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source include/have_tokudb.inc;
# test that the query planner picks clustering keys for 3 table joins
# create table s
--disable_warnings
drop table if exists s;
--enable_warnings
create table s (a int, b int, c int) engine=tokudb;
# populate table s
let $a = 10;
while ($a) {
let $b = 10;
while ($b) {
let $c = 10;
while ($c) {
eval insert into s values ($a,$b,$c);
dec $c;
}
dec $b;
}
dec $a;
}
# create table t
--disable_warnings
drop table if exists t;
--enable_warnings
create table t like s;
insert into t select * from s;
# create table u;
--disable_warnings
drop table if exists u;
--enable_warnings
create table u like s;
insert into u select * from s;
# join with no keys
show create table s;
show create table t;
show create table u;
explain select straight_join * from s,t,u where s.b = t.b and s.c = t.c;
# join with uncovered keys
alter table s add key (b);
alter table t add key (b);
alter table u add key (c);
show create table s;
show create table t;
show create table u;
explain select straight_join * from s,t,u where s.b = t.b and s.c = u.c;
# join with clustering keys
alter table s add key (b) clustering=yes;
alter table t add key (b) clustering=yes;
alter table u add key (c) clustering=yes;
show create table s;
show create table t;
show create table u;
explain select straight_join * from s,t,u where s.b = t.b and s.c = u.c;
# cleanup
drop table s,t,u;
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