reopenscan.out

derby database source code.good for you.

ij> --
-- Test reopening scans.  A in subquery generates
-- a lot of reopen requests to the underlying scan.
-- We are used to having to reopen something like a
-- base table scan, but we need to be careful reopening
-- things like join nodes.  This test is to ensure
-- that we don't leave around any state when reopening
-- various complex nodes.
drop table x;
ERROR 42Y55: 'DROP TABLE' cannot be performed on 'X' because it does not exist.
ij> drop table y;
ERROR 42Y55: 'DROP TABLE' cannot be performed on 'Y' because it does not exist.
ij> drop table z;
ERROR 42Y55: 'DROP TABLE' cannot be performed on 'Z' because it does not exist.
ij> create table x (x int);
0 rows inserted/updated/deleted
ij> create table y (x int);
0 rows inserted/updated/deleted
ij> create table z (x int);
0 rows inserted/updated/deleted
ij> insert into x values 1,2,3;
3 rows inserted/updated/deleted
ij> insert into y values 1,2,3;
3 rows inserted/updated/deleted
ij> insert into z values 3,2,3,2;
4 rows inserted/updated/deleted
ij> select x from y where x in (select x from x);
X          
-----------
1          
2          
3          
ij> select x from z where x in (1,2,3);
X          
-----------
3          
2          
3          
2          
ij> --
-- nested loop
--
-- one row right side
select x from z where x in (select x from y where x in (select x from x));
X          
-----------
3          
2          
3          
2          
ij> -- not one row right side
select x from z where x in (select x.x from x,y where x.x=y.x);
X          
-----------
3          
2          
3          
2          
ij> --
-- hash join
--
select x from z where x in (select x.x from x,y where x.x=y.x);
X          
-----------
3          
2          
3          
2          
ij> --
-- outer join
--
select x from z where x in (select x.x from x left outer join y on (y.x=x.x));
X          
-----------
3          
2          
3          
2          
ij> delete from y;
3 rows inserted/updated/deleted
ij> insert into y values 0,1,5,2,2;
5 rows inserted/updated/deleted
ij> select x.x from x left outer join y on (y.x=x.x);
X          
-----------
1          
2          
2          
3          
ij> select x from z where x in (select x.x from x left outer join y on (y.x=x.x));
X          
-----------
3          
2          
3          
2          
ij> delete from x;
3 rows inserted/updated/deleted
ij> insert into x values 0,1,5,2,2;
5 rows inserted/updated/deleted
ij> delete from y;
5 rows inserted/updated/deleted
ij> insert into y values 1,2,3;
3 rows inserted/updated/deleted
ij> select x.x from x left outer join y on (y.x=x.x);
X          
-----------
0          
1          
5          
2          
2          
ij> select x from z where x in (select x.x from x left outer join y on (y.x=x.x));
X          
-----------
2          
2          
ij> insert into z values 1,5;
2 rows inserted/updated/deleted
ij> select x from z where x in (select x.x from x left outer join y on (y.x=x.x));
X          
-----------
2          
2          
1          
5          
ij> --
-- aggregate result set
--
delete from x;
5 rows inserted/updated/deleted
ij> delete from y;
3 rows inserted/updated/deleted
ij> delete from z;
6 rows inserted/updated/deleted
ij> insert into x values 1,2,3;
3 rows inserted/updated/deleted
ij> insert into y values 1,2,3;
3 rows inserted/updated/deleted
ij> insert into z values 3,2,666,3,2,null,2;
7 rows inserted/updated/deleted
ij> select x from z where x in (select x from x group by x);
X          
-----------
3          
2          
3          
2          
2          
ij> select x from z where x in (select max(x) from x group by x);
X          
-----------
3          
2          
3          
2          
2          
ij> select x from z where x in (select max(x) from x);
X          
-----------
3          
3          
ij> select x from z where x in (select sum(distinct x) from x group by x);
X          
-----------
3          
2          
3          
2          
2          
ij> insert into x values 1,1,2,2,2,5,5,null,6;
9 rows inserted/updated/deleted
ij> select x from z where x in (select sum(distinct x) from x group by x);
X          
-----------
3          
WARNING 01003: Null values were eliminated from the argument of a column function.
2          
3          
2          
2          
ij> --
-- union
--
delete from x;
12 rows inserted/updated/deleted
ij> delete from y;
3 rows inserted/updated/deleted
ij> delete from z;
7 rows inserted/updated/deleted
ij> insert into x values null,2,3;
3 rows inserted/updated/deleted
ij> insert into y values 1,2,null;
3 rows inserted/updated/deleted
ij> insert into z values 3,2,666,3,2,null,2;
7 rows inserted/updated/deleted
ij> select x from z where x in (select x from x union select x from y);
X          
-----------
3          
2          
3          
2          
2          
ij> --
-- normalize
--
delete from x;
3 rows inserted/updated/deleted
ij> delete from y;
3 rows inserted/updated/deleted
ij> delete from z;
7 rows inserted/updated/deleted
ij> create table n (x smallint);
0 rows inserted/updated/deleted
ij> insert into n values 1,2,3;
3 rows inserted/updated/deleted
ij> insert into x values 1,2,3;
3 rows inserted/updated/deleted
ij> select * from x where x in (select x from n);
X          
-----------
1          
2          
3          
ij>