mirror of
https://github.com/MariaDB/server.git
synced 2025-01-17 20:42:30 +01:00
4c3f3bd826
mysql-test/r/variables.result: Add new results mysql-test/t/variables.test: Add new regression test sql/mysqld.cc: Fix minimum value of query_prealloc_size to be the same as its default.
506 lines
17 KiB
Text
506 lines
17 KiB
Text
drop table if exists t1,t2;
|
|
set @`test`=1,@TEST=3,@select=2,@t5=1.23456;
|
|
select @test,@`select`,@TEST,@not_used;
|
|
@test @`select` @TEST @not_used
|
|
1 2 3 NULL
|
|
set @test_int=10,@test_double=1e-10,@test_string="abcdeghi",@test_string2="abcdefghij",@select=NULL;
|
|
select @test_int,@test_double,@test_string,@test_string2,@select;
|
|
@test_int @test_double @test_string @test_string2 @select
|
|
10 1e-10 abcdeghi abcdefghij NULL
|
|
set @test_int="hello",@test_double="hello",@test_string="hello",@test_string2="hello";
|
|
select @test_int,@test_double,@test_string,@test_string2;
|
|
@test_int @test_double @test_string @test_string2
|
|
hello hello hello hello
|
|
set @test_int="hellohello",@test_double="hellohello",@test_string="hellohello",@test_string2="hellohello";
|
|
select @test_int,@test_double,@test_string,@test_string2;
|
|
@test_int @test_double @test_string @test_string2
|
|
hellohello hellohello hellohello hellohello
|
|
set @test_int=null,@test_double=null,@test_string=null,@test_string2=null;
|
|
select @test_int,@test_double,@test_string,@test_string2;
|
|
@test_int @test_double @test_string @test_string2
|
|
NULL NULL NULL NULL
|
|
select @t1:=(@t2:=1)+@t3:=4,@t1,@t2,@t3;
|
|
@t1:=(@t2:=1)+@t3:=4 @t1 @t2 @t3
|
|
5 5 1 4
|
|
explain extended select @t1:=(@t2:=1)+@t3:=4,@t1,@t2,@t3;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
Warnings:
|
|
Note 1003 select sql_no_cache (@t1:=((@t2:=1) + (@t3:=4))) AS `@t1:=(@t2:=1)+@t3:=4`,(@t1) AS `@t1`,(@t2) AS `@t2`,(@t3) AS `@t3`
|
|
select @t5;
|
|
@t5
|
|
1.23456
|
|
CREATE TABLE t1 (c_id INT(4) NOT NULL, c_name CHAR(20), c_country CHAR(3), PRIMARY KEY(c_id));
|
|
INSERT INTO t1 VALUES (1,'Bozo','USA'),(2,'Ronald','USA'),(3,'Kinko','IRE'),(4,'Mr. Floppy','GB');
|
|
SELECT @min_cid:=min(c_id), @max_cid:=max(c_id) from t1;
|
|
@min_cid:=min(c_id) @max_cid:=max(c_id)
|
|
1 4
|
|
SELECT * FROM t1 WHERE c_id=@min_cid OR c_id=@max_cid;
|
|
c_id c_name c_country
|
|
1 Bozo USA
|
|
4 Mr. Floppy GB
|
|
SELECT * FROM t1 WHERE c_id=@min_cid OR c_id=@max_cid OR c_id=666;
|
|
c_id c_name c_country
|
|
1 Bozo USA
|
|
4 Mr. Floppy GB
|
|
ALTER TABLE t1 DROP PRIMARY KEY;
|
|
select * from t1 where c_id=@min_cid OR c_id=@max_cid;
|
|
c_id c_name c_country
|
|
1 Bozo USA
|
|
4 Mr. Floppy GB
|
|
drop table t1;
|
|
set max_join_size=100;
|
|
show variables like 'max_join_size';
|
|
Variable_name Value
|
|
max_join_size 100
|
|
show global variables like 'max_join_size';
|
|
Variable_name Value
|
|
max_join_size 10
|
|
set GLOBAL max_join_size=2000;
|
|
show global variables like 'max_join_size';
|
|
Variable_name Value
|
|
max_join_size 2000
|
|
set max_join_size=DEFAULT;
|
|
show variables like 'max_join_size';
|
|
Variable_name Value
|
|
max_join_size 2000
|
|
set GLOBAL max_join_size=DEFAULT;
|
|
show global variables like 'max_join_size';
|
|
Variable_name Value
|
|
max_join_size HA_POS_ERROR
|
|
