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Bug # 17173 - Partitions: less than search fails

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Bug # 17894 - Comparison with "less than" operator fails with range partition

The problem here was that on queries such as < 3, the range given is NULL < n < 3.
The null part works correctly where the null value is stored in rec[0] and the
field is marked as being null.  However, when the 3 is processed, the 3 is places
on rec[0] but the null flag is left uncleared.

partition_range.result:
  Results block for bug #17894
partition_range.test:
  Test block for bug #17894
partition_list.result:
  Results block for bug #17173
partition_list.test:
  Test block for bug #17173
opt_range.cc:
  call set_notnull to clear any null flag that may have been set


sql/opt_range.cc:
  call set_notnull to clear any null flag that may have been set
mysql-test/t/partition_list.test:
  Test block for bug #17173
mysql-test/r/partition_list.result:
  Results block for bug #17173
mysql-test/t/partition_range.test:
  Test block for bug #17894
mysql-test/r/partition_range.result:
  Results block for bug #17894
This commit is contained in:
unknown
2006-03-13 14:50:16 +01:00
parent 4487b8538f
commit 0c63aee7f9
5 changed files with 79 additions and 0 deletions
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11
mysql-test/r/partition_list.result
View File

@ -180,3 +180,14 @@ primary key(a,b))
partition by list (a)
(partition x1 values in (1,2,9,4) tablespace ts1);
drop table t1;
CREATE TABLE t1 (s1 int) PARTITION BY LIST (s1)
(PARTITION p1 VALUES IN (1),
PARTITION p2 VALUES IN (2),
PARTITION p3 VALUES IN (3),
PARTITION p4 VALUES IN (4),
PARTITION p5 VALUES IN (5));
INSERT INTO t1 VALUES (1), (2), (3), (4), (5);
SELECT COUNT(*) FROM t1 WHERE s1 < 3;
COUNT(*)
2
DROP TABLE t1;

26
mysql-test/r/partition_range.result
View File

@ -337,3 +337,29 @@ a b c
1 1 1
4 1 1
drop table t1;
CREATE TABLE t1 (c1 int default NULL, c2 varchar(30) default NULL,
c3 date default NULL) engine=myisam
PARTITION BY RANGE (year(c3)) (PARTITION p0 VALUES LESS THAN (1995),
PARTITION p1 VALUES LESS THAN (1996) , PARTITION p2 VALUES LESS THAN (1997) ,
PARTITION p3 VALUES LESS THAN (1998) , PARTITION p4 VALUES LESS THAN (1999) ,
PARTITION p5 VALUES LESS THAN (2000) , PARTITION p6 VALUES LESS THAN (2001) ,
PARTITION p7 VALUES LESS THAN (2002) , PARTITION p8 VALUES LESS THAN (2003) ,
PARTITION p9 VALUES LESS THAN (2004) , PARTITION p10 VALUES LESS THAN (2010),
PARTITION p11 VALUES LESS THAN MAXVALUE );
INSERT INTO t1 VALUES (1, 'testing partitions', '1995-07-17'),
(3, 'testing partitions','1995-07-31'),
(5, 'testing partitions','1995-08-13'),
(7, 'testing partitions','1995-08-26'),
(9, 'testing partitions','1995-09-09'),
(0, 'testing partitions','2000-07-10'),
(2, 'testing partitions','2000-07-23'),
(4, 'testing partitions','2000-08-05'),
(6, 'testing partitions','2000-08-19'),
(8, 'testing partitions','2000-09-01');
SELECT COUNT(*) FROM t1 WHERE c3 BETWEEN '1996-12-31' AND '2000-12-31';
COUNT(*)
5
SELECT COUNT(*) FROM t1 WHERE c3 < '2000-12-31';
COUNT(*)
10
DROP TABLE t1;

14
mysql-test/t/partition_list.test
View File

@ -110,3 +110,17 @@ partition by list (a)
(partition x1 values in (1,2,9,4) tablespace ts1);
drop table t1;
#
#Bug #17173 Partitions: less-than search fails
#
CREATE TABLE t1 (s1 int) PARTITION BY LIST (s1)
(PARTITION p1 VALUES IN (1),
PARTITION p2 VALUES IN (2),
PARTITION p3 VALUES IN (3),
PARTITION p4 VALUES IN (4),
PARTITION p5 VALUES IN (5));
INSERT INTO t1 VALUES (1), (2), (3), (4), (5);
SELECT COUNT(*) FROM t1 WHERE s1 < 3;
DROP TABLE t1;

27
mysql-test/t/partition_range.test
View File

@ -361,3 +361,30 @@ subpartition by hash (a+b)
SELECT * from t1;
drop table t1;
#
# Bug #17894 Comparison with "less than" operator fails with Range partition
#
CREATE TABLE t1 (c1 int default NULL, c2 varchar(30) default NULL,
c3 date default NULL) engine=myisam
PARTITION BY RANGE (year(c3)) (PARTITION p0 VALUES LESS THAN (1995),
PARTITION p1 VALUES LESS THAN (1996) , PARTITION p2 VALUES LESS THAN (1997) ,
PARTITION p3 VALUES LESS THAN (1998) , PARTITION p4 VALUES LESS THAN (1999) ,
PARTITION p5 VALUES LESS THAN (2000) , PARTITION p6 VALUES LESS THAN (2001) ,
PARTITION p7 VALUES LESS THAN (2002) , PARTITION p8 VALUES LESS THAN (2003) ,
PARTITION p9 VALUES LESS THAN (2004) , PARTITION p10 VALUES LESS THAN (2010),
PARTITION p11 VALUES LESS THAN MAXVALUE );
INSERT INTO t1 VALUES (1, 'testing partitions', '1995-07-17'),
(3, 'testing partitions','1995-07-31'),
(5, 'testing partitions','1995-08-13'),
(7, 'testing partitions','1995-08-26'),
(9, 'testing partitions','1995-09-09'),
(0, 'testing partitions','2000-07-10'),
(2, 'testing partitions','2000-07-23'),
(4, 'testing partitions','2000-08-05'),
(6, 'testing partitions','2000-08-19'),
(8, 'testing partitions','2000-09-01');
SELECT COUNT(*) FROM t1 WHERE c3 BETWEEN '1996-12-31' AND '2000-12-31';
SELECT COUNT(*) FROM t1 WHERE c3 < '2000-12-31';
DROP TABLE t1;

1
sql/opt_range.cc
View File

@ -2430,6 +2430,7 @@ void store_key_image_to_rec(Field *field, char *ptr, uint len)
field->set_null();
return;
}
field->set_notnull();
ptr++;
}
field->set_key_image(ptr, len);