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cleunup() of count() and max()/min() added (BUG#2687)

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bell@sanja.is.com.ua
2004-06-10 10:59:55 +03:00
parent aa3c80fb7d
commit ba82b9e7d5
4 changed files with 71 additions and 0 deletions
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28
mysql-test/r/func_group.result
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@@ -656,3 +656,31 @@ select stddev(2) from t1;
stddev(2)
NULL
drop table t1;
create table t1 (a int);
insert into t1 values (1),(2);
prepare stmt1 from 'SELECT COUNT(*) FROM t1';
execute stmt1;
COUNT(*)
2
execute stmt1;
COUNT(*)
2
execute stmt1;
COUNT(*)
2
deallocate prepare stmt1;
drop table t1;
create table t1 (a int, primary key(a));
insert into t1 values (1),(2);
prepare stmt1 from 'SELECT max(a) FROM t1';
execute stmt1;
max(a)
2
execute stmt1;
max(a)
2
execute stmt1;
max(a)
2
deallocate prepare stmt1;
drop table t1;

22
mysql-test/t/func_group.test
View File

@@ -396,3 +396,25 @@ create table t1 (a int);
select variance(2) from t1;
select stddev(2) from t1;
drop table t1;
#
# cleunup() of optimized away count(*) and max/min
#
create table t1 (a int);
insert into t1 values (1),(2);
prepare stmt1 from 'SELECT COUNT(*) FROM t1';
execute stmt1;
execute stmt1;
execute stmt1;
deallocate prepare stmt1;
drop table t1;
create table t1 (a int, primary key(a));
insert into t1 values (1),(2);
prepare stmt1 from 'SELECT max(a) FROM t1';
execute stmt1;
execute stmt1;
execute stmt1;
deallocate prepare stmt1;
drop table t1;