set @@max_join_size=1000, @@global.max_join_size=2000;
|
|
select @@local.max_join_size, @@global.max_join_size;
|
|
@@local.max_join_size @@global.max_join_size
|
|
1000 2000
|
|
select @@identity, length(@@version)>0;
|
|
@@identity length(@@version)>0
|
|
0 1
|
|
select @@VERSION=version();
|
|
@@VERSION=version()
|
|
1
|
|
select last_insert_id(345);
|
|
last_insert_id(345)
|
|
345
|
|
explain extended select last_insert_id(345);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
Warnings:
|
|
Note 1003 select sql_no_cache last_insert_id(345) AS `last_insert_id(345)`
|
|
select @@IDENTITY,last_insert_id(), @@identity;
|
|
@@IDENTITY last_insert_id() @@identity
|
|
345 345 345
|
|
explain extended select @@IDENTITY,last_insert_id(), @@identity;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
Warnings:
|
|
Note 1003 select sql_no_cache 345 AS `@@IDENTITY`,last_insert_id() AS `last_insert_id()`,345 AS `@@identity`
|
|
set big_tables=OFF, big_tables=ON, big_tables=0, big_tables=1, big_tables="OFF", big_tables="ON";
|
|
set global concurrent_insert=ON;
|
|
show variables like 'concurrent_insert';
|
|
Variable_name Value
|
|
concurrent_insert ON
|
|
set global concurrent_insert=1;
|
|
show variables like 'concurrent_insert';
|
|
Variable_name Value
|
|
concurrent_insert ON
|
|
set global concurrent_insert=0;
|
|
show variables like 'concurrent_insert';
|
|
Variable_name Value
|
|
concurrent_insert OFF
|
|
set global concurrent_insert=OFF;
|
|
show variables like 'concurrent_insert';
|
|
Variable_name Value
|
|
concurrent_insert OFF
|
|
set global concurrent_insert=DEFAULT;
|
|
show variables like 'concurrent_insert';
|
|
Variable_name Value
|
|
concurrent_insert ON
|
|
set storage_engine=MYISAM, storage_engine="HEAP", global storage_engine="MERGE";
|
|
show local variables like 'storage_engine';
|
|
Variable_name Value
|
|
storage_engine HEAP
|
|
show global variables like 'storage_engine';
|
|
Variable_name Value
|
|
storage_engine MERGE
|
|
set GLOBAL query_cache_size=100000;
|
|
set GLOBAL myisam_max_sort_file_size=2000000;
|
|
show global variables like 'myisam_max_sort_file_size';
|
|
Variable_name Value
|
|
myisam_max_sort_file_size 1048576
|
|
set GLOBAL myisam_max_sort_file_size=default;
|
|
show variables like 'myisam_max_sort_file_size';
|
|
Variable_name Value
|
|
myisam_max_sort_file_size FILE_SIZE
|
|
set global net_retry_count=10, session net_retry_count=10;
|
|
set global net_buffer_length=1024, net_write_timeout=200, net_read_timeout=300;
|
|
set session net_buffer_length=2048, net_write_timeout=500, net_read_timeout=600;
|
|
show global variables like 'net_%';
|
|
Variable_name Value
|
|
net_buffer_length 1024
|
|
net_read_timeout 300
|
|
net_retry_count 10
|
|
net_write_timeout 200
|
|
show session variables like 'net_%';
|
|
Variable_name Value
|
|
net_buffer_length 2048
|
|
net_read_timeout 600
|
|
net_retry_count 10
|
|
net_write_timeout 500
|
|
set session net_buffer_length=8000, global net_read_timeout=900, net_write_timeout=1000;
|
|
show global variables like 'net_%';
|
|
Variable_name Value
|
|
net_buffer_length 1024
|
|
net_read_timeout 900
|
|
net_retry_count 10
|
|
net_write_timeout 1000
|
|
show session variables like 'net_%';
|
|
Variable_name Value
