| Current Path : /home/usr.opt/mysql57/mysql-test/suite/innodb_zip/r/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //home/usr.opt/mysql57/mysql-test/suite/innodb_zip/r/index_large_prefix_8k.result |
SET default_storage_engine=InnoDB;
set global innodb_file_per_table=1;
### Test 1 ###
create table worklog5743(a TEXT not null, primary key (a(1000))) ROW_FORMAT=DYNAMIC;
show warnings;
Level Code Message
insert into worklog5743 values(repeat("a", 20000));
update worklog5743 set a = (repeat("b", 16000));
SET sql_mode= '';
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
create index idx on worklog5743(a(2000));
Warnings:
Warning 1071 Specified key was too long; max key length is 1536 bytes
show warnings;
Level Code Message
Warning 1071 Specified key was too long; max key length is 1536 bytes
SET sql_mode= default;
begin;
update worklog5743 set a = (repeat("x", 17000));
select @@session.tx_isolation;
@@session.tx_isolation
REPEATABLE-READ
Warnings:
Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead
select a = repeat("x", 17000) from worklog5743;
a = repeat("x", 17000)
0
select a = repeat("b", 16000) from worklog5743;
a = repeat("b", 16000)
1
SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
select @@session.tx_isolation;
@@session.tx_isolation
READ-UNCOMMITTED
Warnings:
Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead
select a = repeat("x", 17000) from worklog5743;
a = repeat("x", 17000)
1
rollback;
drop table worklog5743;
### Test 2 ###
create table worklog5743(a1 int, a2 TEXT not null) ROW_FORMAT=DYNAMIC;
show warnings;
Level Code Message
create index idx on worklog5743(a1, a2(1250));
show warnings;
Level Code Message
insert into worklog5743 values(9, repeat("a", 10000));
begin;
update worklog5743 set a1 = 1000;
select @@session.tx_isolation;
@@session.tx_isolation
REPEATABLE-READ
Warnings:
Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead
explain select a1, a2 = repeat("a", 10000) from worklog5743 where a1 = 9;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE worklog5743 NULL ref idx idx 5 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`worklog5743`.`a1` AS `a1`,(`test`.`worklog5743`.`a2` = repeat('a',10000)) AS `a2 = repeat("a", 10000)` from `test`.`worklog5743` where (`test`.`worklog5743`.`a1` = 9)
select a1, a2 = repeat("a", 10000) from worklog5743 where a1 = 9;
a1 a2 = repeat("a", 10000)
9 1
SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
select @@session.tx_isolation;
@@session.tx_isolation
READ-UNCOMMITTED
Warnings:
Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead
select a1, a2 = repeat("a", 10000) from worklog5743 where a1 = 9;
a1 a2 = repeat("a", 10000)
rollback;
drop table worklog5743;
### Test 3 ###
create table worklog5743(a1 int, a2 TEXT not null) ROW_FORMAT=DYNAMIC;
create index idx on worklog5743(a1, a2(50));
insert into worklog5743 values(9, repeat("a", 10000));
begin;
update worklog5743 set a1 = 1000;
select @@session.tx_isolation;
@@session.tx_isolation
REPEATABLE-READ
Warnings:
Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead
explain select a1, a2 = repeat("a", 10000) from worklog5743 where a1 = 9;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE worklog5743 NULL ref idx idx 5 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`worklog5743`.`a1` AS `a1`,(`test`.`worklog5743`.`a2` = repeat('a',10000)) AS `a2 = repeat("a", 10000)` from `test`.`worklog5743` where (`test`.`worklog5743`.`a1` = 9)
select a1, a2 = repeat("a", 10000) from worklog5743 where a1 = 9;
a1 a2 = repeat("a", 10000)
9 1
SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
select @@session.tx_isolation;
@@session.tx_isolation
READ-UNCOMMITTED
Warnings:
Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead
select a1, a2 = repeat("a", 10000) from worklog5743 where a1 = 9;
a1 a2 = repeat("a", 10000)
rollback;
drop table worklog5743;
### Test 4 ###
create table worklog5743_1(a1 int, a2 TEXT not null) KEY_BLOCK_SIZE=1;
create table worklog5743_2(a1 int, a2 TEXT not null) KEY_BLOCK_SIZE=2;
create table worklog5743_4(a1 int, a2 TEXT not null) KEY_BLOCK_SIZE=4;
create table worklog5743_8(a1 int, a2 TEXT, a3 TEXT) KEY_BLOCK_SIZE=8;
set global innodb_large_prefix=0;
Warnings:
Warning 131 Using innodb_large_prefix is deprecated and the parameter may be removed in future releases. See http://dev.mysql.com/doc/refman/5.7/en/innodb-file-format.html
create index idx1 on worklog5743_1(a2(4000));
ERROR 42000: Specified key was too long; max key length is 767 bytes
show warnings;
