postgresql使用觸發器進行分表操作

1.首先準備測試的父表:

2.建立子表:

create table info_2017(

check ( year = '2017' ) 
) inherits (info);
create table info_2018(
check ( year = '2018' ) 
) inherits (info);

create index info_2017_index on info_2017(year);

create index info_2018_index on info_2018(year);

create or replace function info_trigger()                      

returns trigger as $$ 
begin 
if ( new.year = '2017') then 
insert into info_2017 values (new.*); 
elsif ( new.year = '2018' ) then 
insert into info_2018 values (new.*); 
else 
raise exception 'date out of range. fix the tbl_partition_insert_trigger() function!'; 
end if; 
return null; 
end; 
$$ 
language plpgsql;
create trigger my_info_trigger
before insert on info
for each row execute procedure info_trigger();

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