diff options
Diffstat (limited to 'mysql-test/main/in_subq_cond_pushdown.result')
| -rw-r--r-- | mysql-test/main/in_subq_cond_pushdown.result | 3857 |
1 files changed, 3857 insertions, 0 deletions
diff --git a/mysql-test/main/in_subq_cond_pushdown.result b/mysql-test/main/in_subq_cond_pushdown.result new file mode 100644 index 00000000000..c9319a5fb86 --- /dev/null +++ b/mysql-test/main/in_subq_cond_pushdown.result @@ -0,0 +1,3857 @@ +CREATE TABLE t1 (a INT, b INT, c INT, d INT); +CREATE TABLE t2 (e INT, f INT, g INT); +CREATE TABLE t3 (x INT, y INT); +INSERT INTO t1 VALUES +(1,1,18,1), (2,1,25,1), (1,3,40,1), (2,3,40,4), +(4,2,24,4), (3,2,23,1), (1,2,40,2), (3,4,17,2), +(5,5,65,1), (2,3,70,3), (1,4,35,3), (2,3,25,3), +(2,2,40,4), (1,4,55,1), (5,3,72,4), (1,2,70,5); +INSERT INTO t2 VALUES +(1,2,38), (2,3,15), (1,3,40), (1,4,35), +(2,2,70), (3,4,23), (5,5,12), (5,4,17), +(3,3,17), (4,2,24), (2,5,25), (5,1,65); +INSERT INTO t3 VALUES +(1,25), (1,18), (2,15), (4,24), +(1,35), (3,23), (3,17), (2,15); +CREATE VIEW v1 AS +( +SELECT t3.x AS v1_x, t3.y AS v1_y FROM t3 WHERE t3.x<=3 +); +CREATE VIEW v2 AS +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.e +HAVING max_g>25 +); +# conjunctive subformula : pushing into HAVING +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.c<25 AND +(t1.a,t1.c) IN (SELECT t2.e,MAX(t2.g) FROM t2 WHERE t2.e<5 GROUP BY t2.e); +a b c d +4 2 24 4 +3 2 23 1 +SELECT * FROM t1 +WHERE t1.c<25 AND +(t1.a,t1.c) IN (SELECT t2.e,MAX(t2.g) FROM t2 WHERE t2.e<5 GROUP BY t2.e); +a b c d +4 2 24 4 +3 2 23 1 +EXPLAIN SELECT * FROM t1 +WHERE t1.c<25 AND +(t1.a,t1.c) IN (SELECT t2.e,MAX(t2.g) FROM t2 WHERE t2.e<5 GROUP BY t2.e); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.c<25 AND +(t1.a,t1.c) IN (SELECT t2.e,MAX(t2.g) FROM t2 WHERE t2.e<5 GROUP BY t2.e); +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.c < 25 and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "`MAX(t2.g)` < 25", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5" + } + } + } + } + } + } +} +# extracted AND formula : pushing into HAVING +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.c>55 AND t1.b<4 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +2 3 70 3 +SELECT * FROM t1 +WHERE t1.c>55 AND t1.b<4 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +2 3 70 3 +EXPLAIN SELECT * FROM t1 +WHERE t1.c>55 AND t1.b<4 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.c>55 AND t1.b<4 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.c > 55 and t1.b < 4 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "`MAX(t2.g)` > 55 and t2.f < 4", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5" + } + } + } + } + } + } +} +# extracted OR formula : pushing into HAVING +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.c>60 OR t1.c<25) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +4 2 24 4 +2 3 70 3 +SELECT * FROM t1 +WHERE (t1.c>60 OR t1.c<25) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +4 2 24 4 +2 3 70 3 +EXPLAIN SELECT * FROM t1 +WHERE (t1.c>60 OR t1.c<25) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.c>60 OR t1.c<25) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "(t1.c > 60 or t1.c < 25) and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "`MAX(t2.g)` > 60 or `MAX(t2.g)` < 25", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5" + } + } + } + } + } + } +} +# extracted AND-OR formula : pushing into HAVING +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE ((t1.c>60 OR t1.c<25) AND t1.b>2) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +2 3 70 3 +SELECT * FROM t1 +WHERE ((t1.c>60 OR t1.c<25) AND t1.b>2) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +2 3 70 3 +EXPLAIN SELECT * FROM t1 +WHERE ((t1.c>60 OR t1.c<25) AND t1.b>2) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE ((t1.c>60 OR t1.c<25) AND t1.b>2) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "(t1.c > 60 or t1.c < 25) and t1.b > 2 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "(`MAX(t2.g)` > 60 or `MAX(t2.g)` < 25) and t2.f > 2", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5" + } + } + } + } + } + } +} +# conjunctive subformula : pushing into HAVING +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE ((t1.a<2 OR t1.d>3) AND t1.b>1) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +4 2 24 4 +1 2 40 2 +SELECT * FROM t1 +WHERE ((t1.a<2 OR t1.d>3) AND t1.b>1) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +4 2 24 4 +1 2 40 2 +EXPLAIN SELECT * FROM t1 +WHERE ((t1.a<2 OR t1.d>3) AND t1.b>1) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE ((t1.a<2 OR t1.d>3) AND t1.b>1) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "(t1.a < 2 or t1.d > 3) and t1.b > 1 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "t2.f > 1", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5" + } + } + } + } + } + } +} +# using view IN subquery defINition : pushing into HAVING +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.c>20 AND +(t1.a,t1.c) IN +( +SELECT v1_x,MAX(v1_y) +FROM v1 +WHERE v1_x>1 +GROUP BY v1_x +) +; +a b c d +3 2 23 1 +SELECT * FROM t1 +WHERE t1.c>20 AND +(t1.a,t1.c) IN +( +SELECT v1_x,MAX(v1_y) +FROM v1 +WHERE v1_x>1 +GROUP BY v1_x +) +; +a b c d +3 2 23 1 +EXPLAIN SELECT * FROM t1 +WHERE t1.c>20 AND +(t1.a,t1.c) IN +( +SELECT v1_x,MAX(v1_y) +FROM v1 +WHERE v1_x>1 +GROUP BY v1_x +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 8 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.c>20 AND +(t1.a,t1.c) IN +( +SELECT v1_x,MAX(v1_y) +FROM v1 +WHERE v1_x>1 +GROUP BY v1_x +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.c > 20 and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["v1_x", "MAX(v1_y)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "`MAX(v1_y)` > 20", + "temporary_table": { + "table": { + "table_name": "t3", + "access_type": "ALL", + "rows": 8, + "filtered": 100, + "attached_condition": "t3.x > 1 and t3.x <= 3" + } + } + } + } + } + } +} +# using equality : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1,v1 +WHERE t1.c>20 AND t1.c=v1_y AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d v1_x v1_y +3 2 23 1 3 23 +SELECT * FROM t1,v1 +WHERE t1.c>20 AND t1.c=v1_y AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d v1_x v1_y +3 2 23 1 3 23 +EXPLAIN SELECT * FROM t1,v1 +WHERE t1.c>20 AND t1.c=v1_y AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t3 ALL NULL NULL NULL NULL 8 Using where +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where; Using join buffer (flat, BNL join) +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t3.y 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1,v1 +WHERE t1.c>20 AND t1.c=v1_y AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t3", + "access_type": "ALL", + "rows": 8, + "filtered": 100, + "attached_condition": "t3.y > 20 and t3.x <= 3 and t3.y is not null" + }, + "block-nl-join": { + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100 + }, + "buffer_type": "flat", + "buffer_size": "256Kb", + "join_type": "BNL", + "attached_condition": "t1.c = t3.y and t1.a is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t3.y"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "`MAX(t2.g)` > 20", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5" + } + } + } + } + } + } +} +# conjunctive subformula : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.a<2 AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 3 40 1 +1 2 40 2 +SELECT * FROM t1 +WHERE t1.a<2 AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 3 40 1 +1 2 40 2 +EXPLAIN SELECT * FROM t1 +WHERE t1.a<2 AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.a<2 AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a < 2 and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.e < 2" + } + } + } + } + } + } +} +# extracted AND formula : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.a>2 AND t1.a<5 AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +4 2 24 4 +3 2 23 1 +SELECT * FROM t1 +WHERE t1.a>2 AND t1.a<5 AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +4 2 24 4 +3 2 23 1 +EXPLAIN SELECT * FROM t1 +WHERE t1.a>2 AND t1.a<5 AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.a>2 AND t1.a<5 AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a > 2 and t1.a < 5 and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.e > 2 and t2.e < 5" + } + } + } + } + } + } +} +# extracted OR formula : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.a<2 OR t1.a>=4) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 3 40 1 +4 2 24 4 +1 2 40 2 +SELECT * FROM t1 +WHERE (t1.a<2 OR t1.a>=4) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 3 40 1 +4 2 24 4 +1 2 40 2 +EXPLAIN SELECT * FROM t1 +WHERE (t1.a<2 OR t1.a>=4) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.a<2 OR t1.a>=4) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "(t1.a < 2 or t1.a >= 4) and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and (t2.e < 2 or t2.e >= 4)" + } + } + } + } + } + } +} +# extracted AND-OR formula : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE ((t1.a<2 OR t1.a=5) AND t1.b>3) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +a b c d +1 4 35 3 +SELECT * FROM t1 +WHERE ((t1.a<2 OR t1.a=5) AND t1.b>3) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +a b c d +1 4 35 3 +EXPLAIN SELECT * FROM t1 +WHERE ((t1.a<2 OR t1.a=5) AND t1.b>3) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE ((t1.a<2 OR t1.a=5) AND t1.b>3) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "(t1.a < 2 or t1.a = 5) and t1.b > 3 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and (t2.e < 2 or t2.e = 5) and t2.f > 3" + } + } + } + } + } + } +} +# extracted AND-OR formula : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE ((t1.a<2 OR t1.a=5) AND t1.b>3) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +a b c d +1 4 35 3 +SELECT * FROM t1 +WHERE ((t1.a<2 OR t1.a=5) AND t1.b>3) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +a b c d +1 4 35 3 +EXPLAIN SELECT * FROM t1 +WHERE ((t1.a<2 OR t1.a=5) AND t1.b>3) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE ((t1.a<2 OR t1.a=5) AND t1.b>3) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "(t1.a < 2 or t1.a = 5) and t1.b > 3 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and (t2.e < 2 or t2.e = 5) and t2.f > 3" + } + } + } + } + } + } +} +# conjunctive subformula : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE ((t1.b<3 OR t1.d>2) AND t1.a<2) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 2 40 2 +SELECT * FROM t1 +WHERE ((t1.b<3 OR t1.d>2) AND