config root man

 #Get deafult engine value
--let $DEFAULT_ENGINE = `select @@global.default_storage_engine`

#
# system functions
#
SET sql_mode = 'NO_ENGINE_SUBSTITUTION';
select database();
select charset(database());
select database() = "test";
select database() = _utf8"test";
select database() = _latin1"test";

select user() like "%@%";
select user() like _utf8"%@%";
select user() like _latin1"%@%";
select charset(user());

select version()>="3.23.29";
select version()>=_utf8"3.23.29";
select version()>=_latin1"3.23.29";
select charset(version());
explain extended select database(), user();

create table t1 (version char(60)) select database(), user(), version() as 'version';

#Replace default engine value with static engine string 
--replace_result $DEFAULT_ENGINE ENGINE
show create table t1;
drop table t1;

select charset(charset(_utf8'a')), charset(collation(_utf8'a'));
select collation(charset(_utf8'a')), collation(collation(_utf8'a'));
create table t1 select charset(_utf8'a'), collation(_utf8'a');

#Replace default engine value with static engine string 
--replace_result $DEFAULT_ENGINE ENGINE
show create table t1;
drop table t1;

select TRUE,FALSE,NULL;
SET sql_mode = default;
#
# Bug#12351: CONCAT with USER()/DATEBASE() and
# a constant and a column gets strange results
#
create table t1 (c1 char(5)) character set=latin1;
insert into t1 values('row 1');
insert into t1 values('row 2');
insert into t1 values('row 3');
select concat(user(), '--', c1) from t1;
select concat(database(), '--', c1) from t1;
drop table t1;

#
# Bug#8291 Illegal collation mix with USER() function
#
create table t1 (a char(10)) character set latin1;
select * from t1 where a=version();
select * from t1 where a=database();
select * from t1 where a=user();
insert into t1 values ('a');
select left(concat(a,version()),1) from t1;
drop table t1;

# End of 4.1 tests