variables.test
上传用户:romrleung
上传日期:2022-05-23
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文件大小:12k
- #
- # test variables
- #
- --disable_warnings
- drop table if exists t1,t2;
- --enable_warnings
- set @`test`=1,@TEST=3,@select=2,@t5=1.23456;
- select @test,@`select`,@TEST,@not_used;
- set @test_int=10,@test_double=1e-10,@test_string="abcdeghi",@test_string2="abcdefghij",@select=NULL;
- --replace_result e-0 e- e+0 e+
- select @test_int,@test_double,@test_string,@test_string2,@select;
- set @test_int="hello",@test_double="hello",@test_string="hello",@test_string2="hello";
- select @test_int,@test_double,@test_string,@test_string2;
- set @test_int="hellohello",@test_double="hellohello",@test_string="hellohello",@test_string2="hellohello";
- select @test_int,@test_double,@test_string,@test_string2;
- set @test_int=null,@test_double=null,@test_string=null,@test_string2=null;
- select @test_int,@test_double,@test_string,@test_string2;
- select @t1:=(@t2:=1)+@t3:=4,@t1,@t2,@t3;
- explain extended select @t1:=(@t2:=1)+@t3:=4,@t1,@t2,@t3;
- select @t5;
- #
- # Test problem with WHERE and variables
- #
- 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;
- SELECT * FROM t1 WHERE c_id=@min_cid OR c_id=@max_cid;
- SELECT * FROM t1 WHERE c_id=@min_cid OR c_id=@max_cid OR c_id=666;
- ALTER TABLE t1 DROP PRIMARY KEY;
- select * from t1 where c_id=@min_cid OR c_id=@max_cid;
- drop table t1;
- #
- # Test system variables
- #
- set max_join_size=100;
- show variables like 'max_join_size';
- --replace_result 18446744073709551615 HA_POS_ERROR 4294967295 HA_POS_ERROR
- show global variables like 'max_join_size';
- set GLOBAL max_join_size=2000;
- show global variables like 'max_join_size';
- set max_join_size=DEFAULT;
- --replace_result 18446744073709551615 HA_POS_ERROR 4294967295 HA_POS_ERROR
- show variables like 'max_join_size';
- set GLOBAL max_join_size=DEFAULT;
- --replace_result 18446744073709551615 HA_POS_ERROR 4294967295 HA_POS_ERROR
- show global variables like 'max_join_size';
- set @@max_join_size=1000, @@global.max_join_size=2000;
- select @@local.max_join_size, @@global.max_join_size;
- select @@identity, length(@@version)>0;
- select @@VERSION=version();
- select last_insert_id(345);
- explain extended select last_insert_id(345);
- select @@IDENTITY,last_insert_id(), @@identity;
- explain extended select @@IDENTITY,last_insert_id(), @@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';
- set global concurrent_insert=1;
- show variables like 'concurrent_insert';
- set global concurrent_insert=0;
- show variables like 'concurrent_insert';
- set global concurrent_insert=OFF;
- show variables like 'concurrent_insert';
- set global concurrent_insert=DEFAULT;
- show variables like 'concurrent_insert';
- set storage_engine=MYISAM, storage_engine="HEAP", global storage_engine="MERGE";
- show local variables like 'storage_engine';
- show global variables like 'storage_engine';
- set GLOBAL query_cache_size=100000;
- set GLOBAL myisam_max_sort_file_size=2000000;
- show global variables like 'myisam_max_sort_file_size';
- set GLOBAL myisam_max_sort_file_size=default;
- --replace_result 2147483647 FILE_SIZE 9223372036854775807 FILE_SIZE
- show variables like 'myisam_max_sort_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_%';
- show session variables like 'net_%';
- set session net_buffer_length=8000, global net_read_timeout=900, net_write_timeout=1000;
- show global variables like 'net_%';
- show session variables like 'net_%';
- set net_buffer_length=1;
- show variables like 'net_buffer_length';
- set net_buffer_length=2000000000;
- show variables like 'net_buffer_length';
- set character set cp1251_koi8;
- show variables like "character_set_client";
- select @@timestamp>0;
- set @@rand_seed1=10000000,@@rand_seed2=1000000;
- select ROUND(RAND(),5);
- show variables like '%alloc%';
- 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;
- show variables like '%alloc%';
- 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%';
- #
- # Bug #10904 Illegal mix of collations between
- # a system variable and a constant
- #
- SELECT @@version LIKE 'non-existent';
- SELECT @@version_compile_os LIKE 'non-existent';
- # The following should give errors
- --error 1231
- set big_tables=OFFF;
- --error 1231
- set big_tables="OFFF";
- --error 1193
- set unknown_variable=1;
- --error 1232
- set max_join_size="hello";
- --error 1286
- set storage_engine=UNKNOWN_TABLE_TYPE;
- --error 1231
- set storage_engine=MERGE, big_tables=2;
- show local variables like 'storage_engine';
- --error 1229
- set SESSION query_cache_size=10000;
- --error 1230
- set GLOBAL storage_engine=DEFAULT;
- --error 1115
- set character_set_client=UNKNOWN_CHARACTER_SET;
- --error 1273
- set collation_connection=UNKNOWN_COLLATION;
- --error 1231
- set character_set_client=NULL;
- --error 1231
- set collation_connection=NULL;
- --error 1228
- set global autocommit=1;
