drop table if exists t1, t2;
CREATE TABLE t1(session_id  char(9) NOT NULL);
INSERT INTO t1 VALUES ("abc");
SELECT * FROM t1;
session_id
abc
prepare st_1180 from 'SELECT * FROM t1 WHERE ?="1111" and session_id = "abc"';
set @arg1= 'abc';
execute st_1180 using @arg1;
session_id
set @arg1= '1111';
execute st_1180 using @arg1;
session_id
abc
set @arg1= 'abc';
execute st_1180 using @arg1;
session_id
drop table t1;
create table t1 (
c_01 char(6), c_02 integer, c_03 real, c_04 int(3), c_05 varchar(20),
c_06 date,    c_07 char(1), c_08 real, c_09 int(11), c_10 time,
c_11 char(6), c_12 integer, c_13 real, c_14 int(3), c_15 varchar(20),
c_16 date,    c_17 char(1), c_18 real, c_19 int(11), c_20 text);
prepare st_1644 from 'insert into t1 values ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)';
set @arg01= 'row_1';
set @arg02= 1;
set @arg03= 1.1;
set @arg04= 111;
set @arg05= 'row_one';
set @arg06= '2004-10-12';
set @arg07= '1';
set @arg08= 1.1;
set @arg09= '100100100';
set @arg10= '12:34:56';
set @arg11= 'row_1';
set @arg12= 1;
set @arg13= 1.1;
set @arg14= 111;
set @arg15= 'row_one';
set @arg16= '2004-10-12';
set @arg17= '1';
set @arg18= 1.1;
set @arg19= '100100100';
set @arg20= '12:34:56';
execute st_1644 using @arg01, @arg02, @arg03, @arg04, @arg05, @arg06, @arg07, @arg08, @arg09, @arg10,
@arg11, @arg12, @arg13, @arg14, @arg15, @arg16, @arg17, @arg18, @arg19, @arg20;
set @arg01= NULL;
set @arg02= NULL;
set @arg03= NULL;
set @arg04= NULL;
set @arg05= NULL;
set @arg06= NULL;
set @arg07= NULL;
set @arg08= NULL;
set @arg09= NULL;
set @arg10= NULL;
set @arg11= NULL;
set @arg12= NULL;
set @arg13= NULL;
set @arg14= NULL;
set @arg15= NULL;
set @arg16= NULL;
set @arg17= NULL;
set @arg18= NULL;
set @arg19= NULL;
set @arg20= NULL;
execute st_1644 using @arg01, @arg02, @arg03, @arg04, @arg05, @arg06, @arg07, @arg08, @arg09, @arg10,
@arg11, @arg12, @arg13, @arg14, @arg15, @arg16, @arg17, @arg18, @arg19, @arg20;
set @arg01= 'row_3';
set @arg02= 3;
set @arg03= 3.3;
set @arg04= 333;
set @arg05= 'row_three';
set @arg06= '2004-10-12';
set @arg07= '3';
set @arg08= 3.3;
set @arg09= '300300300';
set @arg10= '12:34:56';
set @arg11= 'row_3';
set @arg12= 3;
set @arg13= 3.3;
set @arg14= 333;
set @arg15= 'row_three';
set @arg16= '2004-10-12';
set @arg17= '3';
set @arg18= 3.3;
set @arg19= '300300300';
set @arg20= '12:34:56';
execute st_1644 using @arg01, @arg02, @arg03, @arg04, @arg05, @arg06, @arg07, @arg08, @arg09, @arg10,
@arg11, @arg12, @arg13, @arg14, @arg15, @arg16, @arg17, @arg18, @arg19, @arg20;
select * from t1;
c_01	c_02	c_03	c_04	c_05	c_06	c_07	c_08	c_09	c_10	c_11	c_12	c_13	c_14	c_15	c_16	c_17	c_18	c_19	c_20
row_1	1	1.1	111	row_one	2004-10-12	1	1.1	100100100	12:34:56	row_1	1	1.1	111	row_one	2004-10-12	1	1.1	100100100	12:34:56
NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
row_3	3	3.3	333	row_three	2004-10-12	3	3.3	300300300	12:34:56	row_3	3	3.3	333	row_three	2004-10-12	3	3.3	300300300	12:34:56
drop table t1;
create table t1(
cola varchar(50) not null,
colb varchar(8) not null,
colc varchar(12) not null,
cold varchar(2) not null,
primary key (cola, colb, cold));
create table t2(
cola varchar(50) not null,
colb varchar(8) not null,
colc varchar(2) not null,
cold float,
primary key (cold));
insert into t1 values ('aaaa', 'yyyy', 'yyyy-dd-mm', 'R');
insert into t2 values ('aaaa', 'yyyy', 'R', 203), ('bbbb', 'zzzz', 'C', 201);
prepare st_1676 from 'select a.cola, a.colb, a.cold from t1 a, t2 b where a.cola = ? and a.colb = ? and a.cold = ? and b.cola = a.cola and b.colb = a.colb and b.colc = a.cold';
set @arg0= "aaaa";
set @arg1= "yyyy";
set @arg2= "R";
execute st_1676 using @arg0, @arg1, @arg2;
cola	colb	cold
aaaa	yyyy	R
drop table t1, t2;
create table t1 (a int primary key);
insert into t1 values (1);
explain select * from t1 where 3 in (select (1+1) union select 1);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
2	DEPENDENT SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
3	DEPENDENT UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	
select * from t1 where 3 in (select (1+1) union select 1);
a
prepare st_18492 from 'select * from t1 where 3 in (select (1+1) union select 1)';
execute st_18492;
a
drop table t1;
