1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549
|
drop table if exists t1;
select floor(5.5),floor(-5.5);
floor(5.5) floor(-5.5)
5 -6
explain extended select floor(5.5),floor(-5.5);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select floor(5.5) AS `floor(5.5)`,floor(-(5.5)) AS `floor(-5.5)`
select ceiling(5.5),ceiling(-5.5);
ceiling(5.5) ceiling(-5.5)
6 -5
explain extended select ceiling(5.5),ceiling(-5.5);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select ceiling(5.5) AS `ceiling(5.5)`,ceiling(-(5.5)) AS `ceiling(-5.5)`
select truncate(52.64,1),truncate(52.64,2),truncate(52.64,-1),truncate(52.64,-2), truncate(-52.64,1),truncate(-52.64,-1);
truncate(52.64,1) truncate(52.64,2) truncate(52.64,-1) truncate(52.64,-2) truncate(-52.64,1) truncate(-52.64,-1)
52.6 52.64 50 0 -52.6 -50
explain extended select truncate(52.64,1),truncate(52.64,2),truncate(52.64,-1),truncate(52.64,-2), truncate(-52.64,1),truncate(-52.64,-1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select truncate(52.64,1) AS `truncate(52.64,1)`,truncate(52.64,2) AS `truncate(52.64,2)`,truncate(52.64,-(1)) AS `truncate(52.64,-1)`,truncate(52.64,-(2)) AS `truncate(52.64,-2)`,truncate(-(52.64),1) AS `truncate(-52.64,1)`,truncate(-(52.64),-(1)) AS `truncate(-52.64,-1)`
select round(5.5),round(-5.5);
round(5.5) round(-5.5)
6 -6
explain extended select round(5.5),round(-5.5);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select round(5.5,0) AS `round(5.5)`,round(-(5.5),0) AS `round(-5.5)`
select round(5.64,1),round(5.64,2),round(5.64,-1),round(5.64,-2);
round(5.64,1) round(5.64,2) round(5.64,-1) round(5.64,-2)
5.6 5.64 10 0
select abs(-10), sign(-5), sign(5), sign(0);
abs(-10) sign(-5) sign(5) sign(0)
10 -1 1 0
explain extended select abs(-10), sign(-5), sign(5), sign(0);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select abs(-(10)) AS `abs(-10)`,sign(-(5)) AS `sign(-5)`,sign(5) AS `sign(5)`,sign(0) AS `sign(0)`
select log(exp(10)),exp(log(sqrt(10))*2),log(-1),log(NULL),log(1,1),log(3,9),log(-1,2),log(NULL,2);
log(exp(10)) exp(log(sqrt(10))*2) log(-1) log(NULL) log(1,1) log(3,9) log(-1,2) log(NULL,2)
10 10 NULL NULL NULL 2 NULL NULL
explain extended select log(exp(10)),exp(log(sqrt(10))*2),log(-1),log(NULL),log(1,1),log(3,9),log(-1,2),log(NULL,2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select log(exp(10)) AS `log(exp(10))`,exp((log(sqrt(10)) * 2)) AS `exp(log(sqrt(10))*2)`,log(-(1)) AS `log(-1)`,log(NULL) AS `log(NULL)`,log(1,1) AS `log(1,1)`,log(3,9) AS `log(3,9)`,log(-(1),2) AS `log(-1,2)`,log(NULL,2) AS `log(NULL,2)`
select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
ln(exp(10)) exp(ln(sqrt(10))*2) ln(-1) ln(0) ln(NULL)
10 10 NULL NULL NULL
explain extended select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select ln(exp(10)) AS `ln(exp(10))`,exp((ln(sqrt(10)) * 2)) AS `exp(ln(sqrt(10))*2)`,ln(-(1)) AS `ln(-1)`,ln(0) AS `ln(0)`,ln(NULL) AS `ln(NULL)`
select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
log2(8) log2(15) log2(-2) log2(0) log2(NULL)
3 3.90689059560852 NULL NULL NULL
