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1
by brian
clean slate |
1 |
drop table if exists t1,t2; |
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create table t1(str varchar(10) default 'def',strnull varchar(10),intg int default '10',rel double default '3.14'); |
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3 |
insert into t1 values ('','',0,0.0); |
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select default(str), default(strnull), default(intg), default(rel) from t1; |
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default(str) default(strnull) default(intg) default(rel) |
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6 |
def NULL 10 3.14 |
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7 |
explain extended select default(str), default(strnull), default(intg), default(rel) from t1; |
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8 |
id select_type table type possible_keys key key_len ref rows filtered Extra |
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512
by Brian Aker
Adding back more test cases. |
9 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 1 100.00 |
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1
by brian
clean slate |
10 |
Warnings: |
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512
by Brian Aker
Adding back more test cases. |
11 |
Note 1003 select default(`test`.`t1`.`str`) AS `default(str)`,default(`test`.`t1`.`strnull`) AS `default(strnull)`,default(`test`.`t1`.`intg`) AS `default(intg)`,default(`test`.`t1`.`rel`) AS `default(rel)` from `test`.`t1` |
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1
by brian
clean slate |
12 |
select * from t1 where str <> default(str); |
13 |
str strnull intg rel |
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14 |
0 0 |
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15 |
explain select * from t1 where str <> default(str); |
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16 |
id select_type table type possible_keys key key_len ref rows Extra |
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512
by Brian Aker
Adding back more test cases. |
17 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 1 Using where |
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1
by brian
clean slate |
18 |
drop table t1; |
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512
by Brian Aker
Adding back more test cases. |
19 |
CREATE TABLE t1 (id int, s varchar(20)); |
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1
by brian
clean slate |
20 |
INSERT INTO t1 VALUES (1, 'one'), (2, 'two'), (3, 'three'); |
21 |
SELECT s, 32 AS mi FROM t1 GROUP BY s HAVING DEFAULT(mi) IS NULL; |
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22 |
ERROR HY000: Field 'mi' doesn't have a default value |
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23 |
DROP TABLE t1;
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