Level Code Message
Error 1071 Specified key was too long; max key length is 767 bytes
set global innodb_large_prefix=1;
Warnings:
Warning 131 Using innodb_large_prefix is deprecated and the parameter may be removed in future releases. See http://dev.mysql.com/doc/refman/5.7/en/innodb-file-format.html
create index idx2 on worklog5743_1(a2(4000));
ERROR 42000: Specified key was too long; max key length is 1536 bytes
show warnings;
Level Code Message
Error 1071 Specified key was too long; max key length is 1536 bytes
create index idx3 on worklog5743_1(a2(436));
ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 4030. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
show warnings;
Level Code Message
Error 1118 Row size too large. The maximum row size for the used table type, not counting BLOBs, is 4030. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
create index idx4 on worklog5743_1(a2(434));
show warnings;
Level Code Message
create index idx5 on worklog5743_1(a1, a2(430));
ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 4030. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
show warnings;
Level Code Message
Error 1118 Row size too large. The maximum row size for the used table type, not counting BLOBs, is 4030. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
create index idx6 on worklog5743_1(a1, a2(428));
show warnings;
Level Code Message
set global innodb_large_prefix=0;
Warnings:
Warning 131 Using innodb_large_prefix is deprecated and the parameter may be removed in future releases. See http://dev.mysql.com/doc/refman/5.7/en/innodb-file-format.html
SET sql_mode= '';
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
create index idx1 on worklog5743_2(a2(4000));
Warnings:
Warning 1071 Specified key was too long; max key length is 767 bytes
show warnings;
Level Code Message
Warning 1071 Specified key was too long; max key length is 767 bytes
set global innodb_large_prefix=1;
Warnings:
Warning 131 Using innodb_large_prefix is deprecated and the parameter may be removed in future releases. See http://dev.mysql.com/doc/refman/5.7/en/innodb-file-format.html
create index idx2 on worklog5743_2(a2(4000));
ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 4030. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
show warnings;
Level Code Message
Warning 1071 Specified key was too long; max key length is 1536 bytes
Error 1118 Row size too large. The maximum row size for the used table type, not counting BLOBs, is 4030. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
create index idx3 on worklog5743_2(a2(948));
ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 4030. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
show warnings;
Level Code Message
Error 1118 Row size too large. The maximum row size for the used table type, not counting BLOBs, is 4030. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
create index idx4 on worklog5743_2(a2(946));
show warnings;
Level Code Message
create index idx5 on worklog5743_2(a1, a2(942));
ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 4030. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
show warnings;
Level Code Message
Error 1118 Row size too large. The maximum row size for the used table type, not counting BLOBs, is 4030. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
create index idx6 on worklog5743_2(a1, a2(940));
show warnings;
Level Code Message
set global innodb_large_prefix=0;
Warnings:
Warning 131 Using innodb_large_prefix is deprecated and the parameter may be removed in future releases. See http://dev.mysql.com/doc/refman/5.7/en/innodb-file-format.html
create index idx1 on worklog5743_4(a2(4000));
Warnings:
Warning 1071 Specified key was too long; max key length is 767 bytes
show warnings;
Level Code Message
Warning 1071 Specified key was too long; max key length is 767 bytes
set global innodb_large_prefix=1;
Warnings:
Warning 131 Using innodb_large_prefix is deprecated and the parameter may be removed in future releases. See http://dev.mysql.com/doc/refman/5.7/en/innodb-file-format.html
create index idx3 on worklog5743_4(a2(1537));
Warnings:
Warning 1071 Specified key was too long; max key length is 1536 bytes
show warnings;
Level Code Message
Warning 1071 Specified key was too long; max key length is 1536 bytes
create index idx4 on worklog5743_4(a2(1536));
Warnings:
Warning 1831 Duplicate index 'idx4' defined on the table 'test.worklog5743_4'. This is deprecated and will be disallowed in a future release.
