set value var via execute
От | Peter Kroon |
---|---|
Тема | set value var via execute |
Дата | |
Msg-id | CAOh+DOmSUiCrgW=f-42piQhndoC=9d-kZLypTtR8Rm4HnME42A@mail.gmail.com обсуждение исходный текст |
Ответы |
Re: set value var via execute
Re: set value var via execute |
Список | pgsql-general |
Is it possible to set the value of a var via execute?
drop table if exists __test;
create unlogged table __test(
id int
);
DO $$
DECLARE
v_holder int;
v_table text = 'table';
v_record_0 text[];
v_id int;
BEGIN
execute '
insert into __test(id)
select id from '||v_table||' order by random() limit 2
';
v_id = (select id from __test limit 1);
--begin this fails------------------------------------------------------------------------------------------
v_holder = execute 'select id from '||v_table||' order by random() limit 1';
--end this fails-------------------------------------------------------------------------------------------
v_record_0 := array(
SELECT id FROM table order by random() --limit 2
);
raise notice '%', v_record_0;
END;
$$ LANGUAGE plpgsql;
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