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MDEV-14904 Backport innodb_default_row_format

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InnoDB in Debian uses utf8mb4 as default character set since
version 10.0.20-2. This leads to major pain due to keys longer
than 767 bytes.

MariaDB 10.2 (and MySQL 5.7) introduced the setting
innodb_default_row_format that is DYNAMIC by default. These
versions also changed the default values of the parameters
innodb_large_prefix=ON and innodb_file_format=Barracuda.
This would allow longer column index prefixes to be created.
The original purpose of these parameters was to allow InnoDB
to be downgraded to MySQL 5.1, which is long out of support.

Every InnoDB version since MySQL 5.5 does support operation
with the relaxed limits.

We backport the parameter innodb_default_row_format to
MariaDB 10.1, but we will keep its default value at COMPACT.
This allows MariaDB 10.1 to be configured so that CREATE TABLE
is less likely to encounter a problem with the limitation:

	loose_innodb_large_prefix=ON
	loose_innodb_default_row_format=DYNAMIC

(Note that the setting innodb_large_prefix was deprecated in
MariaDB 10.2 and removed in MariaDB 10.3.)

The only observable difference in the behaviour with the default
settings should be that ROW_FORMAT=DYNAMIC tables can be created
both in the system tablespace and in .ibd files, no matter what
innodb_file_format has been assigned to. Unlike MariaDB 10.2,
we are not changing the default value of innodb_file_format,
so ROW_FORMAT=COMPRESSED tables cannot be created without
changing the parameter.
This commit is contained in:
Marko Mäkelä
2018-03-07 12:07:49 +02:00
parent 176d603cc7
commit 8ef727b3d0
26 changed files with 946 additions and 123 deletions
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14
mysql-test/suite/innodb_zip/t/innodb-create-options.test
View File

@ -244,10 +244,10 @@ CREATE TABLE t1 ( i INT ) ROW_FORMAT=COMPRESSED;
--replace_regex / - .*[0-9]*[)]/)/
SHOW WARNINGS;
--replace_regex / - .*[0-9]*[)]/)/
--error ER_CANT_CREATE_TABLE
CREATE TABLE t1 ( i INT ) ROW_FORMAT=DYNAMIC;
--replace_regex / - .*[0-9]*[)]/)/
SHOW WARNINGS;
SELECT TABLE_NAME,ROW_FORMAT,CREATE_OPTIONS FROM information_schema.tables WHERE TABLE_NAME = 't1';
DROP TABLE t1;
CREATE TABLE t1 ( i INT ) ROW_FORMAT=REDUNDANT;
SHOW WARNINGS;
SELECT TABLE_NAME,ROW_FORMAT,CREATE_OPTIONS FROM information_schema.tables WHERE TABLE_NAME = 't1';
@ -264,11 +264,10 @@ SHOW WARNINGS;
--error ER_ILLEGAL_HA_CREATE_OPTION
ALTER TABLE t1 ROW_FORMAT=COMPRESSED;
SHOW WARNINGS;
--error ER_ILLEGAL_HA_CREATE_OPTION
ALTER TABLE t1 ROW_FORMAT=DYNAMIC;
SHOW WARNINGS;
SET GLOBAL innodb_file_format=Barracuda;
DROP TABLE IF EXISTS t1;
DROP TABLE t1;
CREATE TABLE t1 ( i INT ) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=4;
SET GLOBAL innodb_file_format=Antelope;
ALTER TABLE t1 ADD COLUMN f1 INT;
@ -296,11 +295,10 @@ SHOW WARNINGS;
CREATE TABLE t1 ( i INT ) ROW_FORMAT=COMPRESSED;
--replace_regex / - .*[0-9]*[)]/)/
SHOW WARNINGS;
--replace_regex / - .*[0-9]*[)]/)/
--error ER_CANT_CREATE_TABLE
CREATE TABLE t1 ( i INT ) ROW_FORMAT=DYNAMIC;
--replace_regex / - .*[0-9]*[)]/)/
SHOW WARNINGS;
SELECT TABLE_NAME,ROW_FORMAT,CREATE_OPTIONS FROM information_schema.tables WHERE TABLE_NAME = 't1';
DROP TABLE t1;
CREATE TABLE t1 ( i INT ) ROW_FORMAT=REDUNDANT;
SHOW WARNINGS;
SELECT TABLE_NAME,ROW_FORMAT,CREATE_OPTIONS FROM information_schema.tables WHERE TABLE_NAME = 't1';
@ -317,9 +315,9 @@ SHOW WARNINGS;
--error ER_ILLEGAL_HA_CREATE_OPTION
ALTER TABLE t1 ROW_FORMAT=COMPRESSED;
SHOW WARNINGS;
--error ER_ILLEGAL_HA_CREATE_OPTION
ALTER TABLE t1 ROW_FORMAT=DYNAMIC;
SHOW WARNINGS;
SELECT TABLE_NAME,ROW_FORMAT,CREATE_OPTIONS FROM information_schema.tables WHERE TABLE_NAME = 't1';
ALTER TABLE t1 ROW_FORMAT=COMPACT;
SHOW WARNINGS;
SELECT TABLE_NAME,ROW_FORMAT,CREATE_OPTIONS FROM information_schema.tables WHERE TABLE_NAME = 't1';

9
mysql-test/suite/innodb_zip/t/innodb-zip.test
View File

@ -275,16 +275,14 @@ create table t6 (id int primary key) engine = innodb row_format = compressed;
--replace_regex / - .*[0-9]*[)]/)/
show warnings;
--replace_regex / - .*[0-9]*[)]/)/
--error ER_CANT_CREATE_TABLE
create table t7 (id int primary key) engine = innodb row_format = dynamic;
--replace_regex / - .*[0-9]*[)]/)/
show warnings;
create table t8 (id int primary key) engine = innodb row_format = compact;
create table t9 (id int primary key) engine = innodb row_format = redundant;
--replace_result 16384 {valid} 8192 {valid} 4096 {valid}
--eval $query_i_s
drop table t8, t9;
drop table t7, t8, t9;
#test valid values with innodb_file_format unset
set global innodb_file_per_table = on;
@ -312,17 +310,14 @@ show warnings;
create table t6 (id int primary key) engine = innodb row_format = compressed;
--replace_regex / - .*[0-9]*[)]/)/
show warnings;
--replace_regex / - .*[0-9]*[)]/)/
--error ER_CANT_CREATE_TABLE
create table t7 (id int primary key) engine = innodb row_format = dynamic;
--replace_regex / - .*[0-9]*[)]/)/
show warnings;
create table t8 (id int primary key) engine = innodb row_format = compact;
create table t9 (id int primary key) engine = innodb row_format = redundant;
--replace_result 16384 {valid} 8192 {valid} 4096 {valid}
--eval $query_i_s
drop table t8, t9;
drop table t7, t8, t9;
eval set global innodb_file_per_table=$per_table;
eval set global innodb_file_format=$format;