show warnings;
Level Code Message
Warning 1831 Duplicate index 'idx4' defined on the table 'test.worklog5743_4'. This is deprecated and will be disallowed in a future release.
create index idx5 on worklog5743_4(a1, a2(1533));
ERROR 42000: Specified key was too long; max key length is 1536 bytes
show warnings;
Level Code Message
Error 1071 Specified key was too long; max key length is 1536 bytes
create index idx6 on worklog5743_4(a1, a2(1532));
show warnings;
Level Code Message
set global innodb_large_prefix=0;
Warnings:
Warning 131 Using innodb_large_prefix is deprecated and the parameter may be removed in future releases. See http://dev.mysql.com/doc/refman/5.7/en/innodb-file-format.html
create index idx1 on worklog5743_8(a2(1000));
Warnings:
Warning 1071 Specified key was too long; max key length is 767 bytes
show warnings;
Level Code Message
Warning 1071 Specified key was too long; max key length is 767 bytes
set global innodb_large_prefix=1;
Warnings:
Warning 131 Using innodb_large_prefix is deprecated and the parameter may be removed in future releases. See http://dev.mysql.com/doc/refman/5.7/en/innodb-file-format.html
create index idx2 on worklog5743_8(a2(3073));
Warnings:
Warning 1071 Specified key was too long; max key length is 1536 bytes
show warnings;
Level Code Message
Warning 1071 Specified key was too long; max key length is 1536 bytes
create index idx3 on worklog5743_8(a2(3072));
Warnings:
Warning 1071 Specified key was too long; max key length is 1536 bytes
show warnings;
Level Code Message
Warning 1071 Specified key was too long; max key length is 1536 bytes
create index idx4 on worklog5743_8(a1, a2(1533));
ERROR 42000: Specified key was too long; max key length is 1536 bytes
show warnings;
Level Code Message
Error 1071 Specified key was too long; max key length is 1536 bytes
create index idx5 on worklog5743_8(a1, a2(1532));
show warnings;
Level Code Message
SET sql_mode= default;
insert into worklog5743_1 values(9, repeat("a", 10000));
insert into worklog5743_2 values(9, repeat("a", 10000));
insert into worklog5743_4 values(9, repeat("a", 10000));
insert into worklog5743_8 values(9, repeat("a", 10000), repeat("a", 10000));
set global innodb_large_prefix=0;
Warnings:
Warning 131 Using innodb_large_prefix is deprecated and the parameter may be removed in future releases. See http://dev.mysql.com/doc/refman/5.7/en/innodb-file-format.html
insert into worklog5743_1 values(2, repeat("b", 10000));
insert into worklog5743_2 values(2, repeat("b", 10000));
insert into worklog5743_4 values(2, repeat("b", 10000));
insert into worklog5743_8 values(2, repeat("b", 10000), repeat("b", 10000));
set global innodb_large_prefix=1;
Warnings:
Warning 131 Using innodb_large_prefix is deprecated and the parameter may be removed in future releases. See http://dev.mysql.com/doc/refman/5.7/en/innodb-file-format.html
select a1, left(a2, 20) from worklog5743_1;
a1 left(a2, 20)
9 aaaaaaaaaaaaaaaaaaaa
2 bbbbbbbbbbbbbbbbbbbb
select a1, left(a2, 20) from worklog5743_2;
a1 left(a2, 20)
9 aaaaaaaaaaaaaaaaaaaa
2 bbbbbbbbbbbbbbbbbbbb
select a1, left(a2, 20) from worklog5743_4;
a1 left(a2, 20)
9 aaaaaaaaaaaaaaaaaaaa
2 bbbbbbbbbbbbbbbbbbbb
select a1, left(a2, 20) from worklog5743_8;
a1 left(a2, 20)
9 aaaaaaaaaaaaaaaaaaaa
2 bbbbbbbbbbbbbbbbbbbb
begin;
update worklog5743_1 set a1 = 1000;
update worklog5743_2 set a1 = 1000;
update worklog5743_4 set a1 = 1000;
update worklog5743_8 set a1 = 1000;
select a1, left(a2, 20) from worklog5743_1;
a1 left(a2, 20)
1000 aaaaaaaaaaaaaaaaaaaa
1000 bbbbbbbbbbbbbbbbbbbb