t1.a<2) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 2 40 2 +EXPLAIN SELECT * FROM t1 +WHERE ((t1.b<3 OR t1.d>2) AND t1.a<2) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE ((t1.b<3 OR t1.d>2) AND t1.a<2) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "(t1.b < 3 or t1.d > 2) and t1.a < 2 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.e < 2" + } + } + } + } + } + } +} +# using equalities : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.d=1 AND t1.a=t1.d AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 3 40 1 +SELECT * FROM t1 +WHERE t1.d=1 AND t1.a=t1.d AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 3 40 1 +EXPLAIN SELECT * FROM t1 +WHERE t1.d=1 AND t1.a=t1.d AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 const,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.d=1 AND t1.a=t1.d AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a = 1 and t1.d = 1 and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["const", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e = 1" + } + } + } + } + } +} +# using equality : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.d>1 AND t1.a=t1.d AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +4 2 24 4 +SELECT * FROM t1 +WHERE t1.d>1 AND t1.a=t1.d AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +4 2 24 4 +EXPLAIN SELECT * FROM t1 +WHERE t1.d>1 AND t1.a=t1.d AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.d>1 AND t1.a=t1.d AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.d = t1.a and t1.a > 1 and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.e > 1" + } + } + } + } + } + } +} +# using view IN subquery definition : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.a<3 AND +(t1.a,t1.c) IN +( +SELECT v1_x,MAX(v1_y) +FROM v1 +WHERE v1_x>1 +GROUP BY v1_x +) +; +a b c d +SELECT * FROM t1 +WHERE t1.a<3 AND +(t1.a,t1.c) IN +( +SELECT v1_x,MAX(v1_y) +FROM v1 +WHERE v1_x>1 +GROUP BY v1_x +) +; +a b c d +EXPLAIN SELECT * FROM t1 +WHERE t1.a<3 AND +(t1.a,t1.c) IN +( +SELECT v1_x,MAX(v1_y) +FROM v1 +WHERE v1_x>1 +GROUP BY v1_x +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 8 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.a<3 AND +(t1.a,t1.c) IN +( +SELECT v1_x,MAX(v1_y) +FROM v1 +WHERE v1_x>1 +GROUP BY v1_x +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a < 3 and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["v1_x", "MAX(v1_y)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t3", + "access_type": "ALL", + "rows": 8, + "filtered": 100, + "attached_condition": "t3.x > 1 and t3.x <= 3 and t3.x < 3" + } + } + } + } + } + } +} +# using equality : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1,v1 +WHERE t1.a=v1_x AND v1_x<2 AND v1_y>30 AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d v1_x v1_y +1 3 40 1 1 35 +1 2 40 2 1 35 +SELECT * FROM t1,v1 +WHERE t1.a=v1_x AND v1_x<2 AND v1_y>30 AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d v1_x v1_y +1 3 40 1 1 35 +1 2 40 2 1 35 +EXPLAIN SELECT * FROM t1,v1 +WHERE t1.a=v1_x AND v1_x<2 AND v1_y>30 AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t3 ALL NULL NULL NULL NULL 8 Using where +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where; Using join buffer (flat, BNL join) +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t3.x,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1,v1 +WHERE t1.a=v1_x AND v1_x<2 AND v1_y>30 AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t3", + "access_type": "ALL", + "rows": 8, + "filtered": 100, + "attached_condition": "t3.x < 2 and t3.y > 30 and t3.x <= 3 and t3.x is not null" + }, + "block-nl-join": { + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100 + }, + "buffer_type": "flat", + "buffer_size": "256Kb", + "join_type": "BNL", + "attached_condition": "t1.a = t3.x and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t3.x", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.e <= 3" + } + } + } + } + } + } +} +# conjunctive subformula : pushing into WHERE +# extracted OR formula : pushing into HAVING +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE ((t1.b<3 OR t1.b=4) AND t1.a<3) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 2 40 2 +SELECT * FROM t1 +WHERE ((t1.b<3 OR t1.b=4) AND t1.a<3) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 2 40 2 +EXPLAIN SELECT * FROM t1 +WHERE ((t1.b<3 OR t1.b=4) AND t1.a<3) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE ((t1.b<3 OR t1.b=4) AND t1.a<3) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "(t1.b < 3 or t1.b = 4) and t1.a < 3 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "t2.f < 3 or t2.f = 4", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.e < 3" + } + } + } + } + } + } +} +# conjunctive subformula using addition : pushing into HAVING +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.a+t1.c>41) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +2 3 70 3 +SELECT * FROM t1 +WHERE (t1.a+t1.c>41) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +2 3 70 3 +EXPLAIN SELECT * FROM t1 +WHERE (t1.a+t1.c>41) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.a+t1.c>41) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a + t1.c > 41 and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "t2.e + `MAX(t2.g)` > 41", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5" + } + } + } + } + } + } +} +# conjunctive subformula using substitution : pushing into HAVING +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.c-t1.a<35) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +4 2 24 4 +3 2 23 1 +SELECT * FROM t1 +WHERE (t1.c-t1.a<35) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +4 2 24 4 +3 2 23 1 +EXPLAIN SELECT * FROM t1 +WHERE (t1.c-t1.a<35) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.c-t1.a<35) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.c - t1.a < 35 and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "`MAX(t2.g)` - t2.e < 35", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5" + } + } + } + } + } + } +} +# conjunctive subformula using multiplication : pushing into HAVING +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.c*t1.a>100) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +2 3 70 3 +SELECT * FROM t1 +WHERE (t1.c*t1.a>100) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +2 3 70 3 +EXPLAIN SELECT * FROM t1 +WHERE (t1.c*t1.a>100) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.c*t1.a>100) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.c * t1.a > 100 and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "`MAX(t2.g)` * t2.e > 100", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5" + } + } + } + } + } + } +} +# conjunctive subformula using division : pushing into HAVING +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.c/t1.a>30) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 3 40 1 +1 2 40 2 +2 3 70 3 +SELECT * FROM t1 +WHERE (t1.c/t1.a>30) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 3 40 1 +1 2 40 2 +2 3 70 3 +EXPLAIN SELECT * FROM t1 +WHERE (t1.c/t1.a>30) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.c/t1.a>30) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.c / t1.a > 30 and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "`MAX(t2.g)` / t2.e > 30", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5" + } + } + } + } + } + } +} +# conjunctive subformula using BETWEEN : pushing into HAVING +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.c BETWEEN 50 AND 100) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +2 3 70 3 +SELECT * FROM t1 +WHERE (t1.c BETWEEN 50 AND 100) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +2 3 70 3 +EXPLAIN SELECT * FROM t1 +WHERE (t1.c BETWEEN 50 AND 100) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.c BETWEEN 50 AND 100) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.c between 50 and 100 and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "`MAX(t2.g)` between 50 and 100", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5" + } + } + } + } + } + } +} +# conjunctive subformula using addition : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.a+t1.b > 5) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +a b c d +4 2 24 4 +SELECT * FROM t1 +WHERE (t1.a+t1.b > 5) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +a b c d +4 2 24 4 +EXPLAIN SELECT * FROM t1 +WHERE (t1.a+t1.b > 5) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.a+t1.b > 5) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a + t1.b > 5 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.e + t2.f > 5" + } + } + } + } + } + } +} +# conjunctive subformula using substitution : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.a-t1.b > 0) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +a b c d +4 2 24 4 +SELECT * FROM t1 +WHERE (t1.a-t1.b > 0) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +a b c d +4 2 24 4 +EXPLAIN SELECT * FROM t1 +WHERE (t1.a-t1.b > 0) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.a-t1.b > 0) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a - t1.b > 0 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.e - t2.f > 0" + } + } + } + } + } + } +} +# conjunctive subformula using multiplication : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.a*t1.b > 6) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +a b c d +4 2 24 4 +SELECT * FROM t1 +WHERE (t1.a*t1.b > 6) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +a b c d +4 2 24 4 +EXPLAIN SELECT * FROM t1 +WHERE (t1.a*t1.b > 6) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.a*t1.b > 6) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a * t1.b > 6 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.e * t2.f > 6" + } + } + } + } + } + } +} +# conjunctive subformula using division : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.b/t1.a > 2) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +a b c d +1 3 40 1 +1 4 35 3 +SELECT * FROM t1 +WHERE (t1.b/t1.a > 2) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +a b c d +1 3 40 1 +1 4 35 3 +EXPLAIN SELECT * FROM t1 +WHERE (t1.b/t1.a > 2) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.b/t1.a > 2) AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e,t2.f +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.b / t1.a > 2 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.f / t2.e > 2" + } + } + } + } + } + } +} +# conjunctive subformula using BETWEEN : pushing into WHERE +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.a BETWEEN 1 AND 3) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 