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mariadb/mysql-test/r/variables.result
unknown 33efc9677d After merge fixes of merge with 4.1 that included the new arena code. 
Fixed (together with Guilhem) bugs in mysqlbinlog regarding --offset
Prefix addresses with 0x for easier comparisons of debug logs
Fixed problem where MySQL choosed index-read even if there would be a much better range on the same index
This fix changed some 'index' queries to 'range' queries in the test suite
Don't create 'dummy' WHERE clause for trivial WHERE clauses where we can remove the WHERE clause.
This fix removed of a lot of 'Using where' notes in the test suite.
Give NOTE instead of WARNING if table/function doesn't exists when using DROP IF EXISTS
Give NOTE instead of WARNING for safe field-type conversions


Makefile.am:
  Don't automaticly update files from bk
client/mysqlbinlog.cc:
  Merge with 4.1 (+ apply bug fixes for --offset and --start-position)
include/my_sys.h:
  Faster clear_alloc_root()
mysql-test/r/bdb.result:
  Updated results after merge
mysql-test/r/create.result:
  Updated results after merge
mysql-test/r/func_group.result:
  Updated results after merge
mysql-test/r/func_if.result:
  Updated results after merge
mysql-test/r/heap_btree.result:
  Updated results after merge
mysql-test/r/index_merge.result:
  Updated results after merge
mysql-test/r/index_merge_ror.result:
  Updated results after merge
mysql-test/r/innodb.result:
  Updated results after merge
mysql-test/r/join_outer.result:
  Updated results after merge
mysql-test/r/mysqlbinlog2.result:
  Updated results after merge
mysql-test/r/negation_elimination.result:
  Updated results after merge
mysql-test/r/null.result:
  Updated results after merge
  Added more tests
mysql-test/r/null_key.result:
  Updated results after merge
  Added more tests
mysql-test/r/order_by.result:
  Updated results after merge
mysql-test/r/range.result:
  Updated results after merge
  Added more tests
mysql-test/r/rpl_charset.result:
  Updated results after merge
mysql-test/r/sp-error.result:
  Updated results after merge
mysql-test/r/sp.result:
  Updated results after merge
  Added delete of some stored procedures in an attempt to be able to re-run test even if it aborts in the middle
mysql-test/r/type_blob.result:
  Updated results after merge
  (Some warnings are now notes)
mysql-test/r/user_var.result:
  Updated results after merge
  Added more tests
mysql-test/r/variables.result:
  Updated results after merge
mysql-test/r/view.result:
  Updated results after merge
mysql-test/t/mysqlbinlog2.test:
  Updated tests to use new positions
mysql-test/t/null.test:
  More tests
mysql-test/t/null_key.test:
  More tests
mysql-test/t/range.test:
  More tests
mysql-test/t/rpl_charset.test:
  Avoid big diffs in the future if tests changes
mysql-test/t/sp-error.test:
  Updated error numbers
mysql-test/t/sp-security.test:
  Updated error numbers
mysql-test/t/sp.test:
  Updated results after merge
  Added delete of some stored procedures in an attempt to be able to re-run test even if it aborts in the middle
mysql-test/t/user_var.test:
  More tests
mysql-test/t/view.test:
  Updated error numbers
mysys/my_alloc.c:
  Write into debug log the address of the allocated area
sql/ha_isam.cc:
  Prefix addresses with 0x for easier comparisons of debug logs
sql/ha_myisam.cc:
  Prefix addresses with 0x for easier comparisons of debug logs
sql/ha_ndbcluster.cc:
  Add missing enum to switch
sql/handler.cc:
  remove compiler warning
sql/item.cc:
  More debugging
  Simple cleanup
sql/item.h:
  Move Item::cleanup() to item.cc
sql/item_cmpfunc.cc:
  Fix arena code
sql/item_subselect.cc:
  After merge fixes
sql/item_subselect.h:
  After merge fixes
sql/item_sum.cc:
  Updated comment
sql/log_event.cc:
  Remove wrong test
sql/mysql_priv.h:
  Indentation fixes
sql/mysqld.cc:
  After merge fixes
  Added 0x to pointers in debug log
sql/opt_range.cc:
  Fixed problem where MySQL choosed index-read even if there would be a much better range on the same index
  This fix changed some 'index' queries to 'range' queries in the test suite
sql/set_var.cc:
  Indentation fixes
sql/sp_head.cc:
  Set state to INITIALIZED to make SP work with new arena code
sql/sql_base.cc:
  After merge fixes
sql/sql_class.cc:
  More debugging
  Use clear_alloc_root() instead of init_alloc_root() as the former is faster
sql/sql_class.h:
  New method 'only_prepare()'
sql/sql_lex.cc:
  After merge fixes
sql/sql_lex.h:
  After merge fixes
sql/sql_parse.cc:
  Fix for timezone tables. (The old way to add timezone tables to global list in 'create_total_list' doesn't work anymore)
  Give NOTE instead of WARNING if table/function doesn't exists when using DROP IF EXISTS
sql/sql_prepare.cc:
  After merge fixes
sql/sql_select.cc:
  Don't create 'dummy' WHERE clause for trivial WHERE clauses where we can remove the WHERE clause.
  This fix removed of a lot of 'Using where' notes in the test suite
sql/sql_table.cc:
  Give NOTE instead of WARNING if table/function doesn't exists when using DROP IF EXISTS
sql/sql_union.cc:
  After merge fix
sql/sql_view.cc:
  After merge fix
sql/table.cc:
  After merge fix
sql/tztime.cc:
  Update timezone table handling to use new table lists structure
sql/tztime.h:
  Update timezone table handling to use new table lists structure
sql/unireg.cc:
  Use 0x before pointers
2004-09-09 06:59:26 +03:00

478 lines
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drop table if exists t1,t2;
set @`test`=1;
select @test, @`test`, @TEST, @`TEST`, @"teSt";
@test @`test` @TEST @`TEST` @"teSt"
1 1 1 1 1
set @TEST=2;
select @test, @`test`, @TEST, @`TEST`, @"teSt";
@test @`test` @TEST @`TEST` @"teSt"
2 2 2 2 2
set @"tEST"=3;
select @test, @`test`, @TEST, @`TEST`, @"teSt";
@test @`test` @TEST @`TEST` @"teSt"
3 3 3 3 3
set @`TeST`=4;
select @test, @`test`, @TEST, @`TEST`, @"teSt";
@test @`test` @TEST @`TEST` @"teSt"
4 4 4 4 4
select @`teST`:=5;
@`teST`:=5
5
select @test, @`test`, @TEST, @`TEST`, @"teSt";
@test @`test` @TEST @`TEST` @"teSt"
5 5 5 5 5
set @select=2,@t5=1.23456;
select @`select`,@not_used;
@`select` @not_used
2 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;
@@session.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="INNODB";
show local variables like 'storage_engine';
Variable_name Value
storage_engine HEAP
show global variables like 'storage_engine';
Variable_name Value
storage_engine InnoDB
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
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=INNODB, 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 slave_net_timeout=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;
Warnings:
Note 1315 The update log is deprecated and replaced by the binary log; SET SQL_LOG_UPDATE has been ignored
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 global sql_slave_skip_counter=100;
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 @@session.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 @@session.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 @@session.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 @@session.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 @@session.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
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