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ea0be9e2d6
Allow ALGORITHM=INSTANT (or avoid touching any data) when changing the collation, or in some cases, the character set, of a non-indexed CHAR or VARCHAR column. There is no penalty for subsequent DDL or DML operations, and compatibility with older MariaDB versions will be unaffected. Character sets may be changed when the old encoding is compatible with the new one. For example, changing from ASCII to anything ASCII-based, or from 3-byte to 4-byte UTF-8 can sometimes be performed instantly. This is joint work with Eugene Kosov. The test cases as well as ALTER_CONVERT_TO, charsets_are_compatible(), Type_handler::Charsets_are_compatible() are his work. The Field_str::is_equal(), Field_varstring::is_equal() and the InnoDB changes were mostly rewritten by me due to conflicts with MDEV-15563. Limitations: Changes of indexed columns will still require ALGORITHM=COPY. We should allow ALGORITHM=NOCOPY and allow the indexes to be rebuilt inside the storage engine, without copying the entire table. Instant column size changes (in bytes) are not supported by all storage engines. Instant CHAR column changes are only allowed for InnoDB ROW_FORMAT=REDUNDANT. We could allow this for InnoDB when the CHAR internally uses a variable-length encoding, say, when converting from 3-byte UTF-8 to 4-byte UTF-8. Instant VARCHAR column changes are allowed for InnoDB ROW_FORMAT=REDUNDANT, and for others only if the size in bytes does not change from 128..255 bytes to more than 256 bytes. Inside InnoDB, this slightly changes the way how MDEV-15563 works and fixes the result of the innodb.instant_alter_extend test. We change the way how ALTER_COLUMN_EQUAL_PACK_LENGTH_EXT is handled. All column extension, type changes and renaming now go through a common route, except when ctx->is_instant() is in effect, for example, instant ADD or DROP COLUMN has been initiated. Only in that case we will go through innobase_instant_try() and rewrite all column metadata. get_type(field, prtype, mtype, len): Convert a SQL data type into InnoDB column metadata. innobase_rename_column_try(): Remove the update of SYS_COLUMNS. innobase_rename_or_enlarge_column_try(): New function, replacing part of innobase_rename_column_try() and all of innobase_enlarge_column_try(). Also changes column types. innobase_rename_or_enlarge_columns_cache(): Also change the column type.
539 lines
20 KiB
Plaintext
539 lines
20 KiB
Plaintext
--source include/innodb_row_format.inc
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#--source include/innodb_page_size.inc
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--let $row_format= `SELECT @@GLOBAL.innodb_default_row_format`
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set names utf8;
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create table no_rebuild (
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a char(150) charset utf8mb3 collate utf8mb3_general_ci
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) engine=innodb;
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create table rebuild (
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a varchar(150) charset ascii
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) engine=innodb;
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set @id = (select table_id from information_schema.innodb_sys_tables
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where name = 'test/no_rebuild');
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select name, prtype, len from information_schema.innodb_sys_columns
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where table_id = @id;
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select c.prtype, c.len from information_schema.innodb_sys_columns as c inner join information_schema.innodb_sys_tables t on c.table_id = t.table_id
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where t.name = 'test/rebuild' and c.name = 'a';
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alter table no_rebuild
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change a a char(150) charset utf8mb3 collate utf8mb3_spanish_ci,
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algorithm=inplace;
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alter table rebuild
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change a a varchar(150) charset latin1 not null default 'asdf',
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algorithm=inplace;
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select name, prtype, len from information_schema.innodb_sys_columns
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where table_id = @id;
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select c.prtype, c.len from information_schema.innodb_sys_columns as c inner join information_schema.innodb_sys_tables t on c.table_id = t.table_id
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where t.name = 'test/rebuild' and c.name = 'a';
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drop table no_rebuild, rebuild;
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create table supported_types (
