mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 15:50:51 +03:00
327 lines
6.0 KiB
Plaintext
327 lines
6.0 KiB
Plaintext
drop table if exists t1;
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create table t1 (
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a char(3) character set latin1 collate latin1_bin primary key
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) engine=ndb;
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insert into t1 values('aAa');
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insert into t1 values('aaa');
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insert into t1 values('AAA');
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select * from t1 order by a;
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a
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AAA
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aAa
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aaa
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select * from t1 where a = 'aAa';
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a
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aAa
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select * from t1 where a = 'aaa';
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a
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aaa
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select * from t1 where a = 'AaA';
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a
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select * from t1 where a = 'AAA';
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a
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AAA
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drop table t1;
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create table t1 (
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a char(3) character set latin1 collate latin1_swedish_ci primary key
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) engine=ndb;
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insert into t1 values('aAa');
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insert into t1 values('aaa');
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ERROR 23000: Duplicate entry 'aaa' for key 'PRIMARY'
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insert into t1 values('AAA');
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ERROR 23000: Duplicate entry 'AAA' for key 'PRIMARY'
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select * from t1 order by a;
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a
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aAa
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select * from t1 where a = 'aAa';
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a
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aAa
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select * from t1 where a = 'aaa';
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a
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aAa
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select * from t1 where a = 'AaA';
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a
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aAa
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select * from t1 where a = 'AAA';
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a
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aAa
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drop table t1;
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create table t1 (
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a varchar(20) character set latin1 collate latin1_swedish_ci primary key
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) engine=ndb;
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insert into t1 values ('A'),('b '),('C '),('d '),('E'),('f');
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insert into t1 values('b');
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ERROR 23000: Duplicate entry 'b' for key 'PRIMARY'
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insert into t1 values('a ');
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ERROR 23000: Duplicate entry 'a ' for key 'PRIMARY'
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select a,length(a) from t1 order by a;
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a length(a)
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A 1
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b 2
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C 3
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d 7
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E 1
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f 1
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select a,length(a) from t1 order by a desc;
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a length(a)
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f 1
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E 1
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d 7
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C 3
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b 2
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A 1
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select * from t1 where a = 'a';
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a
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A
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select * from t1 where a = 'a ';
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a
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A
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select * from t1 where a = 'd';
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a
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d
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drop table t1;
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create table t1 (
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p int primary key,
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a char(3) character set latin1 collate latin1_bin not null,
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unique key(a)
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) engine=ndb;
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insert into t1 values(1, 'aAa');
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insert into t1 values(2, 'aaa');
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insert into t1 values(3, 'AAA');
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select * from t1 order by p;
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p a
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1 aAa
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2 aaa
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3 AAA
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select * from t1 where a = 'aAa';
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p a
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1 aAa
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select * from t1 where a = 'aaa';
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p a
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2 aaa
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select * from t1 where a = 'AaA';
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p a
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select * from t1 where a = 'AAA';
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p a
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3 AAA
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drop table t1;
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create table t1 (
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p int primary key,
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a char(3) character set latin1 collate latin1_swedish_ci not null,
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unique key(a)
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) engine=ndb;
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insert into t1 values(1, 'aAa');
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insert into t1 values(2, 'aaa');
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ERROR 23000: Duplicate entry '2' for key 'PRIMARY'
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insert into t1 values(3, 'AAA');
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ERROR 23000: Duplicate entry '3' for key 'PRIMARY'
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select * from t1 order by p;
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p a
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1 aAa
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select * from t1 where a = 'aAa';
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p a
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1 aAa
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select * from t1 where a = 'aaa';
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p a
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1 aAa
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select * from t1 where a = 'AaA';
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p a
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1 aAa
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select * from t1 where a = 'AAA';
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p a
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1 aAa
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drop table t1;
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create table t1 (
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p int primary key,
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a varchar(20) character set latin1 collate latin1_swedish_ci not null,
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unique key(a)
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) engine=ndb;
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insert into t1 values (1,'A'),(2,'b '),(3,'C '),(4,'d '),(5,'E'),(6,'f');
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insert into t1 values(99,'b');
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ERROR 23000: Duplicate entry '99' for key 'PRIMARY'
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insert into t1 values(99,'a ');
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ERROR 23000: Duplicate entry '99' for key 'PRIMARY'
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select a,length(a) from t1 order by a;
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a length(a)
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A 1
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b 2
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C 3
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d 7
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E 1
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f 1
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select a,length(a) from t1 order by a desc;
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a length(a)
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f 1
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E 1
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d 7
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C 3
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b 2
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A 1
