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mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00

5.3 merge

This commit is contained in:
Sergei Golubchik
2012-01-13 15:50:02 +01:00
750 changed files with 17402 additions and 7153 deletions

View File

@ -316,7 +316,7 @@ INSERT INTO t1 VALUES (1);
INSERT INTO t2 VALUES (1);
DELETE IGNORE FROM t1 WHERE i = 1;
Warnings:
Error 1451 Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`i`) REFERENCES `t1` (`i`) ON DELETE NO ACTION)
Warning 1451 Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`i`) REFERENCES `t1` (`i`) ON DELETE NO ACTION)
SELECT * FROM t1, t2;
i i
1 1
@ -1430,9 +1430,9 @@ DROP TABLE t1;
create table t1 (a bit(1) not null,b int) engine=myisam;
create table t2 (c int) engine=innodb;
set @save_optimizer_switch=@@optimizer_switch;
set @@optimizer_switch='partial_match_rowid_merge=off,partial_match_table_scan=off';
set @@optimizer_switch='in_to_exists=on,materialization=off';
explain
select b from t1 where a not in (select b from t1,t2 group by a) group by a;
select b from t1 where a not in (select max(b) from t1,t2 group by a) group by a;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 DEPENDENT SUBQUERY t1 system NULL NULL NULL NULL 0 const row not found
@ -2685,11 +2685,54 @@ rows 3
Extra Using index
DROP TABLE t1;
#
# Bug#56862 Execution of a query that uses index merge returns a wrong result
#
CREATE TABLE t1 (
pk int NOT NULL AUTO_INCREMENT PRIMARY KEY,
a int,
b int,
INDEX idx(a))
ENGINE=INNODB;
INSERT INTO t1(a,b) VALUES
(11, 1100), (2, 200), (1, 100), (14, 1400), (5, 500),
(3, 300), (17, 1700), (4, 400), (12, 1200), (8, 800),
(6, 600), (18, 1800), (9, 900), (10, 1000), (7, 700),
(13, 1300), (15, 1500), (19, 1900), (16, 1600), (20, 2000);
INSERT INTO t1(a,b) SELECT a+20, b+2000 FROM t1;
INSERT INTO t1(a,b) SELECT a+40, b+4000 FROM t1;
INSERT INTO t1(a,b) SELECT a+80, b+8000 FROM t1;
INSERT INTO t1(a,b) SELECT a,b FROM t1;
INSERT INTO t1(a,b) SELECT a,b FROM t1;
INSERT INTO t1(a,b) SELECT a,b FROM t1;
INSERT INTO t1(a,b) SELECT a,b FROM t1;
INSERT INTO t1(a,b) SELECT a,b FROM t1;
INSERT INTO t1(a,b) SELECT a,b FROM t1;
INSERT INTO t1(a,b) SELECT a,b FROM t1;
INSERT INTO t1(a,b) SELECT a,b FROM t1;
INSERT INTO t1 VALUES (1000000, 0, 0);
SET SESSION sort_buffer_size = 1024*36;
EXPLAIN
SELECT COUNT(*) FROM
(SELECT * FROM t1 FORCE INDEX (idx,PRIMARY)
WHERE a BETWEEN 2 AND 7 OR pk=1000000) AS t;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index_merge PRIMARY,idx idx,PRIMARY 5,4 NULL 1536 Using sort_union(idx,PRIMARY); Using where
SELECT COUNT(*) FROM
(SELECT * FROM t1 FORCE INDEX (idx,PRIMARY)
WHERE a BETWEEN 2 AND 7 OR pk=1000000) AS t;
COUNT(*)
1537
SET SESSION sort_buffer_size = DEFAULT;
DROP TABLE t1;
#
# ALTER TABLE IGNORE didn't ignore duplicates for unique add index
#
create table t1 (a int primary key, b int) engine = innodb;
insert into t1 values (1,1),(2,1);
alter ignore table t1 add unique `main` (b);
select * from t1;
a b
1 1
drop table t1;
End of 5.1 tests
#
@ -2737,8 +2780,7 @@ SELECT COUNT(*) FROM
(SELECT * FROM t1 FORCE INDEX (idx,PRIMARY)
WHERE a BETWEEN 2 AND 7 OR pk=1000000) AS t;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 1536
2 DERIVED t1 index_merge PRIMARY,idx idx,PRIMARY 5,4 NULL 1536 Using sort_union(idx,PRIMARY); Using where
1 SIMPLE t1 index_merge PRIMARY,idx idx,PRIMARY 5,4 NULL 1536 Using sort_union(idx,PRIMARY); Using where
SELECT COUNT(*) FROM
(SELECT * FROM t1 FORCE INDEX (idx,PRIMARY)
WHERE a BETWEEN 2 AND 7 OR pk=1000000) AS t;