EVOLUTION-MANAGER

Edit File: count_distinct2.test

--disable_warnings
drop table if exists t1;
--enable_warnings

create table t1(n1 int, n2 int, s char(20), vs varchar(20), t text);
insert into t1 values (1,11, 'one','eleven', 'eleven'),
 (1,11, 'one','eleven', 'eleven'),
 (2,11, 'two','eleven', 'eleven'),
 (2,12, 'two','twevle', 'twelve'),
 (2,13, 'two','thirteen', 'foo'),
 (2,13, 'two','thirteen', 'foo'),
 (2,13, 'two','thirteen', 'bar'),
 (NULL,13, 'two','thirteen', 'bar'),
 (2,NULL, 'two','thirteen', 'bar'),
 (2,13, NULL,'thirteen', 'bar'),
 (2,13, 'two',NULL, 'bar'),
 (2,13, 'two','thirteen', NULL);

select distinct n1 from t1;
select count(distinct n1) from t1;

select distinct n2 from t1;
select count(distinct n2) from t1;

select distinct s from t1;
select count(distinct s) from t1;

select distinct vs from t1;
select count(distinct vs) from t1;

select distinct t from t1;
select count(distinct t) from t1;

select distinct n1,n2 from t1;
select count(distinct n1,n2) from t1;

select distinct n1,s from t1;
select count(distinct n1,s) from t1;

select distinct s,n1,vs from t1;
select count(distinct s,n1,vs) from t1;

select distinct s,t from t1;
select count(distinct s,t) from t1;

select count(distinct n1), count(distinct n2) from t1;

select count(distinct n2), n1 from t1 group by n1;
drop table t1;

# test the conversion from tree to MyISAM
create table t1 (n int default NULL);
let $1=5000;
--disable_query_log
begin;
while ($1)
{
 eval insert into t1 values($1);
 dec $1;
}
commit;
--enable_query_log

flush status;
select count(distinct n) from t1;
show status like 'Created_tmp_disk_tables';
drop table t1;

# Test use of MyISAM tmp tables
create table t1 (s text);
let $1=5000;
--disable_query_log
begin;
while ($1)
{
 eval insert into t1 values('$1');
 dec $1;
}
commit;
--enable_query_log
flush status;
select count(distinct s) from t1;
show status like 'Created_tmp_disk_tables';
drop table t1;

# End of 4.1 tests