select a1, left(a2, 20) from worklog5743_2;
a1 left(a2, 20)
1000 aaaaaaaaaaaaaaaaaaaa
1000 bbbbbbbbbbbbbbbbbbbb
select a1, left(a2, 20) from worklog5743_4;
a1 left(a2, 20)
1000 aaaaaaaaaaaaaaaaaaaa
1000 bbbbbbbbbbbbbbbbbbbb
select a1, left(a2, 20) from worklog5743_8;
a1 left(a2, 20)
1000 aaaaaaaaaaaaaaaaaaaa
1000 bbbbbbbbbbbbbbbbbbbb
select @@session.tx_isolation;
@@session.tx_isolation
REPEATABLE-READ
Warnings:
Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead
explain select a1, left(a2, 20) from worklog5743_1 where a1 = 9;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE worklog5743_1 NULL ref idx6 idx6 5 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`worklog5743_1`.`a1` AS `a1`,left(`test`.`worklog5743_1`.`a2`,20) AS `left(a2, 20)` from `test`.`worklog5743_1` where (`test`.`worklog5743_1`.`a1` = 9)
explain select a1, left(a2, 20) from worklog5743_2 where a1 = 9;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE worklog5743_2 NULL ref idx6 idx6 5 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`worklog5743_2`.`a1` AS `a1`,left(`test`.`worklog5743_2`.`a2`,20) AS `left(a2, 20)` from `test`.`worklog5743_2` where (`test`.`worklog5743_2`.`a1` = 9)
explain select a1, left(a2, 20) from worklog5743_4 where a1 = 9;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE worklog5743_4 NULL ref idx6 idx6 5 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`worklog5743_4`.`a1` AS `a1`,left(`test`.`worklog5743_4`.`a2`,20) AS `left(a2, 20)` from `test`.`worklog5743_4` where (`test`.`worklog5743_4`.`a1` = 9)
explain select a1, left(a2, 20) from worklog5743_8 where a1 = 9;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE worklog5743_8 NULL ref idx5 idx5 5 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`worklog5743_8`.`a1` AS `a1`,left(`test`.`worklog5743_8`.`a2`,20) AS `left(a2, 20)` from `test`.`worklog5743_8` where (`test`.`worklog5743_8`.`a1` = 9)
select a1, left(a2, 20) from worklog5743_1 where a1 = 9;
a1 left(a2, 20)
9 aaaaaaaaaaaaaaaaaaaa
select a1, left(a2, 20) from worklog5743_2 where a1 = 9;
a1 left(a2, 20)
9 aaaaaaaaaaaaaaaaaaaa
select a1, left(a2, 20) from worklog5743_4 where a1 = 9;
a1 left(a2, 20)
9 aaaaaaaaaaaaaaaaaaaa
select a1, left(a2, 20) from worklog5743_8 where a1 = 9;
a1 left(a2, 20)
9 aaaaaaaaaaaaaaaaaaaa
SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
select @@session.tx_isolation;
@@session.tx_isolation
READ-UNCOMMITTED
Warnings:
Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead
select a1, left(a2, 20) from worklog5743_1 where a1 = 9;
a1 left(a2, 20)
select a1, left(a2, 20) from worklog5743_2 where a1 = 9;
a1 left(a2, 20)
select a1, left(a2, 20) from worklog5743_4 where a1 = 9;
a1 left(a2, 20)
select a1, left(a2, 20) from worklog5743_8 where a1 = 9;
a1 left(a2, 20)
rollback;
drop table worklog5743_1;
drop table worklog5743_2;
drop table worklog5743_4;
drop table worklog5743_8;
### Test 5 ###
create table worklog5743(a1 int, a2 varchar(20000)) ROW_FORMAT=DYNAMIC;
create index idx1 on worklog5743(a2);
ERROR 42000: Specified key was too long; max key length is 3072 bytes
drop table worklog5743;
create table worklog5743(a1 int, a2 varchar(1537)) ROW_FORMAT=DYNAMIC;
create index idx1 on worklog5743(a2);
ERROR 42000: Specified key was too long; max key length is 1536 bytes
drop table worklog5743;
create table worklog5743(a1 int, a2 varchar(1536)) ROW_FORMAT=DYNAMIC;
create index idx1 on worklog5743(a2);
show warnings;
Level Code Message
insert into worklog5743 values(9, repeat("a", 1536));
update worklog5743 set a1 = 1000;
drop table worklog5743;