explain extended select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select log2(8) AS `log2(8)`,log2(15) AS `log2(15)`,log2(-(2)) AS `log2(-2)`,log2(0) AS `log2(0)`,log2(NULL) AS `log2(NULL)`
select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
log10(100) log10(18) log10(-4) log10(0) log10(NULL)
2 1.25527250510331 NULL NULL NULL
explain extended select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select log10(100) AS `log10(100)`,log10(18) AS `log10(18)`,log10(-(4)) AS `log10(-4)`,log10(0) AS `log10(0)`,log10(NULL) AS `log10(NULL)`
select pow(10,log10(10)),power(2,4);
pow(10,log10(10)) power(2,4)
10 16
explain extended select pow(10,log10(10)),power(2,4);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select pow(10,log10(10)) AS `pow(10,log10(10))`,pow(2,4) AS `power(2,4)`
set @@rand_seed1=10000000,@@rand_seed2=1000000;
select rand(999999),rand();
rand(999999) rand()
0.0142313651873091 0.028870999839968
explain extended select rand(999999),rand();
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select rand(999999) AS `rand(999999)`,rand() AS `rand()`
select pi(),format(sin(pi()/2),6),format(cos(pi()/2),6),format(abs(tan(pi())),6),format(cot(1),6),format(asin(1),6),format(acos(0),6),format(atan(1),6);
pi() format(sin(pi()/2),6) format(cos(pi()/2),6) format(abs(tan(pi())),6) format(cot(1),6) format(asin(1),6) format(acos(0),6) format(atan(1),6)
3.141593 1.000000 0.000000 0.000000 0.642093 1.570796 1.570796 0.785398
explain extended select pi(),format(sin(pi()/2),6),format(cos(pi()/2),6),format(abs(tan(pi())),6),format(cot(1),6),format(asin(1),6),format(acos(0),6),format(atan(1),6);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select pi() AS `pi()`,format(sin((pi() / 2)),6) AS `format(sin(pi()/2),6)`,format(cos((pi() / 2)),6) AS `format(cos(pi()/2),6)`,format(abs(tan(pi())),6) AS `format(abs(tan(pi())),6)`,format((1 / tan(1)),6) AS `format(cot(1),6)`,format(asin(1),6) AS `format(asin(1),6)`,format(acos(0),6) AS `format(acos(0),6)`,format(atan(1),6) AS `format(atan(1),6)`
select degrees(pi()),radians(360);
degrees(pi()) radians(360)
180 6.28318530717959
select format(atan(-2, 2), 6);
format(atan(-2, 2), 6)
-0.785398
select format(atan(pi(), 0), 6);
format(atan(pi(), 0), 6)
1.570796
select format(atan2(-2, 2), 6);
format(atan2(-2, 2), 6)
-0.785398
select format(atan2(pi(), 0), 6);
format(atan2(pi(), 0), 6)
1.570796
SELECT ACOS(1.0);
ACOS(1.0)
0
SELECT ASIN(1.0);
ASIN(1.0)
1.5707963267949
SELECT ACOS(0.2*5.0);
ACOS(0.2*5.0)
0
SELECT ACOS(0.5*2.0);
ACOS(0.5*2.0)
0
SELECT ASIN(0.8+0.2);
ASIN(0.8+0.2)
1.5707963267949
SELECT ASIN(1.2-0.2);
ASIN(1.2-0.2)
1.5707963267949
select format(4.55, 1), format(4.551, 1);
format(4.55, 1) format(4.551, 1)
4.6 4.6
explain extended select degrees(pi()),radians(360);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select degrees(pi()) AS `degrees(pi())`,radians(360) AS `radians(360)`
select rand(rand);
ERROR 42S22: Unknown column 'rand' in 'field list'
create table t1 (col1 int, col2 decimal(60,30));
