

--No.13-4-3
/*+HashJoin(t_1 t_2)*/
EXPLAIN (COSTS false)
 SELECT recall_planner() FROM s1.t1 st_1
   JOIN s1.t2 st_2 ON (st_1.c1 = st_2.c1)
  ORDER BY st_1.c1;
LOG:  pg_hint_plan:
used hint:
HashJoin(t_1 t_2)
not used hint:
duplication hint:
error hint:

CONTEXT:  SQL function "recall_planner" during startup
LOG:  pg_hint_plan:
used hint:
not used hint:
HashJoin(t_1 t_2)
duplication hint:
error hint:

                  QUERY PLAN                  
----------------------------------------------
 Merge Join
   Merge Cond: (st_1.c1 = st_2.c1)
   ->  Index Only Scan using t1_i1 on t1 st_1
   ->  Sort
         Sort Key: st_2.c1
         ->  Seq Scan on t2 st_2
(6 rows)

--No.13-4-4
/*+HashJoin(st_1 st_2)*/
EXPLAIN (COSTS false)
 SELECT recall_planner() FROM s1.t1 t_1
   JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
  ORDER BY t_1.c1;
LOG:  pg_hint_plan:
used hint:
not used hint:
HashJoin(st_1 st_2)
duplication hint:
error hint:

CONTEXT:  SQL function "recall_planner" during startup
LOG:  pg_hint_plan:
used hint:
not used hint:
HashJoin(st_1 st_2)
duplication hint:
error hint:

                 QUERY PLAN                  
---------------------------------------------
 Merge Join
   Merge Cond: (t_1.c1 = t_2.c1)
   ->  Index Only Scan using t1_i1 on t1 t_1
   ->  Sort
         Sort Key: t_2.c1
         ->  Seq Scan on t2 t_2
(6 rows)

--No.13-4-5
/*+HashJoin(t_1 t_1)*/
EXPLAIN (COSTS false)
 SELECT recall_planner() FROM s1.t1 t_1
  ORDER BY t_1.c1;
INFO:  pg_hint_plan: hint syntax error at or near "HashJoin(t_1 t_1)"
DETAIL:  Relation name "t_1" is duplicated.
CONTEXT:  SQL function "recall_planner" during startup
LOG:  pg_hint_plan:
used hint:
not used hint:
duplication hint:
error hint:
HashJoin(t_1 t_1)

CONTEXT:  SQL function "recall_planner" during startup
LOG:  pg_hint_plan:
used hint:
not used hint:
HashJoin(t_1 t_1)
duplication hint:
error hint:

              QUERY PLAN               
---------------------------------------
 Index Only Scan using t1_i1 on t1 t_1
(1 row)

--No.13-4-6
CREATE OR REPLACE FUNCTION recall_planner_one_t() RETURNS int AS $$
	SELECT /*+ IndexScan(t_1) */t_1.c1
	  FROM s1.t1 t_1
	 ORDER BY t_1.c1 LIMIT 1;
$$ LANGUAGE SQL IMMUTABLE;
EXPLAIN (COSTS false)
 SELECT recall_planner_one_t() FROM s1.t1 t_1
   JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
  ORDER BY t_1.c1;
                 QUERY PLAN                  
---------------------------------------------
 Merge Join
   Merge Cond: (t_1.c1 = t_2.c1)
   ->  Index Only Scan using t1_i1 on t1 t_1
   ->  Sort
         Sort Key: t_2.c1
         ->  Seq Scan on t2 t_2
(6 rows)

/*+HashJoin(t_1 t_1)*/
EXPLAIN (COSTS false)
 SELECT recall_planner_one_t() FROM s1.t1 t_1
   JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
  ORDER BY t_1.c1;
LOG:  pg_hint_plan:
used hint:
not used hint:
HashJoin(t_1 t_1)
duplication hint:
error hint:

CONTEXT:  SQL function "recall_planner_one_t" during startup
INFO:  pg_hint_plan: hint syntax error at or near "HashJoin(t_1 t_1)"
DETAIL:  Relation name "t_1" is duplicated.
LOG:  pg_hint_plan:
used hint:
not used hint:
duplication hint:
error hint:
HashJoin(t_1 t_1)

                 QUERY PLAN                  
---------------------------------------------
 Merge Join
   Merge Cond: (t_1.c1 = t_2.c1)
   ->  Index Only Scan using t1_i1 on t1 t_1
   ->  Sort
         Sort Key: t_2.c1
         ->  Seq Scan on t2 t_2
(6 rows)

DROP FUNCTION recall_planner_one_t(int);
ERROR:  function recall_planner_one_t(integer) does not exist
--No.13-4-7
/*+HashJoin(t_1 t_1)*/
EXPLAIN (COSTS false)
 SELECT recall_planner() FROM s1.t1 t_1
   JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
  ORDER BY t_1.c1;
INFO:  pg_hint_plan: hint syntax error at or near "HashJoin(t_1 t_1)"
DETAIL:  Relation name "t_1" is duplicated.
CONTEXT:  SQL function "recall_planner" during startup
LOG:  pg_hint_plan:
used hint:
not used hint:
duplication hint:
error hint:
HashJoin(t_1 t_1)

CONTEXT:  SQL function "recall_planner" during startup
INFO:  pg_hint_plan: hint syntax error at or near "HashJoin(t_1 t_1)"
DETAIL:  Relation name "t_1" is duplicated.
LOG:  pg_hint_plan:
used hint:
not used hint:
duplication hint:
error hint:
HashJoin(t_1 t_1)

                 QUERY PLAN                  
---------------------------------------------
 Merge Join
   Merge Cond: (t_1.c1 = t_2.c1)
   ->  Index Only Scan using t1_i1 on t1 t_1
   ->  Sort
         Sort Key: t_2.c1
         ->  Seq Scan on t2 t_2
(6 rows)

--No.13-4-8
/*+MergeJoin(t_1 t_2)HashJoin(t_1 t_2)*/
EXPLAIN (COSTS false)
 SELECT recall_planner() FROM s1.t1 t_1
   JOIN s1.t2 t_2 ON (t_1.c1 = t_2.c1)
  ORDER BY t_1.c1;
INFO:  pg_hint_plan: hint syntax error at or near "MergeJoin(t_1 t_2)HashJoin(t_1 t_2)"
DETAIL:  Conflict join method hint.
INFO:  pg_hint_plan: hint syntax error at or near "MergeJoin(t_1 t_2)HashJoin(t_1 t_2)"
DETAIL:  Conflict join method hint.
CONTEXT:  SQL function "recall_planner" during startup
LOG:  pg_hint_plan:
used hint:
HashJoin(t_1 t_2)
not used hint:
duplication hint:
MergeJoin(t_1 t_2)
error hint:

CONTEXT:  SQL function "recall_planner" during startup
LOG:  pg_hint_plan:
used hint:
HashJoin(t_1 t_2)
not used hint:
duplication hint:
MergeJoin(t_1 t_2)
error hint:

              QUERY PLAN              
--------------------------------------
 Sort
   Sort Key: t_1.c1
   ->  Hash Join
         Hash Cond: (t_1.c1 = t_2.c1)
         ->  Seq Scan on t1 t_1
         ->  Hash
               ->  Seq Scan on t2 t_2
(7 rows)