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select * from t1 where a = 'a';
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p a
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1 A
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select * from t1 where a = 'a ';
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p a
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1 A
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select * from t1 where a = 'd';
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p a
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4 d
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drop table t1;
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create table t1 (
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p int primary key,
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a char(3) character set latin1 collate latin1_bin not null,
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index(a)
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) engine=ndb;
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insert into t1 values(1, 'aAa');
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insert into t1 values(2, 'aaa');
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insert into t1 values(3, 'AAA');
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insert into t1 values(4, 'aAa');
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insert into t1 values(5, 'aaa');
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insert into t1 values(6, 'AAA');
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select * from t1 order by p;
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p a
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1 aAa
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2 aaa
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3 AAA
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4 aAa
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5 aaa
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6 AAA
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explain select * from t1 where a = 'zZz' order by p;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 const a NULL NULL NULL 1
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select * from t1 where a = 'aAa' order by p;
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p a
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1 aAa
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4 aAa
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select * from t1 where a = 'aaa' order by p;
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p a
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2 aaa
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5 aaa
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select * from t1 where a = 'AaA' order by p;
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p a
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select * from t1 where a = 'AAA' order by p;
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p a
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3 AAA
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6 AAA
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drop table t1;
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create table t1 (
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p int primary key,
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a char(3) character set latin1 collate latin1_swedish_ci not null,
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index(a)
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) engine=ndb;
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insert into t1 values(1, 'aAa');
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insert into t1 values(2, 'aaa');
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insert into t1 values(3, 'AAA');
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insert into t1 values(4, 'aAa');
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insert into t1 values(5, 'aaa');
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insert into t1 values(6, 'AAA');
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select * from t1 order by p;
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p a
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1 aAa
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2 aaa
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3 AAA
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4 aAa
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5 aaa
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6 AAA
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explain select * from t1 where a = 'zZz' order by p;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 const a NULL NULL NULL 1
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select * from t1 where a = 'aAa' order by p;
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p a
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1 aAa
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2 aaa
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3 AAA
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4 aAa
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5 aaa
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6 AAA
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select * from t1 where a = 'aaa' order by p;
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p a
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1 aAa
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2 aaa
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3 AAA
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4 aAa
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5 aaa
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6 AAA
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select * from t1 where a = 'AaA' order by p;
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p a
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1 aAa
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2 aaa
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3 AAA
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4 aAa
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5 aaa
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6 AAA
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select * from t1 where a = 'AAA' order by p;
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p a
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1 aAa
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2 aaa
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3 AAA
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4 aAa
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5 aaa
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6 AAA
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drop table t1;
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create table t1 (
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p int primary key,
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a varchar(20) character set latin1 collate latin1_swedish_ci not null,
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index(a, p)
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) engine=ndb;
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insert into t1 values (1,'A'),(2,'b '),(3,'C '),(4,'d '),(5,'E'),(6,'f');
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insert into t1 values (7,'a'),(8,'B '),(9,'c '),(10,'D'),(11,'e'),(12,'F ');
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select p,a,length(a) from t1 order by a, p;
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p a length(a)
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1 A 1
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7 a 1
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2 b 2
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8 B 2
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3 C 3
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9 c 3
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4 d 7
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10 D 1
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5 E 1
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11 e 1
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6 f 1
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12 F 3
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select * from t1 where a = 'a ' order by a desc, p desc;
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p a
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7 a
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1 A
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select * from t1 where a >= 'D' order by a, p;
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p a
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4 d
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10 D
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5 E
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11 e
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6 f
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12 F
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select * from t1 where a < 'D' order by a, p;
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p a
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1 A
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7 a
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2 b
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8 B
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3 C
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9 c
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select count(*) from t1 x, t1 y, t1 z where x.a = y.a and y.a = z.a;
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count(*)
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48
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drop table t1;
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create table t1 (
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a char(10) primary key
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) engine=ndbcluster default charset=latin1;
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insert into t1 values ('aaabb');
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select * from t1;
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a
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aaabb
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replace into t1 set a = 'AAABB';
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select * from t1;
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a
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AAABB
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replace into t1 set a = 'aAaBb';
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select * from t1;
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a
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aAaBb
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replace into t1 set a = 'aaabb';
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select * from t1;
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a
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aaabb
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drop table t1;
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