insert into t1 values(1,1234567890.12345);
select format(col2,7) from t1;
format(col2,7)
1,234,567,890.1234500
select format(col2,8) from t1;
format(col2,8)
1,234,567,890.12345000
insert into t1 values(7,1234567890123456.12345);
select format(col2,6) from t1 where col1=7;
format(col2,6)
1,234,567,890,123,456.123450
drop table t1;
select ceil(0.09);
ceil(0.09)
1
select ceil(0.000000000000000009);
ceil(0.000000000000000009)
1
create table t1 select round(1, 6);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`round(1, 6)` int(1) NOT NULL DEFAULT '0'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
select * from t1;
round(1, 6)
1
drop table t1;
select abs(-2) * -2;
abs(-2) * -2
-4
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(1),(1),(2);
SELECT CAST(RAND(2) * 1000 AS UNSIGNED), CAST(RAND(a) * 1000 AS UNSIGNED)
FROM t1;
CAST(RAND(2) * 1000 AS UNSIGNED) CAST(RAND(a) * 1000 AS UNSIGNED)
656 405
122 405
645 405
858 656
SELECT CAST(RAND(2) * 1000 AS UNSIGNED), CAST(RAND(a) * 1000 AS UNSIGNED)
FROM t1 WHERE a = 1;
CAST(RAND(2) * 1000 AS UNSIGNED) CAST(RAND(a) * 1000 AS UNSIGNED)
656 405
122 405
645 405
INSERT INTO t1 VALUES (3);
SELECT CAST(RAND(2) * 1000 AS UNSIGNED), CAST(RAND(a) * 1000 AS UNSIGNED)
FROM t1;
CAST(RAND(2) * 1000 AS UNSIGNED) CAST(RAND(a) * 1000 AS UNSIGNED)
656 405
122 405
645 405
858 656
354 906
SELECT CAST(RAND(2) * 1000 AS UNSIGNED), CAST(RAND(a) * 1000 AS UNSIGNED)
FROM t1 WHERE a = 1;
CAST(RAND(2) * 1000 AS UNSIGNED) CAST(RAND(a) * 1000 AS UNSIGNED)
656 405
122 405
645 405
PREPARE stmt FROM
"SELECT CAST(RAND(2) * 1000 AS UNSIGNED), CAST(RAND(?) * 1000 AS UNSIGNED)
FROM t1 WHERE a = 1";
set @var=2;
EXECUTE stmt USING @var;
CAST(RAND(2) * 1000 AS UNSIGNED) CAST(RAND(?) * 1000 AS UNSIGNED)
656 656
122 122
645 645
DROP TABLE t1;
create table t1 (a varchar(90), ts datetime not null, index (a)) engine=innodb default charset=utf8;
insert into t1 values ('http://www.foo.com/', now());
select a from t1 where a='http://www.foo.com/' order by abs(timediff(ts, 0));
a
http://www.foo.com/
drop table t1;
set sql_mode='traditional';
select ln(-1);
ln(-1)
NULL
Warnings:
Error 1365 Division by 0
select log10(-1);
log10(-1)
NULL
Warnings:
Error 1365 Division by 0
select log2(-1);
log2(-1)
NULL
Warnings:
Error 1365 Division by 0
select log(2,-1);
log(2,-1)
NULL
Warnings:
Error 1365 Division by 0
select log(-2,1);
log(-2,1)
NULL
Warnings:
Error 1365 Division by 0
set sql_mode='';
select round(111,-10);
round(111,-10)
0
select round(-5000111000111000155,-1);
round(-5000111000111000155,-1)
-5000111000111000160
select round(15000111000111000155,-1);
round(15000111000111000155,-1)
15000111000111000160
select truncate(-5000111000111000155,-1);
truncate(-5000111000111000155,-1)
-5000111000111000150
select truncate(15000111000111000155,-1);
truncate(15000111000111000155,-1)
15000111000111000150
set names utf8;
create table t1
(f1 varchar(32) not null,
f2 smallint(5) unsigned not null,
f3 int(10) unsigned not null default '0')
engine=myisam default charset=utf8;
insert into t1 values ('zombie',0,0),('gold',1,10000),('silver',2,10000);
