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# This is a delay_key_write option,specific to Myisam
# So this feature is not supported by InnoDB
# Hence MTR starts mysqld with MyISAM as default
--source include/force_myisam_default.inc
--source include/have_myisam.inc
#
# Test of count(distinct ..)
#
--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1(n int not null, key(n)) delay_key_write = 1;
let $1=100;
disable_query_log;
while ($1)
{
eval insert into t1 values($1);
eval insert into t1 values($1);
dec $1;
}
enable_query_log;
select count(distinct n) from t1;
explain extended select count(distinct n) from t1;
drop table t1;
# End of 4.1 tests