|
|
net_buffer_length 7168
|
|
net_read_timeout 600
|
|
net_retry_count 10
|
|
net_write_timeout 500
|
|
set net_buffer_length=1;
|
|
show variables like 'net_buffer_length';
|
|
Variable_name Value
|
|
net_buffer_length 1024
|
|
set net_buffer_length=2000000000;
|
|
show variables like 'net_buffer_length';
|
|
Variable_name Value
|
|
net_buffer_length 1048576
|
|
set character set cp1251_koi8;
|
|
show variables like "character_set_client";
|
|
Variable_name Value
|
|
character_set_client cp1251
|
|
select @@timestamp>0;
|
|
@@timestamp>0
|
|
1
|
|
set @@rand_seed1=10000000,@@rand_seed2=1000000;
|
|
select ROUND(RAND(),5);
|
|
ROUND(RAND(),5)
|
|
0.02887
|
|
show variables like '%alloc%';
|
|
Variable_name Value
|
|
query_alloc_block_size 8192
|
|
query_prealloc_size 8192
|
|
range_alloc_block_size 2048
|
|
transaction_alloc_block_size 8192
|
|
transaction_prealloc_size 4096
|
|
set @@range_alloc_block_size=1024*16;
|
|
set @@query_alloc_block_size=1024*17+2;
|
|
set @@query_prealloc_size=1024*18;
|
|
set @@transaction_alloc_block_size=1024*20-1;
|
|
set @@transaction_prealloc_size=1024*21-1;
|
|
select @@query_alloc_block_size;
|
|
@@query_alloc_block_size
|
|
17408
|
|
show variables like '%alloc%';
|
|
Variable_name Value
|
|
query_alloc_block_size 17408
|
|
query_prealloc_size 18432
|
|
range_alloc_block_size 16384
|
|
transaction_alloc_block_size 19456
|
|
transaction_prealloc_size 20480
|
|
set @@range_alloc_block_size=default;
|
|
set @@query_alloc_block_size=default, @@query_prealloc_size=default;
|
|
set transaction_alloc_block_size=default, @@transaction_prealloc_size=default;
|
|
show variables like '%alloc%';
|
|
Variable_name Value
|
|
query_alloc_block_size 8192
|
|
query_prealloc_size 8192
|
|
range_alloc_block_size 2048
|
|
transaction_alloc_block_size 8192
|
|
transaction_prealloc_size 4096
|
|
SELECT @@version LIKE 'non-existent';
|
|
@@version LIKE 'non-existent'
|
|
0
|
|
SELECT @@version_compile_os LIKE 'non-existent';
|
|
@@version_compile_os LIKE 'non-existent'
|
|
0
|
|
set big_tables=OFFF;
|
|
ERROR 42000: Variable 'big_tables' can't be set to the value of 'OFFF'
|
|
set big_tables="OFFF";
|
|
ERROR 42000: Variable 'big_tables' can't be set to the value of 'OFFF'
|
|
set unknown_variable=1;
|
|
ERROR HY000: Unknown system variable 'unknown_variable'
|
|
set max_join_size="hello";
|
|
ERROR 42000: Incorrect argument type to variable 'max_join_size'
|
|
set storage_engine=UNKNOWN_TABLE_TYPE;
|
|
ERROR 42000: Unknown table engine 'UNKNOWN_TABLE_TYPE'
|
|
set storage_engine=MERGE, big_tables=2;
|
|
ERROR 42000: Variable 'big_tables' can't be set to the value of '2'
|
|
show local variables like 'storage_engine';
|
|
Variable_name Value
|
|
storage_engine HEAP
|
|
set SESSION query_cache_size=10000;
|
|
ERROR HY000: Variable 'query_cache_size' is a GLOBAL variable and should be set with SET GLOBAL
|
|
set GLOBAL storage_engine=DEFAULT;
|
|
ERROR 42000: Variable 'storage_engine' doesn't have a default value
|
|
set character_set_client=UNKNOWN_CHARACTER_SET;
|
|
ERROR 42000: Unknown character set: 'UNKNOWN_CHARACTER_SET'
|
|
set collation_connection=UNKNOWN_COLLATION;
|
|
ERROR HY000: Unknown collation: 'UNKNOWN_COLLATION'
|
|
set character_set_client=NULL;
