Strange behaviour on function - Mailing list pgsql-general

From Lorusso Domenico
Subject Strange behaviour on function
Date
Msg-id CAJMpnG4byAZMOd-12Pxn7KcptJpi4MJCc-U-tS8KZNSE_6YkKg@mail.gmail.com
Whole thread Raw
Responses Re: Strange behaviour on function  (Erik Wienhold <ewie@ewie.name>)
Re: Strange behaviour on function  (Adrian Klaver <adrian.klaver@aklaver.com>)
List pgsql-general
Hello guys,
here a simple function

CREATE OR REPLACE FUNCTION bind_action(
sqlstr text,
hrec hstore)
    RETURNS text
    LANGUAGE 'plpgsql'
    COST 100
    immutable PARALLEL SAFE
AS $BODY$
declare
_sqlstr text=sqlstr;
_k text;
_debug text;
begin
_debug= '--Start' || _sqlstr;
foreach _k in array akeys(hrec) loop
_debug =_debug || format($$
hstore: %s %s
sqlStr:$$, _k,  hrec[_k]);
_sqlstr=replace(_sqlstr, ':'||_k||':', hrec[_k]);
_debug =_debug ||  _sqlstr;

end loop;

raise notice 'final %',_debug;
return _sqlstr;
end;
$BODY$;

and here a simple test
do
$$
declare
sqlstr text=':id::bignt,:surpa:,:disfa:';
hs hstore;
begin
hs['id']=789;
hs['disfa']='ssssssss';
raise notice '%',bind_action(sqlstr,hs);
end;
$$;


and it works.
But... 
When I call this function in a function called by a trigger it down't work
_debug variable becomes null, also _sqlstr becomes null...

I can't identify what is going to happens...

any idea?


thanks

--
Domenico L.

per stupire mezz'ora basta un libro di storia,
io cercai di imparare la Treccani a memoria... [F.d.A.]

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