postgre 建立分割槽表

pg 建立分割槽表

1.建表

create table  "exchange_detail"

("id" int8 primary key,
"exchange_type" int2,
"exchange_text" varchar(255)
,"detail_user" int8,
"create_time" timestamp(6));
comment on column "public"
."exchange_detail"
."id" is '置換記錄id'
;comment on column "public"
."exchange_detail"
."exchange_type" is '置換型別'
;comment on column "public"
."exchange_detail"
."exchange_text" is '置換描述'
;comment on column "public"
."exchange_detail"
."detail_user" is '置換使用者'
;comment on column "public"
."exchange_detail"
."create_time" is '建立時間'
;

create table exchange_detail01

(check (extract(month from  create_time) = 1)
)inherits (exchange_detail)
;

alter table exchange_detail01 add primary key (id)

;

create index exchange_detail01_create_time on exchange_detail01(create_time)

;

create or replace function  exchange_detail_trigger(

) returns  trigger as $$
beginif(
extract(month from  new .create_time) = 1 
) then
insert into exchange_detail01
values
(new .*)
;elseif
(extract(month from  new .create_time) = 2
) then
insert into exchange_detail02
values
(new .*)
;elseif
(extract(month from  new .create_time) = 3
) then
insert into exchange_detail03
values
(new .*)
;elseif
(extract(month from  new .create_time) = 4
) then
insert into exchange_detail04
values
(new .*)
;elseif
(extract(month from  new .create_time) = 5
)then
insert into exchange_detail05
values
(new .*)
;elseif
(extract(month from  new .create_time) = 6
)then
insert into exchange_detail06
values
(new .*)
;elseif
(extract(month from  new .create_time) = 7
)then
insert into exchange_detail07
values
(new .*)
;elseif
(extract(month from  new .create_time) = 8
)then
insert into exchange_detail08
values
(new .*)
;elseif
(extract(month from  new .create_time) = 9
)then
insert into exchange_detail09
values
(new .*)
;elseif
(extract(month from  new .create_time) = 10
)then
insert into exchange_detail10
values
(new .*)
;elseif
(extract(month from  new .create_time) = 11
)then
insert into exchange_detail11
values
(new .*)
;elseif
(extract(month from  new .create_time) = 12
)then
insert into exchange_detail12
values
(new .*)
;else
raise exception 'date out of range!'
;endif;
return null ;
end; $$ language plpgsql;

create trigger exchange_detail_trigger before insert on exchange_detail

for each row
execute procedure exchange_detail_trigger(
);

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