3 40 1 +3 2 23 1 +1 2 40 2 +2 3 70 3 +SELECT * FROM t1 +WHERE (t1.a BETWEEN 1 AND 3) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +a b c d +1 3 40 1 +3 2 23 1 +1 2 40 2 +2 3 70 3 +EXPLAIN SELECT * FROM t1 +WHERE (t1.a BETWEEN 1 AND 3) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.a BETWEEN 1 AND 3) AND +(t1.a,t1.c) IN +( +SELECT t2.e,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a between 1 and 3 and t1.a is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["e", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.e between 1 and 3" + } + } + } + } + } + } +} +# conjunctive subformula : pushing into HAVING of the IN subquery +# conjunctive subformula : pushing into WHERE of the view from the IN subquery +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.c>3 AND +(t1.a,t1.b,t1.c) IN +( +SELECT v2.e,MAX(v2.f),v2.max_g +FROM v2 +WHERE v2.e<5 +GROUP BY v2.e +) +; +a b c d +1 2 40 2 +2 3 70 3 +SELECT * FROM t1 +WHERE t1.c>3 AND +(t1.a,t1.b,t1.c) IN +( +SELECT v2.e,MAX(v2.f),v2.max_g +FROM v2 +WHERE v2.e<5 +GROUP BY v2.e +) +; +a b c d +1 2 40 2 +2 3 70 3 +EXPLAIN SELECT * FROM t1 +WHERE t1.c>3 AND +(t1.a,t1.b,t1.c) IN +( +SELECT v2.e,MAX(v2.f),v2.max_g +FROM v2 +WHERE v2.e<5 +GROUP BY v2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 12 Using where; Using temporary +3 DERIVED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary; Using filesort +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.c>3 AND +(t1.a,t1.b,t1.c) IN +( +SELECT v2.e,MAX(v2.f),v2.max_g +FROM v2 +WHERE v2.e<5 +GROUP BY v2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.c > 3 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "MAX(v2.f)", "max_g"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "v2.max_g > 3", + "temporary_table": { + "table": { + "table_name": "<derived3>", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "v2.e < 5", + "materialized": { + "query_block": { + "select_id": 3, + "having_condition": "max_g > 25", + "filesort": { + "sort_key": "t2.e", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5" + } + } + } + } + } + } + } + } + } + } + } +} +# conjunctive subformula : pushing into WHERE of the IN subquery +# conjunctive subformula : pushing into WHERE of the view +# from the IN subquery +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT v2.e,MAX(v2.f),v2.max_g +FROM v2 +WHERE v2.e<5 +GROUP BY v2.e +) +; +a b c d +2 3 70 3 +SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT v2.e,MAX(v2.f),v2.max_g +FROM v2 +WHERE v2.e<5 +GROUP BY v2.e +) +; +a b c d +2 3 70 3 +EXPLAIN SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT v2.e,MAX(v2.f),v2.max_g +FROM v2 +WHERE v2.e<5 +GROUP BY v2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 12 Using where; Using temporary +3 DERIVED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary; Using filesort +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT v2.e,MAX(v2.f),v2.max_g +FROM v2 +WHERE v2.e<5 +GROUP BY v2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a > 1 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "MAX(v2.f)", "max_g"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "<derived3>", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "v2.e < 5 and v2.e > 1", + "materialized": { + "query_block": { + "select_id": 3, + "having_condition": "max_g > 25", + "filesort": { + "sort_key": "t2.e", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.e > 1" + } + } + } + } + } + } + } + } + } + } + } +} +# conjunctive subformula : pushing into WHERE and HAVING +# of the IN subquery +# conjunctive subformula : pushing into WHERE of the view +# from the IN subquery +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.a>1 AND t1.c<100 AND +(t1.a,t1.b,t1.c) IN +( +SELECT v2.e,MAX(v2.f),v2.max_g +FROM v2 +WHERE v2.e<5 +GROUP BY v2.e +) +; +a b c d +2 3 70 3 +SELECT * FROM t1 +WHERE t1.a>1 AND t1.c<100 AND +(t1.a,t1.b,t1.c) IN +( +SELECT v2.e,MAX(v2.f),v2.max_g +FROM v2 +WHERE v2.e<5 +GROUP BY v2.e +) +; +a b c d +2 3 70 3 +EXPLAIN SELECT * FROM t1 +WHERE t1.a>1 AND t1.c<100 AND +(t1.a,t1.b,t1.c) IN +( +SELECT v2.e,MAX(v2.f),v2.max_g +FROM v2 +WHERE v2.e<5 +GROUP BY v2.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 12 Using where; Using temporary +3 DERIVED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary; Using filesort +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.a>1 AND t1.c<100 AND +(t1.a,t1.b,t1.c) IN +( +SELECT v2.e,MAX(v2.f),v2.max_g +FROM v2 +WHERE v2.e<5 +GROUP BY v2.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a > 1 and t1.c < 100 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "MAX(v2.f)", "max_g"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "having_condition": "v2.max_g < 100", + "temporary_table": { + "table": { + "table_name": "<derived3>", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "v2.e < 5 and v2.e > 1", + "materialized": { + "query_block": { + "select_id": 3, + "having_condition": "max_g > 25", + "filesort": { + "sort_key": "t2.e", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.e > 1" + } + } + } + } + } + } + } + } + } + } + } +} +# conjunctive subformula : pushing into WHERE of the IN subquery +# extracted AND formula : pushing into HAVING of the derived table +# from the IN subquery +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT d_tab.e,MAX(d_tab.f),d_tab.max_g +FROM +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.f +HAVING max_g>25 +) as d_tab +WHERE d_tab.e<5 +GROUP BY d_tab.e +) +; +a b c d +2 3 40 4 +SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT d_tab.e,MAX(d_tab.f),d_tab.max_g +FROM +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.f +HAVING max_g>25 +) as d_tab +WHERE d_tab.e<5 +GROUP BY d_tab.e +) +; +a b c d +2 3 40 4 +EXPLAIN SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT d_tab.e,MAX(d_tab.f),d_tab.max_g +FROM +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.f +HAVING max_g>25 +) as d_tab +WHERE d_tab.e<5 +GROUP BY d_tab.