Table ko should used to pass parameters to crtKAIVE() function.
ko has always single row.
I tried
CREATE or replace FUNCTION public.crtKAIVE(
_doktyybid text default 'GVY'
)
RETURNS TABLE (
id integer
)
AS $f_crkaive$
select 1
$f_crkaive$ LANGUAGE sql STABLE;
create temp table ko ( doktyyp text ) on commit drop;
insert into ko values ('G');
select * from ko, crtkaive(ko.doktyyp)
but got error
ERROR: function _expression_ in FROM cannot refer to other relations of same query level
How to fix this so that ko can used to pass parameters to crtkaive ?
Posted also in
http://stackoverflow.com/questions/37231624/how-to-use-table-row-values-as-function-parameters
Upgrade your version and make use of the LATERAL feature.
Use a CTE and move the function call to the select list - then explode the result in the main query.
Basically:
WITH func_cte AS (
SELECT func_call(tbl)
FROM tbl
)
SELECT (func_call).*
FROM func_cte;
The parens are required to make the parser see func_call as a column name instead of a table name.
David J.
