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This commit is contained in:
Mattias Jonsson 2010-09-10 11:50:38 +02:00
commit 2ac69d648a
9 changed files with 357 additions and 301 deletions
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2
mysql-test/r/partition.result
View file

@ -1382,7 +1382,7 @@ NULL
2
explain partitions select * from t1 where a is null or a < 0 or a > 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pn,p2 ALL NULL NULL NULL NULL 4 Using where
1 SIMPLE t1 pn,p2 ALL NULL NULL NULL NULL 2 Using where
drop table t1;
CREATE TABLE t1 (id INT NOT NULL PRIMARY KEY, name VARCHAR(20))
ENGINE=MyISAM DEFAULT CHARSET=latin1

12
mysql-test/r/partition_hash.result
View file

@ -69,25 +69,25 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
explain partitions select * from t1 where a is null or (a >= 5 and a <= 7);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p2,p3 ALL NULL NULL NULL NULL 9 Using where
1 SIMPLE t1 p0,p2,p3 ALL NULL NULL NULL NULL 7 Using where
explain partitions select * from t1 where a is null;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 9 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 3 Using where
explain partitions select * from t1 where a is not null;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
explain partitions select * from t1 where a >= 1 and a < 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL 9 Using where
1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL 5 Using where
explain partitions select * from t1 where a >= 3 and a <= 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1,p2 ALL NULL NULL NULL NULL 9 Using where
1 SIMPLE t1 p1,p2 ALL NULL NULL NULL NULL 4 Using where
explain partitions select * from t1 where a > 2 and a < 4;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1 ALL NULL NULL NULL NULL 9 Using where
1 SIMPLE t1 p1 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 where a > 3 and a <= 6;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2,p3 ALL NULL NULL NULL NULL 9 Using where
1 SIMPLE t1 p2,p3 ALL NULL NULL NULL NULL 4 Using where
explain partitions select * from t1 where a > 5;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where

18
mysql-test/r/partition_innodb.result
View file

@ -22,31 +22,31 @@ insert INTO t1 VALUES (110);
ERROR HY000: Table has no partition for value 110
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 90;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL 0 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 90;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL 0 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 90;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL 0 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 89;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p90 ALL NULL NULL NULL NULL 7 Using where
1 SIMPLE t1 p90 ALL NULL NULL NULL NULL 3 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 89;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p90 ALL NULL NULL NULL NULL 7 Using where
1 SIMPLE t1 p90 ALL NULL NULL NULL NULL 3 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 89;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL 0 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 100;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL 0 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 100;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL 0 Using where
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 100;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL 0 Using where
DROP TABLE t1;
#
# Bug#50104: Partitioned table with just 1 partion works with fk

508
mysql-test/r/partition_pruning.result
View file

File diff suppressed because it is too large Load diff

12
mysql-test/r/partition_range.result
View file

@ -73,13 +73,13 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pnull system NULL NULL NULL NULL 1
explain partitions select * from t1 where a >= 0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL 3 Using where
1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 where a < 0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
explain partitions select * from t1 where a <= 0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pnull,p0 ALL NULL NULL NULL NULL 3 Using where
1 SIMPLE t1 pnull,p0 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 where a > 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
@ -112,16 +112,16 @@ select * from t1 where a > 1;
a b
explain partitions select * from t1 where a is null;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 6 Using where
1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 where a >= 0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0_p0sp0,p0_p0sp1,p1_p1sp0,p1_p1sp1 ALL NULL NULL NULL NULL 6 Using where
1 SIMPLE t1 p0_p0sp0,p0_p0sp1,p1_p1sp0,p1_p1sp1 ALL NULL NULL NULL NULL 4 Using where
explain partitions select * from t1 where a < 0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 6 Using where
1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 where a <= 0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1,p0_p0sp0,p0_p0sp1 ALL NULL NULL NULL NULL 6 Using where
1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1,p0_p0sp0,p0_p0sp1 ALL NULL NULL NULL NULL 4 Using where
explain partitions select * from t1 where a > 1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables

