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Create 'main' test directory and move 't' and 'r' there

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Michael Widenius
2018-03-09 14:05:35 +02:00
committed by Monty
parent ab1941266c
commit a7abddeffa
2114 changed files with 75 additions and 77 deletions
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30
mysql-test/main/order_by_optimizer.result Normal file
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drop table if exists t0,t1,t2,t3;
#
# MDEV-7885: EXPLAIN shows wrong info for ORDER BY query
#
create table t0(a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1(a int);
insert into t1 select A.a + B.a* 10 + C.a * 100 from t0 A, t0 B, t0 C;
create table t2 (key1 int, col1 int, key(key1));
insert into t2 select a,a from t0;
insert into t2 select 15,15 from t1;
alter table t2 add key2 int, add key(key2);
# This must show "Using filesort":
explain
select * from t2 ignore index for order by (key1) where col1<0 order by key1 limit 10;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 1010 Using where; Using filesort
drop table t0, t1, t2;
#
# MDEV-8857: [Upstream too] EXPLAIN incorrectly shows Distinct for tables using join buffer
#
create table t0(a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1 (a int, filler char(200), key(a));
insert into t1 select A.a + B.a* 10, 'AAAAAAAAAAAAAAAAAAAA' from t0 A, t0 B where B.a in (0,1);
explain select distinct A.a from t0 A, t1 B where A.a+B.a> 0;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE A ALL NULL NULL NULL NULL 10 Using temporary
1 SIMPLE B index NULL a 5 NULL 20 Using where; Using index; Using join buffer (flat, BNL join)
drop table t0, t1;