mirror of
https://github.com/MariaDB/server.git
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273 lines
7.5 KiB
Text
273 lines
7.5 KiB
Text
create table t1 (USR_ID integer not null, MAX_REQ integer not null, constraint PK_SEA_USER primary key (USR_ID)) engine=InnoDB;
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insert into t1 values (1, 3);
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select count(*) + MAX_REQ - MAX_REQ + MAX_REQ - MAX_REQ + MAX_REQ - MAX_REQ + MAX_REQ - MAX_REQ + MAX_REQ - MAX_REQ from t1 group by MAX_REQ;
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count(*) + MAX_REQ - MAX_REQ + MAX_REQ - MAX_REQ + MAX_REQ - MAX_REQ + MAX_REQ - MAX_REQ + MAX_REQ - MAX_REQ
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1
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select Case When Count(*) < MAX_REQ Then 1 Else 0 End from t1 where t1.USR_ID = 1 group by MAX_REQ;
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Case When Count(*) < MAX_REQ Then 1 Else 0 End
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1
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drop table t1;
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create table t1m (a int) engine=myisam;
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create table t1i (a int) engine=innodb;
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create table t2m (a int) engine=myisam;
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create table t2i (a int) engine=innodb;
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insert into t2m values (5);
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insert into t2i values (5);
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select min(a) from t1m;
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min(a)
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NULL
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select min(7) from t1m;
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min(7)
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NULL
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select min(7) from DUAL;
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min(7)
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7
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explain select min(7) from t2m join t1m;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
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select min(7) from t2m join t1m;
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min(7)
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NULL
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select max(a) from t1m;
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max(a)
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NULL
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select max(7) from t1m;
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max(7)
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NULL
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select max(7) from DUAL;
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max(7)
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7
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explain select max(7) from t2m join t1m;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
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select max(7) from t2m join t1m;
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max(7)
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NULL
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select 1, min(a) from t1m where a=99;
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1 min(a)
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1 NULL
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select 1, min(a) from t1m where 1=99;
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1 min(a)
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1 NULL
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select 1, min(1) from t1m where a=99;
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1 min(1)
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1 NULL
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select 1, min(1) from t1m where 1=99;
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1 min(1)
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1 NULL
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select 1, max(a) from t1m where a=99;
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1 max(a)
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1 NULL
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select 1, max(a) from t1m where 1=99;
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1 max(a)
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1 NULL
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select 1, max(1) from t1m where a=99;
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1 max(1)
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1 NULL
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select 1, max(1) from t1m where 1=99;
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1 max(1)
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1 NULL
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select min(a) from t1i;
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min(a)
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NULL
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select min(7) from t1i;
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min(7)
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NULL
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select min(7) from DUAL;
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min(7)
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7
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explain select min(7) from t2i join t1i;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2i ALL NULL NULL NULL NULL 1
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1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join)
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select min(7) from t2i join t1i;
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min(7)
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NULL
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select max(a) from t1i;
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max(a)
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NULL
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select max(7) from t1i;
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max(7)
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NULL
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select max(7) from DUAL;
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max(7)
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7
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explain select max(7) from t2i join t1i;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2i ALL NULL NULL NULL NULL 1
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1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join)
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select max(7) from t2i join t1i;
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max(7)
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NULL
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select 1, min(a) from t1i where a=99;
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1 min(a)
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1 NULL
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select 1, min(a) from t1i where 1=99;
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1 min(a)
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1 NULL
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select 1, min(1) from t1i where a=99;
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1 min(1)
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1 NULL
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select 1, min(1) from t1i where 1=99;
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1 min(1)
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1 NULL
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select 1, max(a) from t1i where a=99;
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1 max(a)
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1 NULL
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select 1, max(a) from t1i where 1=99;
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1 max(a)
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1 NULL
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select 1, max(1) from t1i where a=99;
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1 max(1)
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1 NULL
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select 1, max(1) from t1i where 1=99;
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1 max(1)
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1 NULL
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explain select count(*), min(7), max(7) from t1m, t1i;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1m system NULL NULL NULL NULL 0 Const row not found
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1 SIMPLE t1i ALL NULL NULL NULL NULL 1
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select count(*), min(7), max(7) from t1m, t1i;
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count(*) min(7) max(7)
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0 NULL NULL
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explain select count(*), min(7), max(7) from t1m, t2i;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1m system NULL NULL NULL NULL 0 Const row not found
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1 SIMPLE t2i ALL NULL NULL NULL NULL 1
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select count(*), min(7), max(7) from t1m, t2i;
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count(*) min(7) max(7)
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0 NULL NULL
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explain select count(*), min(7), max(7) from t2m, t1i;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2m system NULL NULL NULL NULL 1