create table t2
(f1 int(10) unsigned not null,
f2 int(10) unsigned not null,
f3 smallint(5) unsigned not null)
engine=myisam default charset=utf8;
insert into t2 values (16777216,16787215,1),(33554432,33564431,2);
select format(t2.f2-t2.f1+1,0) from t1,t2
where t1.f2 = t2.f3 order by t1.f1;
format(t2.f2-t2.f1+1,0)
10,000
10,000
drop table t1, t2;
set names default;
select cast(-2 as unsigned), 18446744073709551614, -2;
cast(-2 as unsigned) 18446744073709551614 -2
18446744073709551614 18446744073709551614 -2
select abs(cast(-2 as unsigned)), abs(18446744073709551614), abs(-2);
abs(cast(-2 as unsigned)) abs(18446744073709551614) abs(-2)
18446744073709551614 18446744073709551614 2
select ceiling(cast(-2 as unsigned)), ceiling(18446744073709551614), ceiling(-2);
ceiling(cast(-2 as unsigned)) ceiling(18446744073709551614) ceiling(-2)
18446744073709551614 18446744073709551614 -2
select floor(cast(-2 as unsigned)), floor(18446744073709551614), floor(-2);
floor(cast(-2 as unsigned)) floor(18446744073709551614) floor(-2)
18446744073709551614 18446744073709551614 -2
select format(cast(-2 as unsigned), 2), format(18446744073709551614, 2), format(-2, 2);
format(cast(-2 as unsigned), 2) format(18446744073709551614, 2) format(-2, 2)
18,446,744,073,709,551,614.00 18,446,744,073,709,551,614.00 -2.00
select sqrt(cast(-2 as unsigned)), sqrt(18446744073709551614), sqrt(-2);
sqrt(cast(-2 as unsigned)) sqrt(18446744073709551614) sqrt(-2)
4294967296 4294967296 NULL
select round(cast(-2 as unsigned), 1), round(18446744073709551614, 1), round(-2, 1);
round(cast(-2 as unsigned), 1) round(18446744073709551614, 1) round(-2, 1)
18446744073709551614 18446744073709551614 -2
select round(4, cast(-2 as unsigned)), round(4, 18446744073709551614), round(4, -2);
round(4, cast(-2 as unsigned)) round(4, 18446744073709551614) round(4, -2)
4 4 0
select truncate(cast(-2 as unsigned), 1), truncate(18446744073709551614, 1), truncate(-2, 1);
truncate(cast(-2 as unsigned), 1) truncate(18446744073709551614, 1) truncate(-2, 1)
18446744073709551614 18446744073709551614 -2
select truncate(4, cast(-2 as unsigned)), truncate(4, 18446744073709551614), truncate(4, -2);
truncate(4, cast(-2 as unsigned)) truncate(4, 18446744073709551614) truncate(4, -2)
4 4 0
select round(10000000000000000000, -19), truncate(10000000000000000000, -19);
round(10000000000000000000, -19) truncate(10000000000000000000, -19)
10000000000000000000 10000000000000000000
select round(1e0, -309), truncate(1e0, -309);
round(1e0, -309) truncate(1e0, -309)
0 0
select round(1e1,308), truncate(1e1, 308);
round(1e1,308) truncate(1e1, 308)
10 10
select round(1e1, 2147483648), truncate(1e1, 2147483648);
round(1e1, 2147483648) truncate(1e1, 2147483648)
10 10
select round(1.1e1, 4294967295), truncate(1.1e1, 4294967295);
round(1.1e1, 4294967295) truncate(1.1e1, 4294967295)
11 11
select round(1.12e1, 4294967296), truncate(1.12e1, 4294967296);
round(1.12e1, 4294967296) truncate(1.12e1, 4294967296)
11.2 11.2
select round(1.5, 2147483640), truncate(1.5, 2147483640);