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id int primary key auto_increment,
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a varchar(150) charset ascii,
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b text(150) charset ascii,
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c text charset ascii,
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d tinytext charset ascii,
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e mediumtext charset ascii,
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f longtext charset ascii
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) engine=innodb;
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alter table supported_types
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convert to charset latin1,
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algorithm=instant;
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drop table supported_types;
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create table various_cases (
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a char(150) charset ascii,
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b varchar(150) as (a) virtual,
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c varchar(150) as (a) persistent
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) engine=innodb;
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alter table various_cases
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change a a char(150) charset latin1,
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algorithm=inplace;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table various_cases
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change a a varchar(222),
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algorithm=inplace;
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alter table various_cases
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change b b varchar(150) as (a) virtual,
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algorithm=inplace;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED
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alter table various_cases
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change c c varchar(150) as (a) persistent,
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algorithm=inplace;
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# Can not grow storage in bytes from CHAR
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table various_cases
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modify a char(150) charset utf8mb4,
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algorithm=instant;
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drop table various_cases;
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create table all_texts (
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a tinytext charset ascii,
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b text charset ascii,
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c mediumtext charset ascii,
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d longtext charset ascii,
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footer int
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) engine=innodb;
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alter table all_texts
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convert to charset latin1 collate latin1_general_ci,
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algorithm=instant;
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drop table all_texts;
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create table all_binaries (
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a tinyblob,
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b blob,
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c mediumblob,
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d longblob,
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e varbinary(150),
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f binary(150)
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) engine=innodb;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_binaries modify a tinytext, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_binaries modify b text, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_binaries modify c mediumtext, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_binaries modify d longtext, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_binaries modify e varchar(150), algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_binaries modify f char(150), algorithm=instant;
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drop table all_binaries;
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create table all_strings (
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a tinytext,
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b text,
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c mediumtext,
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d longtext,
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e varchar(150),
