PostgreSQL 分区表

CREATE TABLE database.ad_hourly_report (
id bigserial NOT NULL, -- 自增ID
settled_time timestamp NOT NULL, -- 日期时间
account_id int4 NOT NULL, -- 广告主账号
campaign_id int4 NOT NULL, -- 广告计划
adgroup_id int4 NOT NULL, -- 广告单元
ad_id int4 NOT NULL, -- 广告创意
view_count int4 NOT NULL DEFAULT 0, -- 曝光量
click_count int4 NOT NULL DEFAULT 0, -- 点击量
"cost" int8 NOT NULL DEFAULT 0, -- 花费
source_ad_id int8 NULL, -- 对应平台广告创意
source_adgroup_id int8 NULL, -- 对应平台广告单元
source_campaign_id int8 NULL, -- 对应平台广告计划
source_account_id int8 NULL, -- 对应平台广告主账号
insert_time timestamp DEFAULT CURRENT_TIMESTAMP
) PARTITION BY RANGE(settled_time);
COMMENT ON TABLE database.ad_hourly_report IS '小时报告表';


--创建表分区
create table ad_hourly_report_202112 partition of ad_hourly_report for values from (minvalue) to ('2021-12-31');
create table ad_hourly_report_202201 partition of ad_hourly_report for values from ('2022-01-01') to ('2022-01-31');
create table ad_hourly_report_202202 partition of ad_hourly_report for values from ('2022-02-01') to ('2022-02-28');


--查询表分区
SELECT

nmsp_parent.nspname AS parent_schema ,

parent.relname AS parent ,

nmsp_child.nspname AS child ,

child.relname AS child_schema

FROM

pg_inherits JOIN pg_class parent

ON pg_inherits.inhparent = parent.oid JOIN pg_class child

ON pg_inherits.inhrelid = child.oid JOIN pg_namespace nmsp_parent

ON nmsp_parent.oid = parent.relnamespace JOIN pg_namespace nmsp_child

ON nmsp_child.oid = child.relnamespace

WHERE

parent.relname = 'ad_hourly_report';