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1 SIMPLE t1i ALL NULL NULL NULL NULL 1
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select count(*), min(7), max(7) from t2m, t1i;
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count(*) min(7) max(7)
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0 NULL NULL
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drop table t1m, t1i, t2m, t2i;
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#
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# Bug #57954: BIT_AND function returns incorrect results when
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# semijoin=on
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CREATE TABLE c (
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pk INT,
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col_varchar_key VARCHAR(1),
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PRIMARY KEY (pk),
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KEY col_varchar_key (col_varchar_key)
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) ENGINE=InnoDB;
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INSERT INTO c VALUES (11,NULL);
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INSERT INTO c VALUES (16,'c');
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CREATE TABLE bb (
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pk INT,
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col_varchar_key VARCHAR(1),
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PRIMARY KEY (pk),
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KEY col_varchar_key (col_varchar_key)
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) ENGINE=InnoDB;
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INSERT INTO bb VALUES (10,NULL);
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SELECT straight_join BIT_AND(c.pk)
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FROM
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bb, c
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WHERE c.col_varchar_key='ABC'
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ORDER BY c.pk;
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BIT_AND(c.pk)
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18446744073709551615
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DROP TABLE c,bb;
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#
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# Bug #58050: BIT_OR and BIT_XOR return incorrect results when
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# semijoin=on
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#
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CREATE TABLE t1 (pk INT PRIMARY KEY, b INT, c INT) ENGINE=InnoDB;
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INSERT INTO t1 VALUES(1, 1, 1);
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CREATE TABLE t2 (pk INT PRIMARY KEY, b INT, c INT) ENGINE=InnoDB;
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INSERT INTO t2 VALUES (1, 1, NULL);
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SELECT t1.* FROM t1 JOIN t2 ON t1.c=t2.c WHERE t1.pk=1;
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pk b c
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SELECT BIT_OR(t1.b) FROM t1 JOIN t2 ON t1.c=t2.c WHERE t1.pk=1;
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BIT_OR(t1.b)
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0
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SELECT BIT_AND(t1.b) FROM t1 JOIN t2 ON t1.c=t2.c WHERE t1.pk=1;
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BIT_AND(t1.b)
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18446744073709551615
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SELECT BIT_XOR(t1.b) FROM t1 JOIN t2 ON t1.c=t2.c WHERE t1.pk=1;
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BIT_XOR(t1.b)
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0
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DROP TABLE t1, t2;
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#
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# Bug#12713907: STRANGE OPTIMIZE & WRONG RESULT UNDER ORDER BY
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# COUNT(*) LIMIT.
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#
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CREATE TABLE t1 (
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id BIGINT(20) ,
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member_id_to INT(11) ,
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r_date DATE ,
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PRIMARY KEY (id,r_date),
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KEY r_date_idx (r_date),
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KEY t1_idx01 (member_id_to)
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) ENGINE=InnoDB;
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INSERT INTO t1 VALUES
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(107924526,518491,'2011-05-01'),
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(107924527,518491,'2011-05-01'),
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(107924534,518491,'2011-06-21'),
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(107924535,518491,'2011-06-21'),
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(107924542,1601319,'2011-06-21'),
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(107924543,1601319,'2011-06-21'),
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(107924544,1601319,'2011-06-21'),
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(107924545,1601319,'2011-06-21');
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SELECT member_id_to, COUNT(*) FROM t1 WHERE r_date =
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'2011-06-21' GROUP BY member_id_to ORDER BY 2 LIMIT 1;
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member_id_to COUNT(*)
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518491 2
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DROP TABLE t1;
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#
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# MDEV-4269: crash when grouping by values()
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#
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SELECT @@storage_engine INTO @old_engine;
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set storage_engine=innodb;
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create table y select 1 b;
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select 1 from y group by b;
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1
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1
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select 1 from y group by value(b);
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1
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1
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drop table y;
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SET storage_engine=@old_engine;
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#
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# Bug#13723054 CRASH WITH MIN/MAX AFTER QUICK_GROUP_MIN_MAX_SELECT::NEXT_MIN
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#
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CREATE TABLE t1(a BLOB, b VARCHAR(255) CHARSET LATIN1, c INT,
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KEY(b, c, a(765))) ENGINE=INNODB;
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INSERT INTO t1(a, b, c) VALUES
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('', 'a', 0), ('', 'a', null), ('', 'a', 0), ('', 'a', null), ('', 'a', 0);
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ANALYZE TABLE t1;
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SELECT MIN(c) FROM t1 GROUP BY b;
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MIN(c)
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0
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EXPLAIN SELECT MIN(c) FROM t1 GROUP BY b;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 range NULL b 263 NULL 3 Using index for group-by
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DROP TABLE t1;
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#
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# MDEV-17589: Stack-buffer-overflow with indexed varchar (utf8) field
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#
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CREATE TABLE t1 (v1 varchar(1020), v2 varchar(2), v3 varchar(2),
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KEY k1 (v3,v2,v1)) ENGINE=InnoDB CHARACTER SET=utf8 ROW_FORMAT=DYNAMIC;
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INSERT INTO t1 VALUES ('king', 'qu','qu'), ('bad','go','go');
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explain
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SELECT MIN(t1.v1) FROM t1 where t1.v2='qu' and t1.v3='qu';
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
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SELECT MIN(t1.v1) FROM t1 where t1.v2='qu' and t1.v3='qu';
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MIN(t1.v1)
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king
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drop table t1;
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CREATE TABLE t1 (v1 varchar(1024) CHARACTER SET utf8, KEY v1 (v1)) ENGINE=InnoDB ROW_FORMAT=DYNAMIC;
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INSERT INTO t1 VALUES ('king'), ('bad');
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explain
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SELECT MIN(x.v1) FROM (SELECT t1.* FROM t1 WHERE t1.v1 >= 'p') x;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No matching min/max row
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SELECT MIN(x.v1) FROM (SELECT t1.* FROM t1 WHERE t1.v1 >= 'p') x;
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MIN(x.v1)
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NULL
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drop table t1;
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End of 5.5 tests
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