clickhouse数据库删除数据的五种方式

##查询某表分区
ck001 :) select database,table,partition,name, bytes_on_disk  from system.parts where table='ck_test1';

┌─database─┬─table┬─partition─┬─name────┬─bytes_on_disk─┐
│ default  │ ck_test1 │ 202302    │ 202302_3_3_0 │           221 │
│ default  │ ck_test1 │ 202301    │ 202301_4_4_0 │           232 │
└──────────┴────────────────────┴───────────┴

##删除某表分区
ck001 :) alter table ck_test1 drop partition 202301;

## DELETE操作
-- 删除记录
alter table ck_table01 delete where id='11';
-- 删除分片表数据
alter table ck_table01 on cluster main_cluster where create_date>< '2023-02-02 15:00:00';

truncate table default.ck_table01;

--设置白鸥ck_table01的TTL为30分钟
create table default.ck_table01
(
    id Int64,
    name Nullable(String),
    address Nullable(String),
    create_date Date
)
ENGINE = MergeTree
PARTITION BY toYYYYMM(create_date)
ORDER BY id
TTL toDate(create_date) + toIntervalMinute(30)

systemctl stop clickhouse-server

rm -rf /opt/clickhouse/data/default/

systemctl start clickhouse-server