mirror of
https://github.com/MariaDB/server.git
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202 lines
3.8 KiB
Plaintext
202 lines
3.8 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 1
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insert into t1 values('AAA');
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ERROR 23000: Duplicate entry 'AAA' for key 1
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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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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 1
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insert into t1 values(3, 'AAA');
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ERROR 23000: Duplicate entry '3' for key 1
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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 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 ref a a 3 const 10 Using where; Using filesort
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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 ref a a 3 const 10 Using where; Using filesort
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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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a varchar(10) primary key
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) engine=ndb;
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insert into t1 values ('jonas % ');
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replace into t1 values ('jonas % ');
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replace into t1 values ('jonas % ');
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select * from t1;
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a
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jonas %
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drop table t1;
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