mirror of
https://github.com/MariaDB/server.git
synced 2025-01-19 13:32:33 +01:00
d04b02b977
SQL_BIG_RESULT used": now BIT_AND() always returns 18446744073709551615 if no rows were found. This patch also fixes bug #1972: "BIT_AND() and BIT_OR() still return a *signed* 64bit value"
258 lines
8.1 KiB
Text
258 lines
8.1 KiB
Text
drop table if exists t1,t2;
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create table t1 (grp int, a bigint unsigned, c char(10) not null);
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insert into t1 values (1,1,"a");
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insert into t1 values (2,2,"b");
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insert into t1 values (2,3,"c");
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insert into t1 values (3,4,"E");
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insert into t1 values (3,5,"C");
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insert into t1 values (3,6,"D");
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select a,c,sum(a) from t1 group by a;
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a c sum(a)
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1 a 1
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2 b 2
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3 c 3
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4 E 4
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5 C 5
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6 D 6
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select a,c,sum(a) from t1 where a > 10 group by a;
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a c sum(a)
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select sum(a) from t1 where a > 10;
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sum(a)
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NULL
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select a from t1 order by rand(10);
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a
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2
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6
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1
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3
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5
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4
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select distinct a from t1 order by rand(10);
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a
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2
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6
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1
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3
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5
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4
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select count(distinct a),count(distinct grp) from t1;
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count(distinct a) count(distinct grp)
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6 3
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insert into t1 values (null,null,'');
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select count(distinct a),count(distinct grp) from t1;
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count(distinct a) count(distinct grp)
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6 3
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select sum(all a),count(all a),avg(all a),std(all a),bit_or(all a),bit_and(all a),min(all a),max(all a),min(all c),max(all c) from t1;
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sum(all a) count(all a) avg(all a) std(all a) bit_or(all a) bit_and(all a) min(all a) max(all a) min(all c) max(all c)
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21 6 3.5000 1.7078 7 0 1 6 E
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select grp, sum(a),count(a),avg(a),std(a),bit_or(a),bit_and(a),min(a),max(a),min(c),max(c) from t1 group by grp;
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grp sum(a) count(a) avg(a) std(a) bit_or(a) bit_and(a) min(a) max(a) min(c) max(c)
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NULL NULL 0 NULL NULL 0 18446744073709551615 NULL NULL
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1 1 1 1.0000 0.0000 1 1 1 1 a a
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2 5 2 2.5000 0.5000 3 2 2 3 b c
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3 15 3 5.0000 0.8165 7 4 4 6 C E
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select grp, sum(a)+count(a)+avg(a)+std(a)+bit_or(a)+bit_and(a)+min(a)+max(a)+min(c)+max(c) as sum from t1 group by grp;
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grp sum
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NULL NULL
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1 7
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2 20
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3 44.816496580928
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create table t2 (grp int, a bigint unsigned, c char(10));
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insert into t2 select grp,max(a)+max(grp),max(c) from t1 group by grp;
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replace into t2 select grp, a, c from t1 limit 2,1;
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select * from t2;
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grp a c
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NULL NULL
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1 2 a
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2 5 c
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3 9 E
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2 3 c
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drop table t1,t2;
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CREATE TABLE t1 (id int(11),value1 float(10,2));
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INSERT INTO t1 VALUES (1,0.00),(1,1.00), (1,2.00), (2,10.00), (2,11.00), (2,12.00);
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CREATE TABLE t2 (id int(11),name char(20));
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INSERT INTO t2 VALUES (1,'Set One'),(2,'Set Two');
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select id, avg(value1), std(value1) from t1 group by id;
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id avg(value1) std(value1)
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1 1.000000 0.816497
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2 11.000000 0.816497
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select name, avg(value1), std(value1) from t1, t2 where t1.id = t2.id group by t1.id;
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name avg(value1) std(value1)
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Set One 1.000000 0.816497
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Set Two 11.000000 0.816497
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drop table t1,t2;
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create table t1 (id int not null);
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create table t2 (id int not null,rating int null);
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insert into t1 values(1),(2),(3);
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insert into t2 values(1, 3),(2, NULL),(2, NULL),(3, 2),(3, NULL);
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select t1.id, avg(rating) from t1 left join t2 on ( t1.id = t2.id ) group by t1.id;
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id avg(rating)
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1 3.0000
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2 NULL
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3 2.0000
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drop table t1,t2;
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create table t1 (a smallint(6) primary key, c char(10), b text);
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INSERT INTO t1 VALUES (1,'1','1');
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INSERT INTO t1 VALUES (2,'2','2');
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INSERT INTO t1 VALUES (4,'4','4');
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select count(*) from t1;
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count(*)
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3
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select count(*) from t1 where a = 1;
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count(*)
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1
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select count(*) from t1 where a = 100;
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count(*)
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0
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select count(*) from t1 where a >= 10;
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count(*)
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0
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select count(a) from t1 where a = 1;
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count(a)
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1
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select count(a) from t1 where a = 100;
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count(a)
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0
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select count(a) from t1 where a >= 10;
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count(a)
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0
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select count(b) from t1 where b >= 2;
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count(b)
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2
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select count(b) from t1 where b >= 10;
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count(b)
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0
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select count(c) from t1 where c = 10;
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count(c)
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0
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drop table t1;
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CREATE TABLE t1 (d DATETIME, i INT);
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INSERT INTO t1 VALUES (NOW(), 1);
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SELECT COUNT(i), i, COUNT(i)*i FROM t1 GROUP BY i;
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COUNT(i) i COUNT(i)*i
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1 1 1