round(1.5, 2147483640) truncate(1.5, 2147483640)
1.500000000000000000000000000000 1.500000000000000000000000000000
select round(1.5, -2147483649), round(1.5, 2147483648);
round(1.5, -2147483649) round(1.5, 2147483648)
0 1.500000000000000000000000000000
select truncate(1.5, -2147483649), truncate(1.5, 2147483648);
truncate(1.5, -2147483649) truncate(1.5, 2147483648)
0 1.500000000000000000000000000000
select round(1.5, -4294967296), round(1.5, 4294967296);
round(1.5, -4294967296) round(1.5, 4294967296)
0 1.500000000000000000000000000000
select truncate(1.5, -4294967296), truncate(1.5, 4294967296);
truncate(1.5, -4294967296) truncate(1.5, 4294967296)
0 1.500000000000000000000000000000
select round(1.5, -9223372036854775808), round(1.5, 9223372036854775808);
round(1.5, -9223372036854775808) round(1.5, 9223372036854775808)
0 1.500000000000000000000000000000
select truncate(1.5, -9223372036854775808), truncate(1.5, 9223372036854775808);
truncate(1.5, -9223372036854775808) truncate(1.5, 9223372036854775808)
0 1.500000000000000000000000000000
select round(1.5, 18446744073709551615), truncate(1.5, 18446744073709551615);
round(1.5, 18446744073709551615) truncate(1.5, 18446744073709551615)
1.500000000000000000000000000000 1.500000000000000000000000000000
select round(18446744073709551614, -1), truncate(18446744073709551614, -1);
round(18446744073709551614, -1) truncate(18446744073709551614, -1)
18446744073709551610 18446744073709551610
select round(4, -4294967200), truncate(4, -4294967200);
round(4, -4294967200) truncate(4, -4294967200)
0 0
select mod(cast(-2 as unsigned), 3), mod(18446744073709551614, 3), mod(-2, 3);
mod(cast(-2 as unsigned), 3) mod(18446744073709551614, 3) mod(-2, 3)
2 2 -2
select mod(5, cast(-2 as unsigned)), mod(5, 18446744073709551614), mod(5, -2);
mod(5, cast(-2 as unsigned)) mod(5, 18446744073709551614) mod(5, -2)
5 5 1
select pow(cast(-2 as unsigned), 5), pow(18446744073709551614, 5), pow(-2, 5);
pow(cast(-2 as unsigned), 5) pow(18446744073709551614, 5) pow(-2, 5)
2.13598703592091e+96 2.13598703592091e+96 -32
CREATE TABLE t1 (a timestamp, b varchar(20), c bit(1));
INSERT INTO t1 VALUES('1998-09-23', 'str1', 1), ('2003-03-25', 'str2', 0);
SELECT a DIV 900 y FROM t1 GROUP BY y;
y
22201025555
22255916666
SELECT DISTINCT a DIV 900 y FROM t1;
y
22201025555
22255916666
SELECT b DIV 900 y FROM t1 GROUP BY y;
y
0
SELECT c DIV 900 y FROM t1 GROUP BY y;
y
0
DROP TABLE t1;
CREATE TABLE t1(a LONGBLOB);
INSERT INTO t1 VALUES('1'),('2'),('3');
SELECT DISTINCT (a DIV 254576881) FROM t1;
(a DIV 254576881)
0
SELECT (a DIV 254576881) FROM t1 UNION ALL
SELECT (a DIV 254576881) FROM t1;
(a DIV 254576881)
0
0
0
0
0
0
DROP TABLE t1;
CREATE TABLE t1(a SET('a','b','c'));
INSERT INTO t1 VALUES ('a');
SELECT a DIV 2 FROM t1 UNION SELECT a DIV 2 FROM t1;
a DIV 2
0
DROP TABLE t1;
CREATE TABLE t1 (a DOUBLE);
INSERT INTO t1 VALUES (-1.1), (1.1),
(-1.5), (1.5),
(-1.9), (1.9),
(-2.1), (2.1),
(-2.5), (2.5),
(-2.9), (2.9),
# Check numbers with absolute values > 2^53 - 1
# (see comments for MAX_EXACT_INTEGER)
(-1e16 - 0.5), (1e16 + 0.5),
