Merge
This commit is contained in:
Igor Babaev
commit
2dc2098e59
@ -335,3 +335,110 @@ id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 ALL PRIMARY,idx NULL NULL NULL 16 Using where; Using join buffer
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1 SIMPLE t3 ref PRIMARY,idx idx 3 test.t2.v 2 Using index condition; Using where
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DROP TABLE t1,t2,t3;
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#
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# Bug #669420: MRR for Range checked for each record
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#
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CREATE TABLE t1 (
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pk int NOT NULL PRIMARY KEY,
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j int NOT NULL,
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i int NOT NULL,
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v varchar(1) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
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INDEX i (i),
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INDEX vi (v,i)
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) ENGINE=ARIA;
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INSERT INTO t1 VALUES (10,3,8,'v'),(11,3,8,'f');
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CREATE TABLE t2 (
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pk int NOT NULL PRIMARY KEY,
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j int NOT NULL,
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i int NOT NULL,
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v varchar(1) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
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INDEX i (i),
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INDEX vi (v,i)
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) ENGINE=ARIA;
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INSERT INTO t2 VALUES (10,9,3,'i'),(11,101,186,'x'),(12,0,1,'g');
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SET SESSION join_cache_level=0;
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EXPLAIN
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SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
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WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index NULL i 4 NULL 2 Using index
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1 SIMPLE t2 index i,vi vi 7 NULL 3 Using where; Using index
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1 SIMPLE t3 ALL PRIMARY,vi NULL NULL NULL 3 Range checked for each record (index map: 0x5)
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SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
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WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
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i i v pk v
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8 1 g 10 i
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8 1 g 11 x
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8 1 g 12 g
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8 3 i 10 i
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8 3 i 11 x
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8 1 g 10 i
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8 1 g 11 x
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8 1 g 12 g
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8 3 i 10 i
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8 3 i 11 x
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SET SESSION join_cache_level=1;
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EXPLAIN
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SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
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WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index NULL i 4 NULL 2 Using index
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1 SIMPLE t2 index i,vi vi 7 NULL 3 Using where; Using index; Using join buffer
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1 SIMPLE t3 ALL PRIMARY,vi NULL NULL NULL 3 Range checked for each record (index map: 0x5)
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SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
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WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
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i i v pk v
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8 3 i 10 i
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8 3 i 11 x
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8 3 i 10 i
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8 3 i 11 x
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8 1 g 10 i
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8 1 g 11 x
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8 1 g 12 g
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8 1 g 10 i
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8 1 g 11 x
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8 1 g 12 g
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SET SESSION join_cache_level=DEFAULT;
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DROP TABLE t1,t2;
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CREATE TABLE t1 (
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pk int NOT NULL PRIMARY KEY,
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j int NOT NULL,
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i int NOT NULL,
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v varchar(1) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
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INDEX i (i)
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) ENGINE=ARIA;
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INSERT INTO t1 VALUES
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(10,3,8,'v'),(11,3,8,'f'),(12,3,5,'v'),(13,2,8,'s'),(14,1,8,'a'),
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(15,0,6,'p'),(16,8,7,'z'),(17,5,2,'a'),(18,9,5,'h'),(19,5,7,'h'),
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(20,4,2,'v'),(21,2,9,'v'),(22,33,142,'b'),(23,5,3,'y'),(24,1,0,'v'),
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(25,9,3,'m'),(26,1,5,'z'),(27,3,9,'n'),(28,8,1,'d'),(29,231,107,'a');
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SET SESSION join_cache_level = 0;
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EXPLAIN
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SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t ALL i NULL NULL NULL 20
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1 SIMPLE s ALL PRIMARY,i NULL NULL NULL 20 Range checked for each record (index map: 0x3)
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SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j;
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f
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142
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142
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107
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EXPLAIN
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SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t ALL i NULL NULL NULL 20 Using temporary; Using filesort
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1 SIMPLE s ALL PRIMARY,i NULL NULL NULL 20 Range checked for each record (index map: 0x3)
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SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f;
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f
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107
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142
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EXPLAIN
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SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f LIMIT 1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE s ALL PRIMARY,i NULL NULL NULL 20 Using temporary; Using filesort
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1 SIMPLE t ALL i NULL NULL NULL 20 Using where
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SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f LIMIT 1;
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f
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107
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SET SESSION join_cache_level=DEFAULT;
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DROP TABLE t1;
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@ -51,3 +51,78 @@ EXPLAIN
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WHERE t3.v = t2.v AND t3.i < t2.i AND t3.pk > 0 AND t2.pk > 0;
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DROP TABLE t1,t2,t3;
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--echo #
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--echo # Bug #669420: MRR for Range checked for each record
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--echo #
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CREATE TABLE t1 (
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pk int NOT NULL PRIMARY KEY,
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j int NOT NULL,
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i int NOT NULL,
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v varchar(1) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
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INDEX i (i),
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INDEX vi (v,i)
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) ENGINE=ARIA;
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INSERT INTO t1 VALUES (10,3,8,'v'),(11,3,8,'f');
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CREATE TABLE t2 (
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pk int NOT NULL PRIMARY KEY,
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j int NOT NULL,
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i int NOT NULL,
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v varchar(1) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
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INDEX i (i),
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INDEX vi (v,i)
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) ENGINE=ARIA;
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INSERT INTO t2 VALUES (10,9,3,'i'),(11,101,186,'x'),(12,0,1,'g');
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SET SESSION join_cache_level=0;
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EXPLAIN
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SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
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WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
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SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
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WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
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SET SESSION join_cache_level=1;
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EXPLAIN
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SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
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WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
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SELECT t1.i, t2.i, t2.v, t3.pk, t3.v FROM t1, t2, t2 t3
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WHERE t2.i != 0 AND t3.pk >= t2.i AND t3.v >= t2.v;
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SET SESSION join_cache_level=DEFAULT;
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DROP TABLE t1,t2;
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CREATE TABLE t1 (
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pk int NOT NULL PRIMARY KEY,
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j int NOT NULL,
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i int NOT NULL,
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v varchar(1) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
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INDEX i (i)
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) ENGINE=ARIA;
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INSERT INTO t1 VALUES
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(10,3,8,'v'),(11,3,8,'f'),(12,3,5,'v'),(13,2,8,'s'),(14,1,8,'a'),
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(15,0,6,'p'),(16,8,7,'z'),(17,5,2,'a'),(18,9,5,'h'),(19,5,7,'h'),
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(20,4,2,'v'),(21,2,9,'v'),(22,33,142,'b'),(23,5,3,'y'),(24,1,0,'v'),
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(25,9,3,'m'),(26,1,5,'z'),(27,3,9,'n'),(28,8,1,'d'),(29,231,107,'a');
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SET SESSION join_cache_level = 0;
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EXPLAIN
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SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j;
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SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j;
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EXPLAIN
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SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f;
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SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f;
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EXPLAIN
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SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f LIMIT 1;
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SELECT s.i f FROM t1 t, t1 s WHERE s.i >= t.i AND s.pk < t.j GROUP BY f LIMIT 1;
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SET SESSION join_cache_level=DEFAULT;
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DROP TABLE t1;
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@ -2286,6 +2286,7 @@ int ha_maria::rnd_init(bool scan)
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int ha_maria::rnd_end()
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{
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ds_mrr.dsmrr_close();
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/* Safe to call even if we don't have started a scan */
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maria_scan_end(file);
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return 0;
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