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-rw-r--r--mysql-test/main/derived_split_innodb.result82
1 files changed, 55 insertions, 27 deletions
diff --git a/mysql-test/main/derived_split_innodb.result b/mysql-test/main/derived_split_innodb.result
index 6346b44d..90b980bb 100644
--- a/mysql-test/main/derived_split_innodb.result
+++ b/mysql-test/main/derived_split_innodb.result
@@ -20,7 +20,7 @@ EXPLAIN SELECT t1.n1 FROM t1, (SELECT n1, n2 FROM t1 WHERE c1 = 'a' GROUP BY n1)
WHERE t.n1 = t1.n1 AND t.n2 = t1.n2 AND c1 = 'a' GROUP BY n1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ref c1,n1_c1_n2 c1 1 const 2 Using index condition; Using where; Using temporary; Using filesort
-1 PRIMARY <derived2> ref key0 key0 8 test.t1.n1,test.t1.n2 2
+1 PRIMARY <derived2> ref key0 key0 8 test.t1.n1,test.t1.n2 1
2 LATERAL DERIVED t1 ref c1,n1_c1_n2 n1_c1_n2 4 test.t1.n1 1 Using where; Using index
SELECT t1.n1 FROM t1, (SELECT n1, n2 FROM t1 WHERE c1 = 'a' GROUP BY n1) as t
WHERE t.n1 = t1.n1 AND t.n2 = t1.n2 AND c1 = 'a' GROUP BY n1;
@@ -49,7 +49,7 @@ t2
WHERE t2.id2=t.id2;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where
-1 PRIMARY <derived2> ref key0 key0 5 test.t2.id2 2
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.id2 1
2 DERIVED t3 ALL NULL NULL NULL NULL 1 Using where; Using temporary; Using filesort
2 DERIVED t1 eq_ref PRIMARY,id2 PRIMARY 4 test.t3.i3 1
2 DERIVED t2 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (flat, BNL join)
@@ -99,7 +99,7 @@ ON t2.id=t.id
WHERE t2.id < 3;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 Using where
-1 PRIMARY <derived2> ref key0 key0 5 test.t2.id 2
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.id 1
2 LATERAL DERIVED t1 eq_ref PRIMARY PRIMARY 4 test.t2.id 1
set join_cache_level=default;
DROP TABLE t1,t2;
@@ -128,8 +128,8 @@ left join
(v1 join t1 as t on v1.f1=t.f1 and t.f2 = null)
on t1.f1=t.f1;
id select_type table type possible_keys key key_len ref rows Extra
-1 PRIMARY t const f2 NULL NULL NULL 1 Impossible ON condition
-1 PRIMARY <derived2> const key1 NULL NULL NULL 1 Impossible ON condition
+1 PRIMARY t const f2 NULL NULL NULL 0 Impossible ON condition
+1 PRIMARY <derived2> const key0,key1 NULL NULL NULL 0 Impossible ON condition
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
2 DERIVED t2 ALL PRIMARY NULL NULL NULL 3 Using temporary; Using filesort
set statement optimizer_switch='split_materialized=off' for explain select t.f2
@@ -138,8 +138,8 @@ left join
(v1 join t1 as t on v1.f1=t.f1 and t.f2 = null)
on t1.f1=t.f1;
id select_type table type possible_keys key key_len ref rows Extra
-1 PRIMARY t const f2 NULL NULL NULL 1 Impossible ON condition
-1 PRIMARY <derived3> const key1 NULL NULL NULL 1 Impossible ON condition
+1 PRIMARY t const f2 NULL NULL NULL 0 Impossible ON condition
+1 PRIMARY <derived3> const key0,key1 NULL NULL NULL 0 Impossible ON condition
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
3 DERIVED t2 index NULL PRIMARY 4 NULL 3
drop view v1;
@@ -157,26 +157,26 @@ set statement optimizer_switch='split_materialized=off' for EXPLAIN
SELECT *
FROM
t1 JOIN
-(SELECT t1.a, t1.b FROM t1, t2 WHERE t1.b = t2.c GROUP BY t1.a, t1.b) as dt
+(SELECT t1_inner.a, t1_inner.b FROM t1 as t1_inner, t2 as t2_inner WHERE t1_inner.b = t2_inner.c GROUP BY t1_inner.a, t1_inner.b) as dt
WHERE
t1.a = dt.a;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index a,a_2 a_2 10 NULL 6 Using where; Using index
-1 PRIMARY <derived3> ref key0 key0 5 test.t1.a 2