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 12 Using where; Using temporary +3 DERIVED t2 ALL NULL NULL NULL NULL 12 Using temporary; Using filesort +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT d_tab.e,MAX(d_tab.f),d_tab.max_g +FROM +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.f +HAVING max_g>25 +) as d_tab +WHERE d_tab.e<5 +GROUP BY d_tab.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a > 1 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "MAX(d_tab.f)", "max_g"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "<derived3>", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "d_tab.e < 5 and d_tab.e > 1", + "materialized": { + "query_block": { + "select_id": 3, + "having_condition": "max_g > 25 and t2.e < 5 and t2.e > 1", + "filesort": { + "sort_key": "t2.f", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100 + } + } + } + } + } + } + } + } + } + } + } +} +# conjunctive subformula : pushing into HAVING of the derived table +# conjunctive subformula : pushing into WHERE of the IN subquery from +# the derived table +SELECT * +FROM t3, +( +SELECT t1.a,t1.b,max(t1.c) as max_c +FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.e<5 +GROUP BY t2.e +) +GROUP BY t1.a +) AS d_tab +WHERE d_tab.a=t3.x AND d_tab.b>2; +x y a b max_c +2 15 2 3 70 +2 15 2 3 70 +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT d_tab.e,MAX(d_tab.f),d_tab.max_g +FROM +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.f +HAVING max_g>25 +) as d_tab +WHERE d_tab.e<5 +GROUP BY d_tab.e +) +; +a b c d +2 3 40 4 +SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT d_tab.e,MAX(d_tab.f),d_tab.max_g +FROM +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.f +HAVING max_g>25 +) as d_tab +WHERE d_tab.e<5 +GROUP BY d_tab.e +) +; +a b c d +2 3 40 4 +EXPLAIN SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT d_tab.e,MAX(d_tab.f),d_tab.max_g +FROM +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.f +HAVING max_g>25 +) as d_tab +WHERE d_tab.e<5 +GROUP BY d_tab.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 12 Using where; Using temporary +3 DERIVED t2 ALL NULL NULL NULL NULL 12 Using temporary; Using filesort +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT d_tab.e,MAX(d_tab.f),d_tab.max_g +FROM +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.f +HAVING max_g>25 +) as d_tab +WHERE d_tab.e<5 +GROUP BY d_tab.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a > 1 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "MAX(d_tab.f)", "max_g"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "<derived3>", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "d_tab.e < 5 and d_tab.e > 1", + "materialized": { + "query_block": { + "select_id": 3, + "having_condition": "max_g > 25 and t2.e < 5 and t2.e > 1", + "filesort": { + "sort_key": "t2.f", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100 + } + } + } + } + } + } + } + } + } + } + } +} +# conjunctive subformula : pushing into WHERE of the derived table +# extracted AND formula : pushing into WHERE of the IN subquery from +# the derived table +SELECT * +FROM t3, +( +SELECT t1.a,t1.b,max(t1.c) as max_c +FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +GROUP BY t2.e +HAVING t2.f<5 +) +GROUP BY t1.a +) AS d_tab +WHERE d_tab.a=t3.x AND d_tab.a<5; +x y a b max_c +2 15 2 3 70 +4 24 4 2 24 +2 15 2 3 70 +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT d_tab.e,MAX(d_tab.f),d_tab.max_g +FROM +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.f +HAVING max_g>25 +) as d_tab +WHERE d_tab.e<5 +GROUP BY d_tab.e +) +; +a b c d +2 3 40 4 +SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT d_tab.e,MAX(d_tab.f),d_tab.max_g +FROM +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.f +HAVING max_g>25 +) as d_tab +WHERE d_tab.e<5 +GROUP BY d_tab.e +) +; +a b c d +2 3 40 4 +EXPLAIN SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT d_tab.e,MAX(d_tab.f),d_tab.max_g +FROM +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.f +HAVING max_g>25 +) as d_tab +WHERE d_tab.e<5 +GROUP BY d_tab.e +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 12 Using where; Using temporary +3 DERIVED t2 ALL NULL NULL NULL NULL 12 Using temporary; Using filesort +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT d_tab.e,MAX(d_tab.f),d_tab.max_g +FROM +( +SELECT t2.e, t2.f, MAX(t2.g) AS max_g +FROM t2 +GROUP BY t2.f +HAVING max_g>25 +) as d_tab +WHERE d_tab.e<5 +GROUP BY d_tab.e +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a > 1 