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MDEV-21195 INSERT chooses wrong partition for RANGE partitioning by DECIMAL column

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Use FLOOR rounding for DECIMAL_RESULT item_expr in partition function.
This commit is contained in:
Aleksey Midenkov
2020-02-02 15:13:29 +03:00
parent 74deeaee34
commit b0fa308086
5 changed files with 116 additions and 6 deletions
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44
mysql-test/main/partition_range.result
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@ -1009,3 +1009,47 @@ select * from t1 partition (p1);
d
2000-01-01 00:00:01.000000
DROP TABLE t1, t2;
#
# MDEV-21195 INSERT chooses wrong partition for RANGE partitioning by DECIMAL column
#
create or replace table t (
d decimal(2,1)) partition by range (d)
(partition p1 values less than (10));
insert into t values (9.9);
create or replace table t (
d decimal(2,1)) partition by range (d)
(partition p1 values less than (10),
partition p2 values less than (20));
insert into t values (9.9);
select * from t partition (p1);
d
9.9
select * from t partition (p2);
d
create or replace table t (
d decimal(2,1)) partition by range (d)
(partition p1 values less than (-3));
insert into t values (-3.3);
create or replace table t (
d decimal(2,1)) partition by range (d+1)
(partition p1 values less than (10),
partition p2 values less than (20));
insert into t values (8.9);
select * from t partition (p1);
d
8.9
select * from t partition (p2);
d
set time_zone='+00:00';
create or replace table t (
d timestamp(1)) partition by range (unix_timestamp(d))
(partition p1 values less than (1577836800),
partition p2 values less than (2000000000));
insert into t values (from_unixtime(1577836799.9));
select * from t partition (p1);
d
2019-12-31 23:59:59.9
select * from t partition (p2);
d
set time_zone=default;
drop table t;