-3 DERIVED t1 index NULL a_2 10 NULL 6 Using where; Using index
-3 DERIVED t2 ref c c 5 test.t1.b 1 Using index
+1 PRIMARY <derived3> ref key0 key0 5 test.t1.a 1
+3 DERIVED t1_inner index NULL a_2 10 NULL 6 Using where; Using index
+3 DERIVED t2_inner ref c c 5 test.t1_inner.b 1 Using index
set statement optimizer_switch='split_materialized=on' for EXPLAIN
SELECT *
FROM
t1 JOIN
-(SELECT t1.a, t1.b FROM t1, t2 WHERE t1.b = t2.c GROUP BY t1.a, t1.b) as dt
+(SELECT t1_inner.a, t1_inner.b FROM t1 as t1_inner, t2 as t2_inner WHERE t1_inner.b = t2_inner.c GROUP BY t1_inner.a, t1_inner.b) as dt
WHERE
t1.a = dt.a;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index a,a_2 a_2 10 NULL 6 Using where; Using index
-1 PRIMARY <derived3> ref key0 key0 5 test.t1.a 2
-3 LATERAL DERIVED t1 ref a,a_2 a 5 test.t1.a 1 Using where; Using temporary; Using filesort
-3 LATERAL DERIVED t2 ref c c 5 test.t1.b 1 Using index
+1 PRIMARY <derived3> ref key0 key0 5 test.t1.a 1
+3 DERIVED t1_inner index a,a_2 a_2 10 NULL 6 Using where; Using index
+3 DERIVED t2_inner ref c c 5 test.t1_inner.b 1 Using index
DROP TABLE t1, t2;
#
# Bug mdev-25714: usage non-splitting covering index is cheaper than
@@ -208,8 +208,8 @@ t2
where t1.id = dt.id and t1.itemid = dt.itemid and t2.id=t1.itemid;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 1
-1 PRIMARY <derived2> ref key1 key1 4 test.t2.id 2
-1 PRIMARY t1 ALL idx NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
+1 PRIMARY <derived2> ref key1 key1 4 test.t2.id 1
+1 PRIMARY t1 ref idx idx 4 test.t2.id 3 Using where
2 DERIVED t3 ref idx1,idx2 idx1 4 const 5 Using where; Using index
select t1.id, t1.itemid, dt.id, t2.id
from t1,
@@ -227,8 +227,8 @@ t2
where t1.id = dt.id and t1.itemid = dt.itemid and t2.id=t1.itemid;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 1
-1 PRIMARY <derived2> ref key1 key1 4 test.t2.id 2
-1 PRIMARY t1 ALL idx NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join)
+1 PRIMARY <derived2> ref key1 key1 4 test.t2.id 1
+1 PRIMARY t1 ref idx idx 4 test.t2.id 3 Using where
2 DERIVED t3 ref idx1 idx1 4 const 5 Using where; Using index
select t1.id, t1.itemid, dt.id, t2.id
from t1,
@@ -273,7 +273,7 @@ on t3.a=t.a and t3.c=t.c
where t3.b > 15;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 range idx_b idx_b 5 NULL 2 Using index condition; Using where
-1 PRIMARY <derived2> ref key0 key0 133 test.t3.a,test.t3.c 2
+1 PRIMARY <derived2> ref key0 key0 133 test.t3.a,test.t3.c 1
2 LATERAL DERIVED t4 ref idx idx 133 test.t3.a,test.t3.c 1
# ... and if one adds WITH ROLLUP, then LATERAL DERIVED is no longer used:
explain select t3.a,t3.c,t.max,t.min
@@ -370,6 +370,7 @@ ANALYZE
},
"query_block": {
"select_id": 1,
+ "cost": "REPLACED",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"const_condition": "1",
@@ -378,9 +379,11 @@ ANALYZE
"table": {
"table_name": "t1",
"access_type": "ALL",
+ "loops": 1,
"r_loops": 1,
"rows": 5,
"r_rows": 5,
+ "cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"r_engine_stats": REPLACED,
@@ -397,9 +400,11 @@ ANALYZE
"key_length": "5",
"used_key_parts": ["a"],
"ref": ["test.t1.b"],
+ "loops": 5,
"r_loops": 5,
"rows": 2,
"r_rows": 2,
+ "cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"r_engine_stats": REPLACED,
@@ -417,9 +422,11 @@ ANALYZE
"key_length": "5",
"used_key_parts": ["a"],
"ref": ["test.t1.b"],
+ "loops": 10,
"r_loops": 10,
"rows": 3,
"r_rows": 3,
+ "cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"r_engine_stats": REPLACED,
@@ -437,9 +444,11 @@ ANALYZE
