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MDEV-10765: Wrong result - query does not retrieve values from default partition on a table partitioned by list columns

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Partial matches should be treat as not exact one.
This commit is contained in:
Oleksandr Byelkin 2016-09-08 19:43:09 +02:00
parent 2c52493d14
commit b22ed66c6b
3 changed files with 108 additions and 0 deletions
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55
mysql-test/r/partition_default.result
View file

@ -1149,3 +1149,58 @@ t1 CREATE TABLE `t1` (
PARTITION p2 VALUES IN ((1,4),(2,5),(3,6)) ENGINE = MyISAM,
PARTITION p1 VALUES IN ((1,1),(0,0)) ENGINE = MyISAM) */
drop table t1;
#
# MDEV-10765: Wrong result - query does not retrieve values from
# default partition on a table partitioned by list columns
#
create table t1 (i int, j int) partition by list columns(i,j) (partition p1 values in ((10,10)), partition p2 default);
insert into t1 values (10,1);
select * from t1 where i = 10;
i j
10 1
explain partitions
select * from t1 where i = 10;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1,p2 system NULL NULL NULL NULL 1
select * from t1 where i = 10 and j=1;
i j
10 1
explain partitions
select * from t1 where i = 10 and j=1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2 system NULL NULL NULL NULL 1
insert into t1 values (10,10);
select * from t1 where i = 10 and j=10;
i j
10 10
explain partitions
select * from t1 where i = 10 and j=10;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1 system NULL NULL NULL NULL 1
drop table t1;
create table t1
(
a int not null,
b int not null,
c int
)
partition by list columns(a,b)
(
partition p1 values in ((10,10)),
partition p2 values in ((10,20)),
partition p3 values in ((10,30)),
partition p4 values in ((10,40)),
partition p5 values in ((10,50))
);
insert into t1 values
(10,10,1234),
(10,20,1234),
(10,30,1234),
(10,40,1234),
(10,50,1234);
explain partitions
select * from t1
where a>=10 and (a <=10 and b <=30);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1,p2,p3 ALL NULL NULL NULL NULL 3 Using where
drop table t1;

47
mysql-test/t/partition_default.test
View file

@ -453,3 +453,50 @@ create table t1 (a int, b int)
show create table t1;
drop table t1;
--echo #
--echo # MDEV-10765: Wrong result - query does not retrieve values from
--echo # default partition on a table partitioned by list columns
--echo #
create table t1 (i int, j int) partition by list columns(i,j) (partition p1 values in ((10,10)), partition p2 default);
insert into t1 values (10,1);
select * from t1 where i = 10;
explain partitions
select * from t1 where i = 10;
select * from t1 where i = 10 and j=1;
explain partitions
select * from t1 where i = 10 and j=1;
insert into t1 values (10,10);
select * from t1 where i = 10 and j=10;
explain partitions
select * from t1 where i = 10 and j=10;
drop table t1;
create table t1
(
a int not null,
b int not null,
c int
)
partition by list columns(a,b)
(
partition p1 values in ((10,10)),
partition p2 values in ((10,20)),
partition p3 values in ((10,30)),
partition p4 values in ((10,40)),
partition p5 values in ((10,50))
);
insert into t1 values
(10,10,1234),
(10,20,1234),
(10,30,1234),
(10,40,1234),
(10,50,1234);
explain partitions
select * from t1
where a>=10 and (a <=10 and b <=30);
drop table t1;

6
sql/sql_partition.cc
View file

@ -7723,6 +7723,7 @@ int get_part_iter_for_interval_cols_via_map(partition_info *part_info,
bool can_match_multiple_values;
uint32 nparts;
get_col_endpoint_func UNINIT_VAR(get_col_endpoint);
uint full_length= 0;
DBUG_ENTER("get_part_iter_for_interval_cols_via_map");
if (part_info->part_type == RANGE_PARTITION)
@ -7740,9 +7741,14 @@ int get_part_iter_for_interval_cols_via_map(partition_info *part_info,
else
assert(0);
for (uint32 i= 0; i < part_info->num_columns; i++)
full_length+= store_length_array[i];
can_match_multiple_values= ((flags &
(NO_MIN_RANGE | NO_MAX_RANGE | NEAR_MIN |
NEAR_MAX)) ||
(min_len != max_len) ||
(min_len != full_length) ||
memcmp(min_value, max_value, min_len));
DBUG_ASSERT(can_match_multiple_values || (flags & EQ_RANGE) || flags == 0);
if (can_match_multiple_values && part_info->has_default_partititon())