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "MAX(d_tab.f)", "max_g"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "temporary_table": { + "table": { + "table_name": "<derived3>", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "d_tab.e < 5 and d_tab.e > 1", + "materialized": { + "query_block": { + "select_id": 3, + "having_condition": "max_g > 25 and t2.e < 5 and t2.e > 1", + "filesort": { + "sort_key": "t2.f", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100 + } + } + } + } + } + } + } + } + } + } + } +} +# conjunctive subformula : pushing into WHERE and HAVING +# of the derived table +# extracted AND formula : pushing into WHERE of the IN subquery +# from the derived table +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * +FROM t3, +( +SELECT t1.a,t1.b,max(t1.c) as max_c +FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +GROUP BY t2.e +HAVING t2.f<5 +) +GROUP BY t1.a +) AS d_tab +WHERE d_tab.a=t3.x AND d_tab.a<5 AND d_tab.max_c<70; +x y a b max_c +4 24 4 2 24 +SELECT * +FROM t3, +( +SELECT t1.a,t1.b,max(t1.c) as max_c +FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +GROUP BY t2.e +HAVING t2.f<5 +) +GROUP BY t1.a +) AS d_tab +WHERE d_tab.a=t3.x AND d_tab.a<5 AND d_tab.max_c<70; +x y a b max_c +4 24 4 2 24 +EXPLAIN SELECT * +FROM t3, +( +SELECT t1.a,t1.b,max(t1.c) as max_c +FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +GROUP BY t2.e +HAVING t2.f<5 +) +GROUP BY t1.a +) AS d_tab +WHERE d_tab.a=t3.x AND d_tab.a<5 AND d_tab.max_c<70; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t3 ALL NULL NULL NULL NULL 8 Using where +1 PRIMARY <derived2> ref key0 key0 5 test.t3.x 2 Using where +2 DERIVED t1 ALL NULL NULL NULL NULL 16 Using where; Using temporary; Using filesort +2 DERIVED <subquery3> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +3 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * +FROM t3, +( +SELECT t1.a,t1.b,max(t1.c) as max_c +FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +GROUP BY t2.e +HAVING t2.f<5 +) +GROUP BY t1.a +) AS d_tab +WHERE d_tab.a=t3.x AND d_tab.a<5 AND d_tab.max_c<70; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t3", + "access_type": "ALL", + "rows": 8, + "filtered": 100, + "attached_condition": "t3.x < 5 and t3.x is not null" + }, + "table": { + "table_name": "<derived2>", + "access_type": "ref", + "possible_keys": ["key0"], + "key": "key0", + "key_length": "5", + "used_key_parts": ["a"], + "ref": ["test.t3.x"], + "rows": 2, + "filtered": 100, + "attached_condition": "d_tab.max_c < 70", + "materialized": { + "query_block": { + "select_id": 2, + "having_condition": "max_c < 70", + "filesort": { + "sort_key": "t1.a", + "temporary_table": { + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a > 1 and t1.a < 5 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery3>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 3, + "having_condition": "t2.f < 5", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e > 1 and t2.e < 5" + } + } + } + } + } + } + } + } + } + } + } +} +# conjunctive subformula : pushing into WHERE of the derived table +# conjunctive subformula : pushing into HAVING of the IN subquery from +# the derived table +SELECT * +FROM t3, +( +SELECT t1.a,t1.b,max(t1.c) as max_c +FROM t1 +WHERE (t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +WHERE t2.f<4 +GROUP BY t2.f +) +GROUP BY t1.a +HAVING t1.b<5 +) AS d_tab +WHERE d_tab.a=t3.x AND d_tab.a<5; +x y a b max_c +1 25 1 2 70 +1 18 1 2 70 +2 15 2 3 40 +1 35 1 2 70 +2 15 2 3 40 +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * +FROM t3, +( +SELECT t1.a,t1.b,max(t1.c) as max_c +FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +GROUP BY t2.e +HAVING t2.f<5 +) +GROUP BY t1.a +) AS d_tab +WHERE d_tab.a=t3.x AND d_tab.a<5 AND d_tab.max_c<70; +x y a b max_c +4 24 4 2 24 +SELECT * +FROM t3, +( +SELECT t1.a,t1.b,max(t1.c) as max_c +FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +GROUP BY t2.e +HAVING t2.f<5 +) +GROUP BY t1.a +) AS d_tab +WHERE d_tab.a=t3.x AND d_tab.a<5 AND d_tab.max_c<70; +x y a b max_c +4 24 4 2 24 +EXPLAIN SELECT * +FROM t3, +( +SELECT t1.a,t1.b,max(t1.c) as max_c +FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +GROUP BY t2.e +HAVING t2.f<5 +) +GROUP BY t1.a +) AS d_tab +WHERE d_tab.a=t3.x AND d_tab.a<5 AND d_tab.max_c<70; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t3 ALL NULL NULL NULL NULL 8 Using where +1 PRIMARY <derived2> ref key0 key0 5 test.t3.x 2 Using where +2 DERIVED t1 ALL NULL NULL NULL NULL 16 Using where; Using temporary; Using filesort +2 DERIVED <subquery3> eq_ref distinct_key distinct_key 12 test.t1.a,test.t1.b,test.t1.c 1 +3 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * +FROM t3, +( +SELECT t1.a,t1.b,max(t1.c) as max_c +FROM t1 +WHERE t1.a>1 AND +(t1.a,t1.b,t1.c) IN +( +SELECT t2.e,t2.f,MAX(t2.g) +FROM t2 +GROUP BY t2.e +HAVING t2.f<5 +) +GROUP BY t1.a +) AS d_tab +WHERE d_tab.a=t3.x AND d_tab.a<5 AND d_tab.max_c<70; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t3", + "access_type": "ALL", + "rows": 8, + "filtered": 100, + "attached_condition": "t3.x < 5 and t3.x is not null" + }, + "table": { + "table_name": "<derived2>", + "access_type": "ref", + "possible_keys": ["key0"], + "key": "key0", + "key_length": "5", + "used_key_parts": ["a"], + "ref": ["test.t3.x"], + "rows": 