(-1e16 - 1.5), (1e16 + 1.5);
SELECT a, ROUND(a) FROM t1;
a ROUND(a)
-1.1 -1
1.1 1
-1.5 -2
1.5 2
-1.9 -2
1.9 2
-2.1 -2
2.1 2
-2.5 -2
2.5 2
-2.9 -3
2.9 3
-1e+16 -10000000000000000
1e+16 10000000000000000
-1e+16 -10000000000000002
1e+16 10000000000000002
DROP TABLE t1;
CREATE TABLE t1(f1 LONGTEXT) engine=myisam;
INSERT INTO t1 VALUES ('a');
SELECT 1 FROM (SELECT ROUND(f1) AS a FROM t1) AS s WHERE a LIKE 'a';
1
SELECT 1 FROM (SELECT ROUND(f1, f1) AS a FROM t1) AS s WHERE a LIKE 'a';
1
DROP TABLE t1;
End of 5.0 tests
SELECT 1e308 + 1e308;
1e308 + 1e308
NULL
SELECT -1e308 - 1e308;
-1e308 - 1e308
NULL
SELECT 1e300 * 1e300;
1e300 * 1e300
NULL
SELECT 1e300 / 1e-300;
1e300 / 1e-300
NULL
SELECT EXP(750);
EXP(750)
NULL
SELECT POW(10, 309);
POW(10, 309)
NULL
#
# Bug #44768: SIGFPE crash when selecting rand from a view
# containing null
#
CREATE OR REPLACE VIEW v1 AS SELECT NULL AS a;
SELECT RAND(a) FROM v1;
RAND(a)
0.155220427694936
DROP VIEW v1;
SELECT RAND(a) FROM (SELECT NULL AS a) b;
RAND(a)
0.155220427694936
CREATE TABLE t1 (i INT);
INSERT INTO t1 VALUES (NULL);
SELECT RAND(i) FROM t1;
RAND(i)
0.155220427694936
DROP TABLE t1;
#
# Bug#57477 SIGFPE when dividing a huge number a negative number
#
SELECT -9999999999999999991 DIV -1;
-9999999999999999991 DIV -1
-9223372036854775808
Warnings:
Error 1292 Truncated incorrect DECIMAL value: ''
SELECT -9223372036854775808 DIV -1;
-9223372036854775808 DIV -1
-9223372036854775808
SELECT -9223372036854775808 MOD -1;
-9223372036854775808 MOD -1
0
SELECT -9223372036854775808999 MOD -1;
-9223372036854775808999 MOD -1
0
#
# Bug#57810 case/when/then : Assertion failed: length || !scale
#
SELECT CASE(('')) WHEN (CONVERT(1, CHAR(1))) THEN (('' / 1)) END;
CASE(('')) WHEN (CONVERT(1, CHAR(1))) THEN (('' / 1)) END
NULL
CREATE TABLE t1 SELECT CAST((CASE(('')) WHEN (CONVERT(1, CHAR(1))) THEN (('' / 1)) END) AS CHAR) as C;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`C` varchar(23) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
#
# Bug#11764994 57900: CREATE TABLE .. SELECT ASSERTS SCALE >= 0 && PRECISION > 0 && SCALE <= PR
#
CREATE TABLE t1 SELECT CEIL(LINESTRINGFROMWKB(1) DIV NULL);
DROP TABLE t1;
CREATE TABLE t1 SELECT FLOOR(LINESTRINGFROMWKB(1) DIV NULL);
DROP TABLE t1;
#
# Bug#11765923 58937: MANY VALGRIND ERRORS AFTER GROUPING BY RESULT OF DECIMAL COLUMN FUNCTION
#
CREATE TABLE t1(f1 DECIMAL(22,1));
INSERT INTO t1 VALUES (0),(1);
SELECT ROUND(f1, f1) FROM t1;
ROUND(f1, f1)
0.0
1.0
SELECT ROUND(f1, f1) FROM t1 GROUP BY 1;
ROUND(f1, f1)
0.0
1.0
DROP TABLE t1;
#
# Bug#11764671 57533: UNINITIALISED VALUES IN COPY_AND_CONVERT (SQL_STRING.CC) WITH CERTAIN CHA
#
SELECT ROUND(LEAST(15, -4939092, 0.2704), STDDEV('a'));
ROUND(LEAST(15, -4939092, 0.2704), STDDEV('a'))
-4939092.0000
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'a'
#
# Bug#12392636 ASSERTION FAILED: SCALE >= 0 && PRECISION > 0 && SCALE <= PRECISION
#
SELECT SUM(DISTINCT (TRUNCATE((.1), NULL)));
SUM(DISTINCT (TRUNCATE((.1), NULL)))
NULL
End of 5.1 tests
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