66 lines
2.2 KiB
Plaintext
66 lines
2.2 KiB
Plaintext
# prepare database
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create database collation_misc;
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use collation_misc;
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# ChangingCharsetToUtf8
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create table t1(a varchar(20) charset utf8);
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insert into t1 values ("t1_value");
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alter table t1 collate uTf8mB4_uNiCoDe_Ci charset Utf8mB4 charset uTF8Mb4 collate UTF8MB4_BiN;
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alter table t1 modify column a varchar(20) charset utf8mb4;
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select * from t1;
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create table t(a varchar(20) charset latin1);
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insert into t values ("t_value");
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alter table t modify column a varchar(20) charset latin1;
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select * from t;
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--error 8200
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alter table t modify column a varchar(20) charset utf8;
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--error 8200
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alter table t modify column a varchar(20) charset utf8mb4;
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--error 8200
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alter table t modify column a varchar(20) charset utf8 collate utf8_bin;
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--error 8200
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alter table t modify column a varchar(20) charset utf8mb4 collate utf8mb4_general_ci;
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--error 1273
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alter table t modify column a varchar(20) charset utf8mb4 collate utf8bin;
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--error 1302, 1273
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alter table t collate LATIN1_GENERAL_CI charset utf8 collate utf8_bin;
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--error 1253, 1273
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alter table t collate LATIN1_GENERAL_CI collate UTF8MB4_UNICODE_ci collate utf8_bin;
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# TestCharsetDatabase
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create database if not exists cd_test_utf8 CHARACTER SET utf8 COLLATE utf8_bin;
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--error 1273
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create database if not exists cd_test_latin1 CHARACTER SET latin1 COLLATE latin1_swedish_ci;
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use cd_test_utf8;
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select @@character_set_database;
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select @@collation_database;
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--error 1049
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use cd_test_latin1;
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select @@character_set_database;
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select @@collation_database;
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# DefaultDBAfterDropCurDB
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--error 1273
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create database if not exists test_db CHARACTER SET latin1 COLLATE latin1_swedish_ci;
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# CollationUnion
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with cte as (select cast('2010-09-09' as date) a union select '2010-09-09 ') select count(*) from cte;
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# Issue26989
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set names utf8mb4 collate utf8mb4_general_ci;
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select position('a' in 'AA');
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select locate('a', 'AA');
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select locate('a', 'a');
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set names utf8mb4;
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# CharacterSetCollations
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SELECT default_collate_name, maxlen FROM information_schema.character_sets ORDER BY character_set_name;
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SELECT character_set_name, id, sortlen FROM information_schema.collations ORDER BY collation_name, id;
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select * from information_schema.COLLATION_CHARACTER_SET_APPLICABILITY where COLLATION_NAME='utf8mb4_bin';
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# charset
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show charset;
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show collation;
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use test;
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