|
|
ERROR 42000: Variable 'character_set_client' can't be set to the value of 'NULL'
|
|
set collation_connection=NULL;
|
|
ERROR 42000: Variable 'collation_connection' can't be set to the value of 'NULL'
|
|
set global autocommit=1;
|
|
ERROR HY000: Variable 'autocommit' is a SESSION variable and can't be used with SET GLOBAL
|
|
select @@global.timestamp;
|
|
ERROR HY000: Variable 'timestamp' is a SESSION variable
|
|
set @@version='';
|
|
ERROR HY000: Unknown system variable 'version'
|
|
set @@concurrent_insert=1;
|
|
ERROR HY000: Variable 'concurrent_insert' is a GLOBAL variable and should be set with SET GLOBAL
|
|
set @@global.sql_auto_is_null=1;
|
|
ERROR HY000: Variable 'sql_auto_is_null' is a SESSION variable and can't be used with SET GLOBAL
|
|
select @@global.sql_auto_is_null;
|
|
ERROR HY000: Variable 'sql_auto_is_null' is a SESSION variable
|
|
set myisam_max_sort_file_size=100;
|
|
ERROR HY000: Variable 'myisam_max_sort_file_size' is a GLOBAL variable and should be set with SET GLOBAL
|
|
set myisam_max_extra_sort_file_size=100;
|
|
ERROR HY000: Variable 'myisam_max_extra_sort_file_size' is a GLOBAL variable and should be set with SET GLOBAL
|
|
set @@SQL_WARNINGS=NULL;
|
|
ERROR 42000: Variable 'sql_warnings' can't be set to the value of 'NULL'
|
|
set autocommit=1;
|
|
set big_tables=1;
|
|
select @@autocommit, @@big_tables;
|
|
@@autocommit @@big_tables
|
|
1 1
|
|
set global binlog_cache_size=100;
|
|
set bulk_insert_buffer_size=100;
|
|
set character set cp1251_koi8;
|
|
set character set default;
|
|
set @@global.concurrent_insert=1;
|
|
set global connect_timeout=100;
|
|
select @@delay_key_write;
|
|
@@delay_key_write
|
|
ON
|
|
set global delay_key_write="OFF";
|
|
select @@delay_key_write;
|
|
@@delay_key_write
|
|
OFF
|
|
set global delay_key_write=ALL;
|
|
select @@delay_key_write;
|
|
@@delay_key_write
|
|
ALL
|
|
set global delay_key_write=1;
|
|
select @@delay_key_write;
|
|
@@delay_key_write
|
|
ON
|
|
set global delayed_insert_limit=100;
|
|
set global delayed_insert_timeout=100;
|
|
set global delayed_queue_size=100;
|
|
set global flush=1;
|
|
set global flush_time=100;
|
|
set insert_id=1;
|
|
set interactive_timeout=100;
|
|
set join_buffer_size=100;
|
|
set last_insert_id=1;
|
|
set global local_infile=1;
|
|
set long_query_time=100;
|
|
set low_priority_updates=1;
|
|
set max_allowed_packet=100;
|
|
set global max_binlog_cache_size=100;
|
|
set global max_binlog_size=100;
|
|
set global max_connect_errors=100;
|
|
set global max_connections=100;
|
|
set global max_delayed_threads=100;
|
|
set max_heap_table_size=100;
|
|
set max_join_size=100;
|
|
set max_sort_length=100;
|
|
set max_tmp_tables=100;
|
|
set global max_user_connections=100;
|
|
select @@max_user_connections;
|
|
@@max_user_connections
|
|
100
|
|
set global max_write_lock_count=100;
|
|
set global myisam_max_extra_sort_file_size=100;
|
|
select @@myisam_max_extra_sort_file_size;
|
|
@@myisam_max_extra_sort_file_size
|
|
100
|
|
set global myisam_max_sort_file_size=100;
|
|
set myisam_sort_buffer_size=100;
|
|
set net_buffer_length=100;
|
|
set net_read_timeout=100;
|
|
set net_write_timeout=100;
|
|
set global query_cache_limit=100;
|
|
set global query_cache_size=100;