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f char(150)
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) engine=innodb;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_strings modify a tinyblob, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_strings modify b blob, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_strings modify c mediumblob, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_strings modify d longblob, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_strings modify e varbinary(150), algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_strings modify f binary(150), algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_strings modify a tinytext charset binary, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_strings modify b text charset binary, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_strings modify c mediumtext charset binary, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_strings modify d longtext charset binary, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_strings modify e varchar(150) charset binary, algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table all_strings modify f char(150) charset binary, algorithm=instant;
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drop table all_strings;
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create table key_part_change (
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a char(150) charset ascii,
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b char(150) charset ascii,
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c char(150) charset ascii,
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unique key ab (a,b)
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) engine=innodb;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table key_part_change
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modify a char(150) charset utf8mb4,
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drop index ab,
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add unique key ab(a,c),
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algorithm=instant;
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drop table key_part_change;
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create table key_part_change_and_rename (
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a char(100) charset ascii,
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b char(100) charset ascii,
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unique key ab (a,b)
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) engine=innodb;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table key_part_change_and_rename
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change a b char(100) charset utf8mb4,
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change b a char(100) charset utf8mb4,
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drop index ab,
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add unique key ab(a,b),
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algorithm=instant;
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drop table key_part_change_and_rename;
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create table enum_and_set (
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a enum('one', 'two') charset utf8mb3,
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b set('three', 'four') charset utf8mb3
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) engine=innodb;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table enum_and_set
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modify a enum('one', 'two') charset utf8mb4,
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algorithm=instant;
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table enum_and_set
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modify b enum('three', 'four') charset utf8mb4,
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algorithm=instant;
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drop table enum_and_set;
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create table compressed (
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a varchar(255) charset utf8mb3 compressed
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) engine=innodb;
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insert into compressed values ('AAA'), ('bbb'), ('CCC');
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alter table compressed
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modify a varchar(255) charset utf8mb4 compressed,
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algorithm=instant;
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select * from compressed;
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check table compresed;
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drop table compressed;
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create table key_part_bug (
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id int primary key auto_increment,
