# # test variables # --disable_warnings drop table if exists t1,t2; --enable_warnings # case insensitivity tests (new in 5.0) set @`test`=1; select @test, @`test`, @TEST, @`TEST`, @"teSt"; set @TEST=2; select @test, @`test`, @TEST, @`TEST`, @"teSt"; set @"tEST"=3; select @test, @`test`, @TEST, @`TEST`, @"teSt"; set @`TeST`=4; select @test, @`test`, @TEST, @`TEST`, @"teSt"; select @`teST`:=5; select @test, @`test`, @TEST, @`TEST`, @"teSt"; set @select=2,@t5=1.23456; select @`select`,@not_used; set @test_int=10,@test_double=1e-10,@test_string="abcdeghi",@test_string2="abcdefghij",@select=NULL; # Expected result "1e-10", windows returns "1e-010" --replace_result 1e-010 1e-10 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 GLOBAL max_join_size=10; 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=2; 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=DEFAULT; select @@concurrent_insert; set global timed_mutexes=ON; show variables like 'timed_mutexes'; set global timed_mutexes=0; show variables like 'timed_mutexes'; 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 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 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 @@max_sp_recursion_depth=10; select @@max_sp_recursion_depth; set @@max_sp_recursion_depth=0; select @@max_sp_recursion_depth; 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', @arg03= 0.2e0; create table t1 as select @arg00 as c1, @arg01 as c2, @arg02 as c3, @arg03 as c4; 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 # # Bug#6282 Packet error with SELECT INTO # create table t1 (a int); select a into @x from t1; show warnings; drop table t1; # # Bug #10339: read only variables. # --error 1238 set @@warning_count=1; --error 1238 set @@global.error_count=1; # # Bug #10351: Setting ulong variable to > MAX_ULONG fails on 32-bit platform # set @@max_heap_table_size= 4294967296; select @@max_heap_table_size > 0; set global max_heap_table_size= 4294967296; select @@max_heap_table_size > 0; set @@max_heap_table_size= 4294967296; select @@max_heap_table_size > 0; # # Bug #11775 Variable character_set_system does not exist (sometimes) # select @@character_set_system; --error 1238 set global character_set_system = latin1; --error 1238 set @@global.version_compile_os='234'; # # Check character_set_filesystem variable # set character_set_filesystem=latin1; select @@character_set_filesystem; set @@global.character_set_filesystem=latin2; set character_set_filesystem=latin1; select @@character_set_filesystem; set @@global.character_set_filesystem=latin2; set character_set_filesystem=default; select @@character_set_filesystem; set @@global.character_set_filesystem=default; select @@global.character_set_filesystem; # End of 5.0 tests