- --error 1238
- select @@global.timestamp;
- --error 1193
- set @@version='';
- --error 1229
- set @@concurrent_insert=1;
- --error 1228
- set @@global.sql_auto_is_null=1;
- --error 1238
- select @@global.sql_auto_is_null;
- --error 1229
- set myisam_max_sort_file_size=100;
- --error 1229
- set myisam_max_extra_sort_file_size=100;
- --error 1231
- set @@SQL_WARNINGS=NULL;
- # Test setting all variables
- set autocommit=1;
- set big_tables=1;
- select @@autocommit, @@big_tables;
- 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;
- set global delay_key_write="OFF";
- select @@delay_key_write;
- set global delay_key_write=ALL;
- select @@delay_key_write;
- set global delay_key_write=1;
- select @@delay_key_write;
- 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;
- set global max_write_lock_count=100;
- set global myisam_max_extra_sort_file_size=100;
- select @@myisam_max_extra_sort_file_size;
- 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;
- set @@sql_auto_is_null=0;
- select @@sql_auto_is_null;
- 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;
- 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;
- #
- # key buffer
- #
- 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;
- select * from t1 where a=2;
- select * from t2 where a=3;
- check table t1,t2;
- select max(a) +1, max(a) +2 into @xx,@yy from t1;
- drop table t1,t2;
- #
- # error conditions
- #
- --error 1193
- select @@xxxxxxxxxx;
- select 1;
- --error 1238
- select @@session.key_buffer_size;
- --error 1229
- set ft_boolean_syntax = @@init_connect;
- --error 1231
- set global ft_boolean_syntax = @@init_connect;
- --error 1229
- set init_connect = NULL;
- set global init_connect = NULL;
- --error 1229
- set ft_boolean_syntax = @@init_connect;
- --error 1231
- set global ft_boolean_syntax = @@init_connect;
- # Bug#3754 SET GLOBAL myisam_max_sort_file_size doesn't work as
- # expected: check that there is no overflow when 64-bit unsigned
- # variables are set
- set global myisam_max_sort_file_size=4294967296;
- --replace_result 4294967296 MAX_FILE_SIZE 2146435072 MAX_FILE_SIZE
- show global variables like 'myisam_max_sort_file_size';
- set global myisam_max_sort_file_size=default;
- #
- # swap
- #
- select @@global.max_user_connections,@@local.max_join_size;
- set @svc=@@global.max_user_connections, @svj=@@local.max_join_size;
- select @@global.max_user_connections,@@local.max_join_size;
- set @@global.max_user_connections=111,@@local.max_join_size=222;
- select @@global.max_user_connections,@@local.max_join_size;
- 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;
- set @@global.max_user_connections=@svc, @@local.max_join_size=@svj;
- select @@global.max_user_connections,@@local.max_join_size;
- set @a=1, @b=2;
- set @a=@b, @b=@a;
- select @a, @b;
- #
- # Bug#2586:Disallow global/session/local as structured var. instance names
- #
- --error 1064
- set @@global.global.key_buffer_size= 1;
- --error 1064
- set GLOBAL global.key_buffer_size= 1;
- --error 1064
- SELECT @@global.global.key_buffer_size;
- --error 1064
- SELECT @@global.session.key_buffer_size;
- --error 1064
- SELECT @@global.local.key_buffer_size;
- # BUG#5135: cannot turn on log_warnings with SET in 4.1 (and 4.0)
- set @tstlw = @@log_warnings;
- show global variables like 'log_warnings';
- set global log_warnings = 0;
- show global variables like 'log_warnings';
- set global log_warnings = 42;
- show global variables like 'log_warnings';
- set global log_warnings = @tstlw;
- show global variables like 'log_warnings';
- #
- # BUG#4788 show create table provides incorrect statement
- #
- # What default width have numeric types?
- create table t1 (
- c1 tinyint,
- c2 smallint,
- c3 mediumint,
- c4 int,
- c5 bigint);
- show create table t1;
- drop table t1;
- #
- # What types and widths have variables?
- 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;
- drop table t1;
- #
- # Bug #6993: myisam_data_pointer_size
- # Wrong bug report, data pointer size must be restricted to 7,
- # setting to 8 will not work on all computers, myisamchk and
- # the server may see a wrong value, such as 0 or negative number
- # if 8 bytes is set.
- #
- SET GLOBAL MYISAM_DATA_POINTER_SIZE= 7;
- SHOW VARIABLES LIKE 'MYISAM_DATA_POINTER_SIZE';
- #
- # Bug #6958: negative arguments to integer options wrap around
- #
- SET GLOBAL table_cache=-1;
- SHOW VARIABLES LIKE 'table_cache';
- SET GLOBAL table_cache=DEFAULT;
- #
- # Bugs12363: character_set_results is nullable,
- # but value_ptr returns string "NULL"
- #
- set character_set_results=NULL;
- select ifnull(@@character_set_results,"really null");
- set names latin1;
- #
- # Bug #9613: @@have_innodb
- #
- --replace_column 1 #
- select @@have_innodb;
- #
- # Bug #13334: query_prealloc_size default less than minimum
- #
- set @test = @@query_prealloc_size;
- set @@query_prealloc_size = @test;
- select @@query_prealloc_size = @test;
- # End of 4.1 tests