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a varchar(150) charset utf8mb3 unique key
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) engine=innodb;
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alter table key_part_bug
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modify a varchar(150) charset utf8mb4,
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algorithm=instant;
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drop table key_part_bug;
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create table latin1_swedish_special_case (
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copy1 varchar(150) charset ascii collate ascii_general_ci,
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copy2 char(150) charset ascii collate ascii_general_ci,
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instant1 varchar(150) charset ascii collate ascii_general_ci,
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instant2 char(150) charset ascii collate ascii_general_ci
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) engine=innodb;
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select c.name, c.prtype, c.mtype, c.len from information_schema.innodb_sys_columns as c inner join information_schema.innodb_sys_tables t on c.table_id = t.table_id
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where t.name = 'test/latin1_swedish_special_case';
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alter table latin1_swedish_special_case
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modify copy1 varchar(150) charset latin1 collate latin1_swedish_ci,
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modify copy2 char(150) charset latin1 collate latin1_swedish_ci,
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algorithm=copy;
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alter table latin1_swedish_special_case
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modify instant1 varchar(150) charset latin1 collate latin1_swedish_ci,
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modify instant2 char(150) charset latin1 collate latin1_swedish_ci,
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algorithm=instant;
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select c.name, c.prtype, c.mtype, c.len from information_schema.innodb_sys_columns as c inner join information_schema.innodb_sys_tables t on c.table_id = t.table_id
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where t.name = 'test/latin1_swedish_special_case';
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alter table latin1_swedish_special_case
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modify copy1 varchar(150) charset latin1 collate latin1_general_ci,
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modify copy2 char(150) charset latin1 collate latin1_general_ci,
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algorithm=copy;
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alter table latin1_swedish_special_case
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modify instant1 varchar(150) charset latin1 collate latin1_general_ci,
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modify instant2 char(150) charset latin1 collate latin1_general_ci,
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algorithm=instant;
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select c.name, c.prtype, c.mtype, c.len from information_schema.innodb_sys_columns as c inner join information_schema.innodb_sys_tables t on c.table_id = t.table_id
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where t.name = 'test/latin1_swedish_special_case';
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drop table latin1_swedish_special_case;
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create table regression (a varchar(100) charset utf8mb3 primary key, b int) engine=innodb;
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alter table regression convert to character set utf8mb4;
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drop table regression;
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# ROW_FORMAT=DYNAMIC limitation:
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# size in bytes cannot be increased from less of equal that 255 to more than 255
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create table boundary_255 (
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a varchar(50) charset ascii,
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b varchar(200) charset ascii,
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c varchar(300) charset ascii
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) engine=innodb;
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alter table boundary_255
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modify a varchar(50) charset utf8mb3,
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algorithm=instant;
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if ($row_format == 'redundant') {
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alter table boundary_255
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modify b varchar(200) charset utf8mb3,
