config root man

create table t1 (a int key) engine ndb;
insert into t1 values (1);
insert into t1 select a+1 from t1;
insert into t1 select a+2 from t1;
insert into t1 select a+4 from t1;
insert into t1 select a+8 from t1;
insert into t1 select a+16 from t1;
insert into t1 select a+32 from t1;
insert into t1 select a+64 from t1;
insert into t1 select a+128 from t1;
select count(*) from t1;
count(*)
256

# test: simple delete of multiple pk's
# expected result 1 roundtrips
# 0 - info call
# 0 - read the rows (with read before delete, this is 1)
# 0 - delete the rows (without bulk update this is 5 + 1 for execute no commit)
# 1 - delete the row + commit the transaction

delete from t1 where a in (1,7, 90, 100, 130);
affected rows: 5
@ndb_execute_count:=VARIABLE_VALUE-@ndb_init_execute_count
1
affected rows: 1
# expected result 1 roundtrips
# 0 - info call
# 0 - read the rows 
# 0 - delete the rows 
# 1 - commit
# affected = 0

delete from t1 where a=1000;
affected rows: 0
@ndb_execute_count:=VARIABLE_VALUE-@ndb_init_execute_count
1
affected rows: 1
# expected result 1 roundtrips
# 0 - info call
# 0 - read the rows 
# 0 - delete the rows 
# 1 - commit
# affected = 0

delete from t1 where a in (1000, 1001, 1002, 1003, 1004);
affected rows: 0
@ndb_execute_count:=VARIABLE_VALUE-@ndb_init_execute_count
1
affected rows: 1
select count(*) as "0(was deleted)" from t1 where a in (1,7, 90, 100, 130);
0(was deleted)
0
select count(*) as "0(never existed)" from t1 where a=1000;
0(never existed)
0
select count(*) as "0(never existed)" from t1
where a in (1000, 1001, 1002, 1003, 1004);
0(never existed)
0
select count(*) as "251(remaining)" from t1;
251(remaining)
251
select count(*) as "5(not deleted)" from t1 where a in (2, 3, 4, 5, 6);
5(not deleted)
5
drop table t1;
create table t2 (a int primary key, b varchar(256)) engine ndb;
Has loaded 2000 rows
2000
Should be 1500 rows left now
1500
drop table t2, t3;