2, + "filtered": 100, + "attached_condition": "d_tab.max_c < 70", + "materialized": { + "query_block": { + "select_id": 2, + "having_condition": "max_c < 70", + "filesort": { + "sort_key": "t1.a", + "temporary_table": { + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.a > 1 and t1.a < 5 and t1.a is not null and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery3>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["e", "f", "MAX(t2.g)"], + "ref": ["test.t1.a", "test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 3, + "having_condition": "t2.f < 5", + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e > 1 and t2.e < 5" + } + } + } + } + } + } + } + } + } + } + } +} +# conjunctive subformula : pushing into WHERE +# using WINDOW FUNCTIONS : using MAX function +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.b>1) AND +(t1.b, t1.c) IN +( +SELECT t2.f, MAX(t2.g) OVER (PARTITION BY t2.f) +FROM t2 +WHERE t2.e<5 +) +; +a b c d +1 3 40 1 +2 3 40 4 +1 4 35 3 +1 2 70 5 +SELECT * FROM t1 +WHERE (t1.b>1) AND +(t1.b, t1.c) IN +( +SELECT t2.f, MAX(t2.g) OVER (PARTITION BY t2.f) +FROM t2 +WHERE t2.e<5 +) +; +a b c d +1 3 40 1 +2 3 40 4 +1 4 35 3 +1 2 70 5 +EXPLAIN SELECT * FROM t1 +WHERE (t1.b>1) AND +(t1.b, t1.c) IN +( +SELECT t2.f, MAX(t2.g) OVER (PARTITION BY t2.f) +FROM t2 +WHERE t2.e<5 +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.b,test.t1.c 1 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.b>1) AND +(t1.b, t1.c) IN +( +SELECT t2.f, MAX(t2.g) OVER (PARTITION BY t2.f) +FROM t2 +WHERE t2.e<5 +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.b > 1 and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "8", + "used_key_parts": ["f", "MAX(t2.g) OVER (PARTITION BY t2.f)"], + "ref": ["test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "window_functions_computation": { + "sorts": { + "filesort": { + "sort_key": "t2.f" + } + }, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.f > 1" + } + } + } + } + } + } + } +} +# conjunctive subformula : pushing into WHERE +# using WINDOW FUNCTIONS : using SUM function +SET STATEMENT optimizer_switch='condition_pushdown_for_subquery=off' FOR SELECT * FROM t1 +WHERE (t1.b>1) AND +(t1.b, t1.c) IN +( +SELECT t2.f, CAST(SUM(t2.g) OVER (PARTITION BY t2.f) AS INT) +FROM t2 +WHERE t2.e<5 +) +; +a b c d +5 3 72 4 +SELECT * FROM t1 +WHERE (t1.b>1) AND +(t1.b, t1.c) IN +( +SELECT t2.f, CAST(SUM(t2.g) OVER (PARTITION BY t2.f) AS INT) +FROM t2 +WHERE t2.e<5 +) +; +a b c d +5 3 72 4 +EXPLAIN SELECT * FROM t1 +WHERE (t1.b>1) AND +(t1.b, t1.c) IN +( +SELECT t2.f, CAST(SUM(t2.g) OVER (PARTITION BY t2.f) AS INT) +FROM t2 +WHERE t2.e<5 +) +; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 16 Using where +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 12 test.t1.b,test.t1.c 1 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 12 Using where; Using temporary +EXPLAIN FORMAT=JSON SELECT * FROM t1 +WHERE (t1.b>1) AND +(t1.b, t1.c) IN +( +SELECT t2.f, CAST(SUM(t2.g) OVER (PARTITION BY t2.f) AS INT) +FROM t2 +WHERE t2.e<5 +) +; +EXPLAIN +{ + "query_block": { + "select_id": 1, + "table": { + "table_name": "t1", + "access_type": "ALL", + "rows": 16, + "filtered": 100, + "attached_condition": "t1.b > 1 and t1.b is not null and t1.c is not null" + }, + "table": { + "table_name": "<subquery2>", + "access_type": "eq_ref", + "possible_keys": ["distinct_key"], + "key": "distinct_key", + "key_length": "12", + "used_key_parts": ["f", "CAST(SUM(t2.g) OVER (PARTITION BY t2.f) AS INT)"], + "ref": ["test.t1.b", "test.t1.c"], + "rows": 1, + "filtered": 100, + "attached_condition": "t1.c = `<subquery2>`.`CAST(SUM(t2.g) OVER (PARTITION BY t2.f) AS INT)`", + "materialized": { + "unique": 1, + "query_block": { + "select_id": 2, + "window_functions_computation": { + "sorts": { + "filesort": { + "sort_key": "t2.f" + } + }, + "temporary_table": { + "table": { + "table_name": "t2", + "access_type": "ALL", + "rows": 12, + "filtered": 100, + "attached_condition": "t2.e < 5 and t2.f > 1" + } + } + } + } + } + } + } +} +DROP TABLE t1,t2,t3; +DROP VIEW v1,v2; +# +# MDEV-16721: IN-subquery defined with the AUTO-INCREMENT column +# and used with the ZEROFILL column +# +CREATE TABLE t1 (a INT AUTO_INCREMENT PRIMARY KEY); +CREATE TABLE t2 (b INT ZEROFILL); +INSERT INTO t2 VALUES (2), (3); +SELECT * +FROM t2 +WHERE t2.b IN (SELECT MIN(t1.a) from t1); +b +DROP TABLE t1, t2; +# +# MDEV-16730: server fault caused by pushdown into the derived table +# condition that joins IN subquery and parent select +# +CREATE TABLE t1 (a INT); +INSERT INTO t1 VALUES (1), (2), (3); +SELECT * +FROM (SELECT DISTINCT * FROM t1) AS tbl +WHERE tbl.a IN +( +SELECT COUNT(t1.a) +FROM t1 +WHERE (t1.a!=1) +); +a +2 +DROP TABLE t1; +# +# MDEV-16727: failure assertion caused by the lamely saved list +# of multiple equalities +# +CREATE TABLE t1 (a varchar(1)); +INSERT INTO `t1` VALUES ('x'), ('y'), ('z'); +CREATE TABLE t2 (b varchar(1)); +INSERT INTO t2 VALUES ('x'); +CREATE TABLE t3 (c varchar(1)); +INSERT INTO t3 VALUES ('y'); +CREATE TABLE t4 (d varchar(1)); +INSERT INTO t4 VALUES ('x'), ('z'); +SELECT * FROM t1 +JOIN t2 ON (t1.a=t2.b) +LEFT JOIN t3 ON (t1.a=t3.c) +WHERE (t1.a) IN +( +SELECT t4.d +FROM t4 +ORDER BY t4.d +); +a b c +x x NULL +DROP TABLE t1,t2,t3,t4; |