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algorithm=instant;
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}
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if ($row_format != 'redundant') {
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--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
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alter table boundary_255
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modify b varchar(200) charset utf8mb3,
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algorithm=instant;
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}
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alter table boundary_255
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modify c varchar(300) charset utf8mb3,
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algorithm=instant;
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drop table boundary_255;
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create table fully_compatible (
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id int auto_increment unique key,
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from_charset char(255),
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from_collate char(255),
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to_charset char(255),
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to_collate char(255)
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);
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insert into fully_compatible (from_charset, from_collate, to_charset, to_collate) values
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('utf8mb3', 'utf8mb3_general_ci', 'utf8mb4', 'utf8mb4_general_ci'),
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('utf8mb3', 'utf8mb3_bin', 'utf8mb4', 'utf8mb4_bin'),
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('utf8mb3', 'utf8mb3_unicode_ci', 'utf8mb4', 'utf8mb4_unicode_ci'),
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('utf8mb3', 'utf8mb3_icelandic_ci', 'utf8mb4', 'utf8mb4_icelandic_ci'),
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('utf8mb3', 'utf8mb3_latvian_ci', 'utf8mb4', 'utf8mb4_latvian_ci'),
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('utf8mb3', 'utf8mb3_romanian_ci', 'utf8mb4', 'utf8mb4_romanian_ci'),
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('utf8mb3', 'utf8mb3_slovenian_ci', 'utf8mb4', 'utf8mb4_slovenian_ci'),
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('utf8mb3', 'utf8mb3_polish_ci', 'utf8mb4', 'utf8mb4_polish_ci'),
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('utf8mb3', 'utf8mb3_estonian_ci', 'utf8mb4', 'utf8mb4_estonian_ci'),
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('utf8mb3', 'utf8mb3_spanish_ci', 'utf8mb4', 'utf8mb4_spanish_ci'),
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('utf8mb3', 'utf8mb3_swedish_ci', 'utf8mb4', 'utf8mb4_swedish_ci'),
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('utf8mb3', 'utf8mb3_turkish_ci', 'utf8mb4', 'utf8mb4_turkish_ci'),
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('utf8mb3', 'utf8mb3_czech_ci', 'utf8mb4', 'utf8mb4_czech_ci'),
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('utf8mb3', 'utf8mb3_danish_ci', 'utf8mb4', 'utf8mb4_danish_ci'),
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('utf8mb3', 'utf8mb3_lithuanian_ci', 'utf8mb4', 'utf8mb4_lithuanian_ci'),
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('utf8mb3', 'utf8mb3_slovak_ci', 'utf8mb4', 'utf8mb4_slovak_ci'),
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('utf8mb3', 'utf8mb3_spanish2_ci', 'utf8mb4', 'utf8mb4_spanish2_ci'),
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('utf8mb3', 'utf8mb3_roman_ci', 'utf8mb4', 'utf8mb4_roman_ci'),
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('utf8mb3', 'utf8mb3_persian_ci', 'utf8mb4', 'utf8mb4_persian_ci'),
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('utf8mb3', 'utf8mb3_esperanto_ci', 'utf8mb4', 'utf8mb4_esperanto_ci'),
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('utf8mb3', 'utf8mb3_hungarian_ci', 'utf8mb4', 'utf8mb4_hungarian_ci'),
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('utf8mb3', 'utf8mb3_sinhala_ci', 'utf8mb4', 'utf8mb4_sinhala_ci'),
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('utf8mb3', 'utf8mb3_german2_ci', 'utf8mb4', 'utf8mb4_german2_ci'),
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('utf8mb3', 'utf8mb3_croatian_mysql561_ci', 'utf8mb4', 'utf8mb4_croatian_mysql561_ci'),
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('utf8mb3', 'utf8mb3_unicode_520_ci', 'utf8mb4', 'utf8mb4_unicode_520_ci'),
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('utf8mb3', 'utf8mb3_vietnamese_ci', 'utf8mb4', 'utf8mb4_vietnamese_ci'),
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('utf8mb3', 'utf8mb3_croatian_ci', 'utf8mb4', 'utf8mb4_croatian_ci'),
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('utf8mb3', 'utf8mb3_myanmar_ci', 'utf8mb4', 'utf8mb4_myanmar_ci'),
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('utf8mb3', 'utf8mb3_thai_520_w2', 'utf8mb4', 'utf8mb4_thai_520_w2'),