create table worklog5743(a1 int, a2 varchar(1533)) ROW_FORMAT=DYNAMIC;
create index idx1 on worklog5743(a1, a2);
ERROR 42000: Specified key was too long; max key length is 1536 bytes
show warnings;
Level Code Message
Error 1071 Specified key was too long; max key length is 1536 bytes
drop table worklog5743;
create table worklog5743(a1 int, a2 varchar(1532)) ROW_FORMAT=DYNAMIC;
create index idx1 on worklog5743(a1, a2);
show warnings;
Level Code Message
insert into worklog5743 values(9, repeat("a", 1532));
update worklog5743 set a1 = 1000;
begin;
update worklog5743 set a1 = 1000;
select @@session.tx_isolation;
@@session.tx_isolation
REPEATABLE-READ
Warnings:
Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead
explain select a1 from worklog5743 where a1 = 9;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE worklog5743 NULL ref idx1 idx1 5 const 1 100.00 Using index
Warnings:
Note 1003 /* select#1 */ select `test`.`worklog5743`.`a1` AS `a1` from `test`.`worklog5743` where (`test`.`worklog5743`.`a1` = 9)
select a1 from worklog5743 where a1 = 9;
a1
SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
select @@session.tx_isolation;
@@session.tx_isolation
READ-UNCOMMITTED
Warnings:
Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead
select a1 from worklog5743 where a1 = 9;
a1
rollback;
drop table worklog5743;
### Test 6 ###
create table worklog5743(a TEXT not null, primary key (a(1000)))
row_format=compact;
ERROR 42000: Specified key was too long; max key length is 767 bytes
create table worklog5743(a TEXT) row_format=compact;
create index idx on worklog5743(a(768));
ERROR 42000: Specified key was too long; max key length is 767 bytes
create index idx on worklog5743(a(767));
insert into worklog5743 values(repeat("a", 20000));
begin;
insert into worklog5743 values(repeat("b", 20000));
update worklog5743 set a = (repeat("x", 25000));
select @@session.tx_isolation;
@@session.tx_isolation
REPEATABLE-READ
Warnings:
Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead
select a = repeat("a", 20000) from worklog5743;
a = repeat("a", 20000)
1
SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
select @@session.tx_isolation;
@@session.tx_isolation
READ-UNCOMMITTED
Warnings:
Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead
select a = repeat("x", 25000) from worklog5743;
a = repeat("x", 25000)
1
1
rollback;
drop table worklog5743;
### Test 7 ###
create table worklog5743(a TEXT not null) ROW_FORMAT=DYNAMIC;
SET sql_mode= '';
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
create index idx1 on worklog5743(a(3073));
Warnings:
Warning 1071 Specified key was too long; max key length is 1536 bytes
create index idx2 on worklog5743(a(3072));
Warnings:
Warning 1071 Specified key was too long; max key length is 1536 bytes
SET sql_mode= default;
show create table worklog5743;
Table Create Table
worklog5743 CREATE TABLE `worklog5743` (
`a` text NOT NULL,
KEY `idx1` (`a`(1536)),
KEY `idx2` (`a`(1536))
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
drop table worklog5743;
create table worklog5743(a TEXT not null) ROW_FORMAT=REDUNDANT;
create index idx on worklog5743(a(768));
ERROR 42000: Specified key was too long; max key length is 767 bytes
create index idx2 on worklog5743(a(767));
drop table worklog5743;
create table worklog5743(a TEXT not null) ROW_FORMAT=COMPACT;
create index idx on worklog5743(a(768));
ERROR 42000: Specified key was too long; max key length is 767 bytes
create index idx2 on worklog5743(a(767));
drop table worklog5743;
SET GLOBAL innodb_file_per_table=1;