|
|
set global query_cache_type=demand;
|
|
set read_buffer_size=100;
|
|
set read_rnd_buffer_size=100;
|
|
set global rpl_recovery_rank=100;
|
|
set global server_id=100;
|
|
set global slow_launch_time=100;
|
|
set sort_buffer_size=100;
|
|
set sql_auto_is_null=1;
|
|
select @@sql_auto_is_null;
|
|
@@sql_auto_is_null
|
|
1
|
|
set @@sql_auto_is_null=0;
|
|
select @@sql_auto_is_null;
|
|
@@sql_auto_is_null
|
|
0
|
|
set sql_big_selects=1;
|
|
set sql_big_tables=1;
|
|
set sql_buffer_result=1;
|
|
set sql_log_bin=1;
|
|
set sql_log_off=1;
|
|
set sql_log_update=1;
|
|
set sql_low_priority_updates=1;
|
|
set sql_max_join_size=200;
|
|
select @@sql_max_join_size,@@max_join_size;
|
|
@@sql_max_join_size @@max_join_size
|
|
200 200
|
|
set sql_quote_show_create=1;
|
|
set sql_safe_updates=1;
|
|
set sql_select_limit=1;
|
|
set sql_warnings=1;
|
|
set global table_cache=100;
|
|
set storage_engine=myisam;
|
|
set global thread_cache_size=100;
|
|
set timestamp=1, timestamp=default;
|
|
set tmp_table_size=100;
|
|
set tx_isolation="READ-COMMITTED";
|
|
set wait_timeout=100;
|
|
set log_warnings=1;
|
|
create table t1 (a int not null auto_increment, primary key(a));
|
|
create table t2 (a int not null auto_increment, primary key(a));
|
|
insert into t1 values(null),(null),(null);
|
|
insert into t2 values(null),(null),(null);
|
|
set global key_buffer_size=100000;
|
|
select @@key_buffer_size;
|
|
@@key_buffer_size
|
|
98304
|
|
select * from t1 where a=2;
|
|
a
|
|
2
|
|
select * from t2 where a=3;
|
|
a
|
|
3
|
|
check table t1,t2;
|
|
Table Op Msg_type Msg_text
|
|
test.t1 check status OK
|
|
test.t2 check status OK
|
|
select max(a) +1, max(a) +2 into @xx,@yy from t1;
|
|
drop table t1,t2;
|
|
select @@xxxxxxxxxx;
|
|
ERROR HY000: Unknown system variable 'xxxxxxxxxx'
|
|
select 1;
|
|
1
|
|
1
|
|
select @@session.key_buffer_size;
|
|
ERROR HY000: Variable 'key_buffer_size' is a GLOBAL variable
|
|
set ft_boolean_syntax = @@init_connect;
|
|
ERROR HY000: Variable 'ft_boolean_syntax' is a GLOBAL variable and should be set with SET GLOBAL
|
|
set global ft_boolean_syntax = @@init_connect;
|
|
ERROR 42000: Variable 'ft_boolean_syntax' can't be set to the value of ''
|
|
set init_connect = NULL;
|
|
ERROR HY000: Variable 'init_connect' is a GLOBAL variable and should be set with SET GLOBAL
|
|
set global init_connect = NULL;
|
|
set ft_boolean_syntax = @@init_connect;
|
|
ERROR HY000: Variable 'ft_boolean_syntax' is a GLOBAL variable and should be set with SET GLOBAL
|
|
set global ft_boolean_syntax = @@init_connect;
|
|
ERROR 42000: Variable 'ft_boolean_syntax' can't be set to the value of ''
|
|
set global myisam_max_sort_file_size=4294967296;
|
|
show global variables like 'myisam_max_sort_file_size';
|
|
Variable_name Value
|
|
myisam_max_sort_file_size MAX_FILE_SIZE
|
|
set global myisam_max_sort_file_size=default;
|
|
select @@global.max_user_connections,@@local.max_join_size;
|
|
@@global.max_user_connections @@local.max_join_size
|
|
100 200
|
|
set @svc=@@global.max_user_connections, @svj=@@local.max_join_size;
|
|
select @@global.max_user_connections,@@local.max_join_size;
|
|
@@global.max_user_connections @@local.max_join_size
|
|
100 200
|
|