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('utf8mb3', 'utf8mb3_general_nopad_ci', 'utf8mb4', 'utf8mb4_general_nopad_ci'),
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('utf8mb3', 'utf8mb3_nopad_bin', 'utf8mb4', 'utf8mb4_nopad_bin'),
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('utf8mb3', 'utf8mb3_unicode_nopad_ci', 'utf8mb4', 'utf8mb4_unicode_nopad_ci'),
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('utf8mb3', 'utf8mb3_unicode_520_nopad_ci', 'utf8mb4', 'utf8mb4_unicode_520_nopad_ci'),
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('ucs2', 'ucs2_general_ci', 'utf16', 'utf16_general_ci'),
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('ucs2', 'ucs2_unicode_ci', 'utf16', 'utf16_unicode_ci'),
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('ucs2', 'ucs2_icelandic_ci', 'utf16', 'utf16_icelandic_ci'),
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('ucs2', 'ucs2_latvian_ci', 'utf16', 'utf16_latvian_ci'),
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('ucs2', 'ucs2_romanian_ci', 'utf16', 'utf16_romanian_ci'),
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('ucs2', 'ucs2_slovenian_ci', 'utf16', 'utf16_slovenian_ci'),
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('ucs2', 'ucs2_polish_ci', 'utf16', 'utf16_polish_ci'),
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('ucs2', 'ucs2_estonian_ci', 'utf16', 'utf16_estonian_ci'),
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('ucs2', 'ucs2_spanish_ci', 'utf16', 'utf16_spanish_ci'),
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('ucs2', 'ucs2_general_ci', 'utf16', 'utf16_general_ci'),
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('ascii', 'ascii_general_ci', 'utf8mb3', 'utf8mb3_general_ci'),
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('ascii', 'ascii_general_ci', 'utf8mb4', 'utf8mb4_general_ci'),
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('ascii', 'ascii_general_ci', 'latin1', 'latin1_general_ci'),
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('ascii', 'ascii_bin', 'latin1', 'latin1_bin'),
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('ascii', 'ascii_nopad_bin', 'latin1', 'latin1_nopad_bin'),
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('ascii', 'ascii_general_ci', 'latin2', 'latin2_general_ci'),
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('ascii', 'ascii_general_ci', 'latin7', 'latin7_general_ci'),
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('ascii', 'ascii_bin', 'koi8u', 'koi8u_bin'),
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('ascii', 'ascii_bin', 'ujis', 'ujis_bin'),
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('ascii', 'ascii_bin', 'big5', 'big5_bin'),
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('ascii', 'ascii_bin', 'gbk', 'gbk_bin')
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;
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let $data_size = `select count(*) from fully_compatible`;
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let $counter = 1;
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while ($counter <= $data_size) {
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let $from_charset = `select from_charset from fully_compatible where id = $counter`;
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let $from_collate = `select from_collate from fully_compatible where id = $counter`;
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|
let $to_charset = `select to_charset from fully_compatible where id = $counter`;
|
|
let $to_collate = `select to_collate from fully_compatible where id = $counter`;
|
|
|
|
eval create table tmp (
|
|
a varchar(50) charset $from_charset collate $from_collate,
|
|
b varchar(50) charset $from_charset collate $from_collate primary key
|
|
) engine=innodb;
|
|
|
|
insert into tmp values ('AAA', 'AAA'), ('bbb', 'bbb');
|
|
|
|
eval alter table tmp
|
|
change a a varchar(50) charset $to_charset collate $to_collate,
|
|
modify b varchar(50) charset $to_charset collate $to_collate,
|
|
algorithm=instant;
|
|
|
|
check table tmp;
|
|
|
|
drop table tmp;
|
|
|
|
inc $counter;
|
|
}
|
|
|
|
drop table fully_compatible;
|
|
|
|
|
|
create table compatible_without_index (
|
|
id int auto_increment unique key,
|
|
from_charset char(255),
|
|
from_collate char(255),
|
|
to_charset char(255),
|
|
to_collate char(255)
|
|
);
|
|
|
|
insert into compatible_without_index (from_charset, from_collate, to_charset, to_collate) values
|
|
('ascii', 'ascii_general_ci', 'utf8mb3', 'utf8mb3_swedish_ci'),
|
|
('ascii', 'ascii_bin', 'latin1', 'latin1_swedish_ci'),
|
|
('ascii', 'ascii_general_nopad_ci', 'latin1', 'latin1_swedish_ci'),
|
|
('ascii', 'ascii_nopad_bin', 'latin1', 'latin1_swedish_ci'),
|
|
|
|
('ascii', 'ascii_general_ci', 'koi8u', 'koi8u_bin'),
|
|
('ascii', 'ascii_general_nopad_ci', 'koi8u', 'koi8u_bin'),
|
|
('ascii', 'ascii_nopad_bin', 'koi8u', 'koi8u_bin'),
|
|
|
|
('ascii', 'ascii_general_ci', 'latin1', 'latin1_swedish_ci'),
|
|
('ascii', 'ascii_bin', 'utf8mb3', 'utf8mb3_swedish_ci'),
|
|
('ascii', 'ascii_general_nopad_ci', 'utf8mb3', 'utf8mb3_swedish_ci'),
