File: equal_fields_propagation_datetime.inc

package info (click to toggle)
mariadb 1%3A11.8.2-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, trixie
  • size: 765,428 kB
  • sloc: ansic: 2,382,827; cpp: 1,803,532; asm: 378,315; perl: 63,176; sh: 46,496; pascal: 40,776; java: 39,363; yacc: 20,428; python: 19,506; sql: 17,864; xml: 12,463; ruby: 8,544; makefile: 6,059; cs: 5,855; ada: 1,700; lex: 1,193; javascript: 1,039; objc: 80; tcl: 73; awk: 46; php: 22
file content (64 lines) | stat: -rw-r--r-- 2,695 bytes parent folder | download | duplicates (7)
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

# Trailing garbage in string literals
--eval CREATE TABLE t1 (a $TYPE);
INSERT INTO t1 VALUES ('2001-01-01 00:00:00'),('2001-01-01 00:00:01');
SELECT * FROM t1 WHERE a='2001-01-01 00:00:00x';
SELECT * FROM t1 WHERE LENGTH(a) != 20;
SELECT * FROM t1 WHERE LENGTH(a) != 20 AND a='2001-01-01 00:00:00x';
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE LENGTH(a) != 20 AND a='2001-01-01 00:00:00x';
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE LENGTH(a)!=30+RAND() AND a='2001-01-01 00:00:00x';
DROP TABLE t1;

# Leading spaces in string literals
--eval CREATE TABLE t1 (a $TYPE);
INSERT INTO t1 VALUES ('2001-01-01 00:00:00'),('2001-01-01 00:00:01');
SELECT * FROM t1 WHERE LENGTH(a)=19;
SELECT * FROM t1 WHERE LENGTH(a)=19 AND a=' 2001-01-01 00:00:00';
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE LENGTH(a)=19 AND a=' 2001-01-01 00:00:00';
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE LENGTH(a)=19+RAND() AND a=' 2001-01-01 00:00:00';
# This should not propagate
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE LENGTH(a)=30+RAND() AND a=' garbage ';
DROP TABLE t1;

# Trailing fractional digits in temporal literals
--eval CREATE TABLE t1 (a $TYPE);
INSERT INTO t1 VALUES ('2001-01-01 00:00:00'),('2001-01-01 00:00:01');
SELECT * FROM t1 WHERE a=TIMESTAMP'2001-01-01 00:00:00.000000';
SELECT * FROM t1 WHERE LENGTH(a)=19;
SELECT * FROM t1 WHERE LENGTH(a)=19 AND a=TIMESTAMP'2001-01-01 00:00:00.000000';
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE LENGTH(a)=19 AND a=TIMESTAMP'2001-01-01 00:00:00.000000';
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE LENGTH(a)=30+RAND() AND a=TIMESTAMP'2001-01-01 00:00:00.000000';
DROP TABLE t1;

# Trailing fractional digits in temporal literals, the same precision
--eval CREATE TABLE t1 (a $TYPE(6));
INSERT INTO t1 VALUES ('2001-01-01 00:00:00.000000'),('2001-01-01 00:00:01.000000');
SELECT * FROM t1 WHERE a=TIMESTAMP'2001-01-01 00:00:00.000000';
SELECT * FROM t1 WHERE LENGTH(a)=26;
SELECT * FROM t1 WHERE LENGTH(a)=26 AND a=TIMESTAMP'2001-01-01 00:00:00.000000';
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE LENGTH(a)=26 AND a=TIMESTAMP'2001-01-01 00:00:00.000000';
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE LENGTH(a)=40+RAND() AND a=TIMESTAMP'2001-01-01 00:00:00.000000';
DROP TABLE t1;

# DATETIME/TIMESTAMP column vs TIME literal
SET timestamp=UNIX_TIMESTAMP('2001-01-01 10:20:30');
--eval CREATE TABLE t1 (a $TYPE);
INSERT INTO t1 VALUES ('2001-01-01 00:00:00'),('2001-01-01 00:00:01');
SELECT * FROM t1 WHERE a=TIME'00:00:00';
SELECT * FROM t1 WHERE LENGTH(a)=19;
SELECT * FROM t1 WHERE LENGTH(a)=19 AND a=TIME'00:00:00';
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE LENGTH(a)=19 AND a=TIME'00:00:00';
EXPLAIN EXTENDED
SELECT * FROM t1 WHERE LENGTH(a)=40+RAND() AND a=TIME'00:00:00';
DROP TABLE t1;