set @@global.max_user_connections=111,@@local.max_join_size=222;
|
|
select @@global.max_user_connections,@@local.max_join_size;
|
|
@@global.max_user_connections @@local.max_join_size
|
|
111 222
|
|
set @@global.max_user_connections=@@local.max_join_size,@@local.max_join_size=@@global.max_user_connections;
|
|
select @@global.max_user_connections,@@local.max_join_size;
|
|
@@global.max_user_connections @@local.max_join_size
|
|
222 111
|
|
set @@global.max_user_connections=@svc, @@local.max_join_size=@svj;
|
|
select @@global.max_user_connections,@@local.max_join_size;
|
|
@@global.max_user_connections @@local.max_join_size
|
|
100 200
|
|
set @a=1, @b=2;
|
|
set @a=@b, @b=@a;
|
|
select @a, @b;
|
|
@a @b
|
|
2 1
|
|
set @@global.global.key_buffer_size= 1;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'key_buffer_size= 1' at line 1
|
|
set GLOBAL global.key_buffer_size= 1;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'key_buffer_size= 1' at line 1
|
|
SELECT @@global.global.key_buffer_size;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'key_buffer_size' at line 1
|
|
SELECT @@global.session.key_buffer_size;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'key_buffer_size' at line 1
|
|
SELECT @@global.local.key_buffer_size;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'key_buffer_size' at line 1
|
|
set @tstlw = @@log_warnings;
|
|
show global variables like 'log_warnings';
|
|
Variable_name Value
|
|
log_warnings 1
|
|
set global log_warnings = 0;
|
|
show global variables like 'log_warnings';
|
|
Variable_name Value
|
|
log_warnings 0
|
|
set global log_warnings = 42;
|
|
show global variables like 'log_warnings';
|
|
Variable_name Value
|
|
log_warnings 42
|
|
set global log_warnings = @tstlw;
|
|
show global variables like 'log_warnings';
|
|
Variable_name Value
|
|
log_warnings 1
|
|
create table t1 (
|
|
c1 tinyint,
|
|
c2 smallint,
|
|
c3 mediumint,
|
|
c4 int,
|
|
c5 bigint);
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` tinyint(4) default NULL,
|
|
`c2` smallint(6) default NULL,
|
|
`c3` mediumint(9) default NULL,
|
|
`c4` int(11) default NULL,
|
|
`c5` bigint(20) default NULL
|
|
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
|
drop table t1;
|
|
set @arg00= 8, @arg01= 8.8, @arg02= 'a string';
|
|
create table t1 as select @arg00 as c1, @arg01 as c2, @arg02 as c3;
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` bigint(20) default NULL,
|
|
`c2` double default NULL,
|
|
`c3` longtext
|
|
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
|
drop table t1;
|
|
SET GLOBAL MYISAM_DATA_POINTER_SIZE= 7;
|
|
SHOW VARIABLES LIKE 'MYISAM_DATA_POINTER_SIZE';
|
|
Variable_name Value
|
|
myisam_data_pointer_size 7
|
|
SET GLOBAL table_cache=-1;
|
|
SHOW VARIABLES LIKE 'table_cache';
|
|
Variable_name Value
|
|
table_cache 1
|
|
SET GLOBAL table_cache=DEFAULT;
|
|
set character_set_results=NULL;
|
|
select ifnull(@@character_set_results,"really null");
|
|
ifnull(@@character_set_results,"really null")
|
|
really null
|
|
set names latin1;
|
|
select @@have_innodb;
|
|
@@have_innodb
|
|
#
|
|
set @test = @@query_prealloc_size;
|
|
set @@query_prealloc_size = @test;
|
|
select @@query_prealloc_size = @test;
|
|
@@query_prealloc_size = @test
|
|
1
|