|
|
('ascii', 'ascii_nopad_bin', 'utf8mb3', 'utf8mb3_swedish_ci'),
|
|
|
|
('ascii', 'ascii_general_ci', 'utf8mb4', 'utf8mb4_danish_ci'),
|
|
('ascii', 'ascii_bin', 'utf8mb4', 'utf8mb4_danish_ci'),
|
|
('ascii', 'ascii_general_nopad_ci', 'utf8mb4', 'utf8mb4_danish_ci'),
|
|
('ascii', 'ascii_nopad_bin', 'utf8mb4', 'utf8mb4_danish_ci'),
|
|
|
|
('utf8mb3', 'utf8mb3_general_ci', 'utf8mb4', 'utf8mb4_vietnamese_ci'),
|
|
('utf8mb3', 'utf8mb3_bin', 'utf8mb4', 'utf8mb4_vietnamese_ci'),
|
|
('utf8mb3', 'utf8mb3_general_nopad_ci', 'utf8mb4', 'utf8mb4_vietnamese_ci'),
|
|
('utf8mb3', 'utf8mb3_nopad_bin', 'utf8mb4', 'utf8mb4_vietnamese_ci'),
|
|
|
|
('ascii', 'ascii_general_ci', 'gbk', 'gbk_chinese_ci'),
|
|
('ascii', 'ascii_general_ci', 'gbk', 'gbk_chinese_nopad_ci'),
|
|
|
|
('ucs2', 'ucs2_myanmar_ci', 'utf16', 'utf16_thai_520_w2'),
|
|
('ucs2', 'ucs2_general_ci', 'utf16', 'utf16_unicode_nopad_ci'),
|
|
('ucs2', 'ucs2_general_mysql500_ci', 'utf16', 'utf16_spanish2_ci'),
|
|
|
|
('ascii', 'ascii_general_ci', 'ascii', 'ascii_bin'),
|
|
('utf8mb3', 'utf8mb3_roman_ci', 'utf8mb3', 'utf8mb3_lithuanian_ci'),
|
|
('utf8mb4', 'utf8mb4_thai_520_w2', 'utf8mb4', 'utf8mb4_persian_ci'),
|
|
('utf8mb3', 'utf8mb3_myanmar_ci', 'utf8mb4', 'utf8mb4_german2_ci'),
|
|
('utf8mb3', 'utf8mb3_general_ci', 'utf8mb3', 'utf8mb3_unicode_ci'),
|
|
('latin1', 'latin1_general_cs', 'latin1', 'latin1_general_ci'),
|
|
('ascii', 'ascii_general_ci', 'ujis', 'ujis_japanese_ci'),
|
|
('ascii', 'ascii_general_ci', 'big5', 'big5_chinese_ci'),
|
|
('ascii', 'ascii_general_ci', 'latin2', 'latin2_croatian_ci'),
|
|
('ascii', 'ascii_general_ci', 'latin7', 'latin7_estonian_cs'),
|
|
('utf16', 'utf16_general_ci', 'utf16', 'utf16_german2_ci')
|
|
;
|
|
|
|
let $data_size = `select count(*) from compatible_without_index`;
|
|
let $counter = 1;
|
|
|
|
while ($counter <= $data_size) {
|
|
let $from_charset = `select from_charset from compatible_without_index where id = $counter`;
|
|
let $from_collate = `select from_collate from compatible_without_index where id = $counter`;
|
|
let $to_charset = `select to_charset from compatible_without_index where id = $counter`;
|
|
let $to_collate = `select to_collate from compatible_without_index where id = $counter`;
|
|
|
|
eval create table tmp (
|
|
a varchar(50) charset $from_charset collate $from_collate,
|
|
b varchar(50) charset $from_charset collate $from_collate unique key,
|
|
c varchar(50) charset $from_charset collate $from_collate primary key
|
|
) engine=innodb;
|
|
|
|
eval alter table tmp
|
|
change a a varchar(50) charset $to_charset collate $to_collate,
|
|
algorithm=instant;
|
|
|
|
--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
|
|
eval alter table tmp
|
|
modify b varchar(50) charset $to_charset collate $to_collate,
|
|
algorithm=instant;
|
|
|
|
--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
|
|
eval alter table tmp
|
|
modify c varchar(50) charset $to_charset collate $to_collate,
|
|
algorithm=instant;
|
|
|
|
drop table tmp;
|
|
|
|
inc $counter;
|
|
}
|
|
|
|
drop table compatible_without_index;
|
|
|
|
|
|
create table fully_incompatible (
|
|
id int auto_increment unique key,
|
|
from_charset char(255),
|
|
from_collate char(255),
|
|
to_charset char(255),
|
|
to_collate char(255)
|
|
);
|
|
|
|
insert into fully_incompatible (from_charset, from_collate, to_charset, to_collate) values
|
|
('utf8mb4', 'utf8mb4_general_ci', 'utf8mb3', 'utf8mb3_general_ci'),
|
|
('utf8mb4', 'utf8mb4_general_ci', 'ascii', 'ascii_general_ci'),
|
|
('utf8mb3', 'utf8mb3_general_ci', 'ascii', 'ascii_general_ci'),
|
|
('utf8mb3', 'utf8mb3_general_ci', 'latin1', 'latin1_general_ci'),
|
|
('utf16', 'utf16_general_ci', 'utf32', 'utf32_general_ci'),
|
|
('latin1', 'latin1_general_ci', 'ascii', 'ascii_general_ci'),
|
|
('ascii', 'ascii_general_ci', 'swe7', 'swe7_swedish_ci'),
|
|
('eucjpms', 'eucjpms_japanese_nopad_ci', 'geostd8', 'geostd8_general_ci'),
|
|
('latin1', 'latin1_general_ci', 'utf16', 'utf16_general_ci')
|
|
;
|
|
|
|
let $data_size = `select count(*) from fully_incompatible`;
|
|
let $counter = 1;
|
|
|
|
while ($counter <= $data_size) {
|
|
let $from_charset = `select from_charset from fully_incompatible where id = $counter`;
|
|
let $from_collate = `select from_collate from fully_incompatible where id = $counter`;
|
|
let $to_charset = `select to_charset from fully_incompatible where id = $counter`;
|
|
let $to_collate = `select to_collate from fully_incompatible where id = $counter`;
|
|
|
|
eval create table tmp (
|
|
a varchar(150) charset $from_charset collate $from_collate,
|
|
b text(150) charset $from_charset collate $from_collate,
|
|
unique key b_idx (b(150))
|
|
) engine=innodb;
|
|
|
|
--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
|
|
eval alter table tmp
|
|
change a a varchar(150) charset $to_charset collate $to_collate,
|
|
algorithm=instant;
|
|
|
|
--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
|
|
eval alter table tmp
|
|
modify b text charset $to_charset collate $to_collate,
|
|
algorithm=instant;
|
|
|
|
drop table tmp;
|
|
|
|
inc $counter;
|
|
}
|
|
|
|
drop table fully_incompatible;
|