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SELECT COUNT(i), (i+0), COUNT(i)*(i+0) FROM t1 GROUP BY i;
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COUNT(i) (i+0) COUNT(i)*(i+0)
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1 1 1
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DROP TABLE t1;
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create table t1 (
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num float(5,2),
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user char(20)
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);
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insert into t1 values (10.3,'nem'),(20.53,'monty'),(30.23,'sinisa');
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insert into t1 values (30.13,'nem'),(20.98,'monty'),(10.45,'sinisa');
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insert into t1 values (5.2,'nem'),(8.64,'monty'),(11.12,'sinisa');
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select sum(num) from t1;
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sum(num)
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147.58
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select sum(num) from t1 group by user;
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sum(num)
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50.15
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45.63
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51.80
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drop table t1;
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create table t1 (a1 int, a2 char(3), key k1(a1), key k2(a2));
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insert into t1 values(10,'aaa'), (10,null), (10,'bbb'), (20,'zzz');
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create table t2(a1 char(3), a2 int, a3 real, key k1(a1), key k2(a2, a1));
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select * from t1;
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a1 a2
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10 aaa
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10 NULL
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10 bbb
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20 zzz
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select min(a2) from t1;
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min(a2)
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aaa
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select max(t1.a1), max(t2.a2) from t1, t2;
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max(t1.a1) max(t2.a2)
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NULL NULL
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select max(t1.a1) from t1, t2;
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max(t1.a1)
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NULL
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select max(t2.a2), max(t1.a1) from t1, t2;
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max(t2.a2) max(t1.a1)
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NULL NULL
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explain select min(a2) from t1;
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Comment
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Select tables optimized away
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explain select max(t1.a1), max(t2.a2) from t1, t2;
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Comment
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No matching min/max row
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insert into t2 values('AAA', 10, 0.5);
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select max(t1.a1), max(t2.a1) from t1, t2 where t2.a2=9;
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max(t1.a1) max(t2.a1)
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NULL NULL
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select max(t2.a1), max(t1.a1) from t1, t2 where t2.a2=9;
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max(t2.a1) max(t1.a1)
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NULL NULL
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select t1.a1, t1.a2, t2.a1, t2.a2 from t1 left outer join t2 on t1.a1=10;
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a1 a2 a1 a2
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10 aaa AAA 10
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10 NULL AAA 10
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10 bbb AAA 10
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20 zzz NULL NULL
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select max(t1.a2) from t1 left outer join t2 on t1.a1=10;
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max(t1.a2)
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zzz
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select max(t1.a2) from t1 left outer join t2 on t1.a1=10 where t1.a1=20;
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max(t1.a2)
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zzz
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select max(t1.a2) from t1 left outer join t2 on t1.a1=10 where t1.a1=10;
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max(t1.a2)
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bbb
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select max(t2.a1) from t1 left outer join t2 on t1.a2=t2.a1 and 1=0 where t2.a1='AAA';
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max(t2.a1)
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NULL
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drop table t1,t2;
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CREATE TABLE t1 (a int, b int);
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select count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1;
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count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b)
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0 NULL NULL NULL NULL NULL 18446744073709551615 0
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select a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a;
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a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b)
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insert into t1 values (1,null);
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select a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a;
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a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b)
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1 0 NULL NULL NULL NULL NULL 18446744073709551615 0
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insert into t1 values (1,null);
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insert into t1 values (2,null);
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select a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a;
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a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b)
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1 0 NULL NULL NULL NULL NULL 18446744073709551615 0
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2 0 NULL NULL NULL NULL NULL 18446744073709551615 0
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select SQL_BIG_RESULT a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a;
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a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b)
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1 0 NULL NULL NULL NULL NULL 18446744073709551615 0
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2 0 NULL NULL NULL NULL NULL 18446744073709551615 0
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insert into t1 values (2,1);
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select a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a;
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a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b)
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1 0 NULL NULL NULL NULL NULL 18446744073709551615 0
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2 1 1 1.0000 0.0000 1 1 1 1
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select SQL_BIG_RESULT a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a;
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a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b)
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1 0 NULL NULL NULL NULL NULL 18446744073709551615 0
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2 1 1 1.0000 0.0000 1 1 1 1
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insert into t1 values (3,1);
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select a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a;
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a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b)
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1 0 NULL NULL NULL NULL NULL 18446744073709551615 0
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2 1 1 1.0000 0.0000 1 1 1 1
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3 1 1 1.0000 0.0000 1 1 1 1
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select SQL_BIG_RESULT a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a;
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a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b)
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1 0 NULL NULL NULL NULL NULL 18446744073709551615 0
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2 1 1 1.0000 0.0000 1 1 1 1
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3 1 1 1.0000 0.0000 1 1 1 1
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drop table t1;
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create table t1 (col int);
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insert into t1 values (-1), (-2), (-3);
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select bit_and(col), bit_or(col) from t1;
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bit_and(col) bit_or(col)
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18446744073709551612 18446744073709551615
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select SQL_BIG_RESULT bit_and(col), bit_or(col) from t1 group by col;
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bit_and(col) bit_or(col)
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18446744073709551613 18446744073709551613
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18446744073709551614 18446744073709551614
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18446744073709551615 18446744073709551615
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drop table t1;
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