"key_length": "5",
"used_key_parts": ["grp_id"],
"ref": ["test.t1.b"],
+ "loops": 30,
"r_loops": 30,
"rows": 10,
"r_rows": 1,
+ "cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
@@ -449,6 +458,7 @@ ANALYZE
"lateral": 1,
"query_block": {
"select_id": 2,
+ "cost": "REPLACED",
"r_loops": 5,
"r_total_time_ms": "REPLACED",
"outer_ref_condition": "t1.b is not null",
@@ -462,9 +472,11 @@ ANALYZE
"key_length": "5",
"used_key_parts": ["grp_id"],
"ref": ["test.t1.b"],
+ "loops": 1,
"r_loops": 5,
"rows": 100,
"r_rows": 100,
+ "cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"r_engine_stats": REPLACED,
@@ -477,9 +489,11 @@ ANALYZE
"table": {
"table_name": "t11",
"access_type": "ALL",
+ "loops": 100,
"r_loops": 5,
"rows": 10,
"r_rows": 10,
+ "cost": "REPLACED",
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"r_engine_stats": REPLACED,
@@ -690,6 +704,14 @@ a b a b a b grp_id count(*)
5 5 5 2 5 2 5 100
5 5 5 2 5 3 5 100
set join_cache_level=4;
+set optimizer_trace=1;
+set @tmp=@@optimizer_switch, optimizer_switch='hash_join_cardinality=off';
+insert into t11
+select A.seq, A.seq from seq_11_to_100 A;
+analyze table t11 persistent for all;
+Table Op Msg_type Msg_text
+test.t11 analyze status Engine-independent statistics collected
+test.t11 analyze status OK
explain select *
from
(
@@ -711,7 +733,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ref a a 5 test.t1.b 3 Using where
1 PRIMARY <derived2> ref key0 key0 5 test.t1.b 10 Using where
2 LATERAL DERIVED t10 ref grp_id grp_id 5 test.t1.b 100
-2 LATERAL DERIVED t11 hash_ALL NULL #hash#$hj 5 test.t10.col1 10 Using where; Using join buffer (flat, BNLH join)
+2 LATERAL DERIVED t11 hash_ALL NULL #hash#$hj 5 test.t10.col1 100 Using where; Using join buffer (flat, BNLH join)
select *
from
(
@@ -758,7 +780,14 @@ a b a b a b grp_id count(*)
5 5 5 2 5 1 5 100
5 5 5 2 5 2 5 100
5 5 5 2 5 3 5 100
+set optimizer_switch=@tmp;
set join_cache_level=default;
+delete from t11;
+insert into t11 select A.seq, A.seq from seq_1_to_10 A;
+analyze table t11 persistent for all;
+Table Op Msg_type Msg_text
+test.t11 analyze status Engine-independent statistics collected
+test.t11 analyze status OK
drop index a on t2;
drop index a on t3;
explain select *
@@ -911,13 +940,12 @@ GROUP BY groupId, id
USING (groupId, id)
WHERE id IN (1,2,3,4,5,6,7,8);
id select_type table type possible_keys key key_len ref rows Extra
-1 PRIMARY t1 index PRIMARY PRIMARY 8 NULL 19 Using index
-1 PRIMARY <subquery4> eq_ref distinct_key distinct_key 4 func 1 Using where
-1 PRIMARY <derived3> ref key0 key0 8 test.t1.groupId,test.t1.id 2
-4 MATERIALIZED <derived5> ALL NULL NULL NULL NULL 8
+1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 19
+1 PRIMARY <derived3> ref key0 key0 8 test.t1.groupId,test.t1.id 1
+1 PRIMARY <derived5> eq_ref distinct_key distinct_key 4 test.t1.id 1 Using where
5 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
-3 LATERAL DERIVED t1 eq_ref PRIMARY PRIMARY 8 test.t1.groupId,test.t1.id 1 Using index
-3 LATERAL DERIVED <derived7> ref key0 key0 4 test.t1.id 2 Using where; FirstMatch(t1)
+3 LATERAL DERIVED t1 eq_ref PRIMARY PRIMARY 8 test.t1.groupId,test.t1.id 1
+3 LATERAL DERIVED <derived7> eq_ref distinct_key distinct_key 4 test.t1.id 1 Using where
7 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
set statement optimizer_switch='split_materialized=off, loosescan=off' for
set statement in_predicate_conversion_threshold=2 for
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-08 00:35:06 +0000