Use an eval function to return table - function

Question

I am interested in learning how to use dynamic functions in Postgres. I basically need a dynamic function that will spit out a table or a subtable (a few chosen columns from an existing table).
I've created the following eval() function, but it is not working as I'd like it to.
I would like my function to return the result of a query that is introduced as a string within the function. The function currently returns only the first value from the first column (enrich_d_dkj_p_k27ac). It seems like I should change my returns from text to something else?
create or replace function eval() returns text
as
$body$
declare
result text;
begin
execute 'select enrich_d_dkj_p_k27ac,enrich_lr_dkj_p_k27ac,enrich_r_dkj_p_k27ac
from dkj_p_k27ac' into result;
return result;
end;
$body$
language plpgsql;
SELECT eval();
Result is:
eval text
2.4
But this is basically only the very first value of the first column - I will need the entire table to appear - or in other words - the result of the indicated SELECT.

Answer 1

It would work like this (but it's useless):
create or replace function eval()
RETURNS TABLE (enrich_d_dkj_p_k27ac text -- replace with actual column types
, enrich_lr_dkj_p_k27ac text
, enrich_r_dkj_p_k27ac text) AS
$func$
begin
RETURN QUERY EXECUTE
'select enrich_d_dkj_p_k27ac,enrich_lr_dkj_p_k27ac,enrich_r_dkj_p_k27ac
from dkj_p_k27ac';
end
$func$ language plpgsql;
Call:
SELECT * FROM eval();
You do not need the eval() function, just execute the statement directly:
select enrich_d_dkj_p_k27ac,enrich_lr_dkj_p_k27ac,enrich_r_dkj_p_k27ac
from dkj_p_k27ac;
The dynamic call cannot solve your underlying problem:
How to execute a string result of a stored procedure in postgres