36
mysql-test/suite/parts/r/partition_alter3_innodb.result
View file

@ -141,7 +141,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL 7 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -165,7 +165,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 5 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -190,7 +190,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 3 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -226,7 +226,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL 3 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -248,7 +248,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL 4 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -269,7 +269,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 4 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -289,7 +289,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 5 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -308,7 +308,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL 7 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -326,7 +326,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 10 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -452,7 +452,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 7 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -476,7 +476,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 5 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -504,7 +504,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL 3 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -538,7 +538,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 4 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -563,7 +563,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 3 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -587,7 +587,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL 23 Using where
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL 10 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -610,7 +610,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 5 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -632,7 +632,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 7 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -653,7 +653,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 10 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1

36
mysql-test/suite/parts/r/partition_alter3_myisam.result
View file

@ -155,7 +155,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL 7 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -187,7 +187,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 5 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -228,7 +228,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 3 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -278,7 +278,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL 3 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -312,7 +312,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL 4 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -343,7 +343,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 4 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -371,7 +371,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 5 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -396,7 +396,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part1 ALL NULL NULL NULL NULL 7 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -418,7 +418,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 WHERE f_date = '1000-02-10';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 10 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -552,7 +552,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 7 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -584,7 +584,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 5 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -628,7 +628,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p6 ALL NULL NULL NULL NULL 3 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -676,7 +676,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 4 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -713,7 +713,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 3 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -747,7 +747,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL 10 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -778,7 +778,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 5 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -806,7 +806,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 part7 ALL NULL NULL NULL NULL 7 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1
@ -831,7 +831,7 @@ t1.frm
t1.par
EXPLAIN PARTITIONS SELECT COUNT(*) <> 1 FROM t1 WHERE f_int1 = 3;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 20 Using where
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 10 Using where
# check read single success: 1
# check read all success: 1
# check read row by row success: 1

24
mysql-test/t/partition_pruning.test
View file

@ -8,6 +8,30 @@
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
--enable_warnings
--echo #
--echo # Bug#53806: Wrong estimates for range query in partitioned MyISAM table
--echo # Bug#46754: 'rows' field doesn't reflect partition pruning
--echo #
CREATE TABLE t1 (a INT PRIMARY KEY)
PARTITION BY RANGE (a) (
PARTITION p0 VALUES LESS THAN (1),
PARTITION p1 VALUES LESS THAN (2),
PARTITION p2 VALUES LESS THAN (3),
PARTITION p3 VALUES LESS THAN (4),
PARTITION p4 VALUES LESS THAN (5),
PARTITION p5 VALUES LESS THAN (6),
PARTITION max VALUES LESS THAN MAXVALUE);
INSERT INTO t1 VALUES (-1),(0),(1),(2),(3),(4),(5),(6),(7),(8);
--replace_column 1 # 2 # 3 # 4 # 5 # 6 # 7 # 8 # 9 # 11 #
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1;
--replace_column 1 # 2 # 3 # 4 # 5 # 6 # 7 # 8 # 9 # 11 #
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 7;
--replace_column 1 # 2 # 3 # 4 # 5 # 6 # 7 # 8 # 9 # 11 #
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1;
DROP TABLE t1;
--echo #
--echo # Bug#49742: Partition Pruning not working correctly for RANGE
--echo #

10
sql/sql_select.cc
View file

@ -16662,7 +16662,15 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order,
if (tab->select && tab->select->quick)
examined_rows= tab->select->quick->records;
else if (tab->type == JT_NEXT || tab->type == JT_ALL)
examined_rows= tab->limit ? tab->limit : tab->table->file->records();
{
if (tab->limit)
examined_rows= tab->limit;
else
{
tab->table->file->info(HA_STATUS_VARIABLE);
examined_rows= tab->table->file->stats.records;
}
}
else
examined_rows=(ha_rows)join->best_positions[i].records_read;