mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 02:46:29 +01:00
45bc7574fb
Remove usage of deprecated variable storage_engine. It was deprecated in 5.5 but it never issued a deprecation warning. Make it issue a warning in 10.5.1. Replaced with default_storage_engine.
89 lines
2.9 KiB
Text
89 lines
2.9 KiB
Text
SET @@session.default_storage_engine = 'InnoDB';
|
|
drop table if exists t1;
|
|
# Case 1. Partitioning by RANGE based on a non-stored virtual column.
|
|
CREATE TABLE t1 (
|
|
a DATE NOT NULL,
|
|
b int as (year(a))
|
|
)
|
|
PARTITION BY RANGE( b ) (
|
|
PARTITION p0 VALUES LESS THAN (2006),
|
|
PARTITION p2 VALUES LESS THAN (2008)
|
|
);
|
|
insert into t1 values ('2006-01-01',default);
|
|
insert into t1 values ('2007-01-01',default);
|
|
insert into t1 values ('2005-01-01',default);
|
|
insert into t1 (a) values ('2007-01-02');
|
|
select * from t1;
|
|
a b
|
|
2005-01-01 2005
|
|
2006-01-01 2006
|
|
2007-01-01 2007
|
|
2007-01-02 2007
|
|
select partition_name,table_rows,data_length from information_schema.partitions where table_name = 't1';
|
|
partition_name table_rows data_length
|
|
p0 1 16384
|
|
p2 3 16384
|
|
# Modify the expression of virtual column b
|
|
ALTER TABLE t1 modify b int as (year(a)-1);
|
|
select * from t1;
|
|
a b
|
|
2005-01-01 2004
|
|
2006-01-01 2005
|
|
2007-01-01 2006
|
|
2007-01-02 2006
|
|
select partition_name,table_rows,data_length from information_schema.partitions where table_name = 't1';
|
|
partition_name table_rows data_length
|
|
p0 2 16384
|
|
p2 2 16384
|
|
drop table t1;
|
|
# Case 2. Partitioning by LIST based on a stored virtual column.
|
|
CREATE TABLE t1 (a int, b int as (a % 3 ) persistent)
|
|
PARTITION BY LIST (a+1)
|
|
(PARTITION p1 VALUES IN (1), PARTITION p2 VALUES IN (2));
|
|
insert into t1 values (1,default);
|
|
select partition_name,table_rows,data_length from information_schema.partitions where table_name = 't1';
|
|
partition_name table_rows data_length
|
|
p1 0 16384
|
|
p2 1 16384
|
|
select * from t1;
|
|
a b
|
|
1 1
|
|
select * from t1;
|
|
a b
|
|
1 1
|
|
drop table t1;
|
|
# Case 3. Partitioning by HASH based on a non-stored virtual column.
|
|
CREATE TABLE t1 (
|
|
a DATE NOT NULL,
|
|
b int as (year(a))
|
|
)
|
|
PARTITION BY HASH( b % 3 ) PARTITIONS 3;
|
|
insert into t1 values ('2005-01-01',default);
|
|
insert into t1 values ('2006-01-01',default);
|
|
select * from t1;
|
|
a b
|
|
2005-01-01 2005
|
|
2006-01-01 2006
|
|
select partition_name,table_rows,data_length from information_schema.partitions where table_name = 't1';
|
|
partition_name table_rows data_length
|
|
p0 0 16384
|
|
p1 1 16384
|
|
p2 1 16384
|
|
# Modify the expression of virtual column b
|
|
ALTER TABLE t1 modify b int as (year(a)-1);
|
|
select * from t1;
|
|
a b
|
|
2005-01-01 2004
|
|
2006-01-01 2005
|
|
select partition_name,table_rows,data_length from information_schema.partitions where table_name = 't1';
|
|
partition_name table_rows data_length
|
|
p0 1 16384
|
|
p1 1 16384
|
|
p2 0 16384
|
|
drop table t1;
|
|
create table t1 (a int, b datetime as (now())) partition by hash(b+1) partitions 3;
|
|
ERROR HY000: Constant, random or timezone-dependent expressions in (sub)partitioning function are not allowed
|
|
create table t1 (a int, b varchar(100) as (user())) partition by hash(b+1) partitions 3;
|
|
ERROR HY000: Constant, random or timezone-dependent expressions in (sub)partitioning function are not allowed
|
|
create table t1 (a int, b double as (rand())) partition by hash(b+1) partitions 3;
|
|
ERROR HY000: Constant, random or timezone-dependent expressions in (sub)partitioning function are not allowed
|