#
# Init section
#
--disable_warnings
drop table if exists t1;
--enable_warnings

#
# Simple IF tests
#

select IF(0,"ERROR","this"),IF(1,"is","ERROR"),IF(NULL,"ERROR","a"),IF(1,2,3)|0,IF(1,2.0,3.0)+0 ;

#
# Test of IF and case-sensitiveness
#
CREATE TABLE t1 (st varchar(255) NOT NULL, u int(11) NOT NULL);
INSERT INTO t1 VALUES ('a',1),('A',1),('aa',1),('AA',1),('a',1),('aaa',0),('BBB',0);
select if(1,st,st) s from t1 order by s;
select if(u=1,st,st) s from t1 order by s;
select if(u=1,binary st,st) s from t1 order by s;
select if(u=1,st,binary st) s from t1 where st like "%a%" order by s;
analyze table t1;
explain select if(u=1,st,binary st) s from t1 where st like "%a%" order by s;

#
# NULLIF test
#
select nullif(u, 1) from t1;
explain select nullif(u, 1) from t1;
drop table t1;
select nullif(1,'test');

#
# Bug 2629
#
select NULLIF(NULL,NULL), NULLIF(NULL,1), NULLIF(NULL,1.0), NULLIF(NULL,"test");
select NULLIF(1,NULL), NULLIF(1.0, NULL), NULLIF("test", NULL);

#
# Problem with IF()
#

create table t1 (num  double(12,2));
insert into t1 values (144.54);
select sum(if(num is null,0.00,num)) from t1;
drop table t1;
create table t1 (x int, y int);
insert into t1 values (0,6),(10,16),(20,26),(30,10),(40,46),(50,56);
select min(if(y -x > 5,y,NULL)), max(if(y - x > 5,y,NULL)) from t1;
drop table t1;

#
# BUG#3987
#
create table t1 (a int);
insert t1 values (1),(2);
--source include/turn_off_only_full_group_by.inc
select if(1>2,a,avg(a)) from t1;
--source include/restore_sql_mode_after_turn_off_only_full_group_by.inc
drop table t1;

#
# Bug #5595  NULLIF() IS NULL returns false if NULLIF() returns NULL
#
SELECT NULLIF(5,5) IS NULL, NULLIF(5,5) IS NOT NULL;

#
# Bug #9669 Ordering on IF function with FROM_UNIXTIME function fails
#
CREATE TABLE `t1` (
  `id` int(11) NOT NULL ,
  `date` int(10) default NULL,
  `text` varchar(32) NOT NULL
);
INSERT INTO t1 VALUES (1,1110000000,'Day 1'),(2,1111000000,'Day 2'),(3,1112000000,'Day 3');
SELECT id, IF(date IS NULL, '-', FROM_UNIXTIME(date, '%d-%m-%Y')) AS date_ord, text FROM t1 ORDER BY date_ord ASC;
SELECT id, IF(date IS NULL, '-', FROM_UNIXTIME(date, '%d-%m-%Y')) AS date_ord, text FROM t1 ORDER BY date_ord DESC;
DROP TABLE t1;


#
# Test for bug #11142: evaluation of NULLIF when the first argument is NULL
#

CREATE TABLE t1 (a CHAR(10));
INSERT INTO t1 VALUES ('aaa'), (NULL), (''), ('bbb');

SELECT a, NULLIF(a,'') FROM t1;
SELECT a, NULLIF(a,'') FROM t1 WHERE NULLIF(a,'') IS NULL;

DROP TABLE t1;

# End of 4.1 tests

#
# Bug #16272 IF function with decimal args can produce wrong result
#
create table t1 (f1 int, f2 int);
insert into t1 values(1,1),(0,0);
--source include/turn_off_only_full_group_by.inc
select f1, f2, if(f1, 40.0, 5.00) from t1 group by f1 order by f2;
--source include/restore_sql_mode_after_turn_off_only_full_group_by.inc
drop table t1;

#
# Bug#24532 (The return data type of IS TRUE is different from similar
# operations)
#
# IF(x, unsigned, unsigned) should be unsigned.
#

select if(0, 18446744073709551610, 18446744073709551610);


#
# Bug #37662: nested if() inside sum() is parsed in exponential time
#

CREATE TABLE t1(a DECIMAL(10,3));

# check : should be fast. more than few secs means failure.
SELECT t1.a,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,
 IF((ROUND(t1.a,2)=1), 2,0)))))))))))))))))))))))))))))) + 1
FROM t1;

DROP TABLE t1;

#
# Bug #40761: Assert on sum func on IF(..., CAST(longtext AS UNSIGNED), signed)
#             (was: LEFT JOIN on inline view crashes server)
#

CREATE TABLE t1 (c LONGTEXT);
INSERT INTO t1 VALUES(1), (2), (3), (4), ('12345678901234567890');

SELECT * FROM (SELECT MAX(IF(1, CAST(c AS UNSIGNED), 0)) FROM t1) AS te;
SELECT * FROM (SELECT MAX(IFNULL(CAST(c AS UNSIGNED), 0)) FROM t1) AS te;

DROP TABLE t1;


--echo End of 5.0 tests


--echo #
--echo # Bug#55077: Assertion failed: width > 0 && to != ((void *)0), file .\dtoa.c
--echo # 

CREATE TABLE t1 (a LONGBLOB, b DOUBLE);
INSERT INTO t1 VALUES (NULL, 0), (NULL, 1);

SELECT IF(b, (SELECT a FROM t1 LIMIT 1), b) c FROM t1 GROUP BY c;

DROP TABLE t1;

--echo #
--echo # Bug#12620084
--echo # ASSERTION WHEN CHECKING FIELD_TYPES[FIELD_POS] AND IT'S MYSQL_TYPE_NULL
--echo #

SELECT if(0, (SELECT min('hello')), NULL);
SELECT if(1, (SELECT min('hello')), NULL);
SELECT if(0, NULL, (SELECT min('hello')));
SELECT if(1, NULL, (SELECT min('hello')));

--echo #
--echo # Bug#12532830 
--echo # SIGFPE OR ASSERTION (PRECISION <= ((9 * 9) - 8*2)) && (DEC <= 30)
--echo #

let $nines= 9999999999999999999999999999999999999;
eval select
sum(distinct(if('a',
                (select adddate(elt(convert($nines,decimal(64,0)),count(*)),
                                interval 1 day))
                , .1))) as foo;

--echo #
--echo # Bug#22148586 IF(BOOL, DATE STR, DATE STR) THROWS ERROR IN UPDATE
--echo #

CREATE TABLE t1(c1 INT);
INSERT INTO t1 VALUES(1);

UPDATE t1 SET c1 = 2 WHERE IF(true, '2015-01-01', '2015-01-01') IS NOT NULL;

DROP TABLE t1;

--echo #
--echo # Bug#24492965 ERROR RESULTS FROM CALCULATION
--echo #

CREATE TABLE test_grids_1 (
  unq_id int(11) NOT NULL DEFAULT '0',
  var_fld int(11) DEFAULT '0'
);

INSERT INTO test_grids_1 VALUES
  (1,4500),
  (2,6000);

CREATE TABLE test_grid_dtl_1 (
  dtl_id int(11) NOT NULL DEFAULT '0',
  unq_id int(11) DEFAULT '0'
);

INSERT INTO test_grid_dtl_1 VALUES
  (1,1),
  (2,1),
  (3,2);

SELECT g.calc_var, g.if_var, g.case_var
FROM
  (
  SELECT unq_id,
    IF ( var_fld  > 5000, (     1 / var_fld ) , 5000 ) calc_var,
    IF ( var_fld  > 5000, ( 00001 / var_fld ) , 5000 ) if_var,
    CASE  var_fld  > 5000 WHEN TRUE THEN ( 1 / var_fld ) ELSE 5000 END case_var
  FROM
    test_grids_1
  ) g
  JOIN
    test_grid_dtl_1 d USING (unq_id)
ORDER BY 1
;

DROP TABLE test_grids_1, test_grid_dtl_1;

--echo # Bug#25669606: regression: assertion failed: !is_temporal()

DO NULLIF(CAST(DATABASE() AS TIME), 1);
DO NULLIF(CAST(DATABASE() AS DATE), 1);
DO NULLIF(CAST(DATABASE() AS DATETIME), 1);

--echo #
--echo # Bug#28007237  NULLIF returns boolean in context of JSON_ARRAYAGG and JSON_OBJECTAGG's value
--echo #

SELECT NULLIF(1,2);
SELECT JSON_ARRAYAGG(NULLIF(1,2));
SELECT JSON_ARRAYAGG(CASE WHEN 1 = 2 THEN NULL ELSE 1 END);
SELECT NULLIF(true,false);
SELECT JSON_ARRAYAGG(NULLIF(true,false));
SELECT JSON_ARRAYAGG(CASE WHEN true = false THEN NULL ELSE true END);