Report region runs very slow, but its sql runs fast

Question

We have a page with a report region Type :SQL Query (plsq function body returning sql query) which runs very slow, pegging the tach on our db box for almost a minute before returning report rows. However, if we run the generated sql from sql plus, it returns all the rows in under 10 seconds with nary a blip on the box. Any idas how what could be causing this or how to debug?
Thanks,
Steve

Answer 1

OK, here is the bad boy, shortly after our code that returns the data.
declare
rc__ number;
simple_list__ owa_util.vc_arr;
complex_list__ owa_util.vc_arr;
begin
owa.init_cgi_env(:n__,:nm__,:v__);
htp.HTBUF_LEN := 63;
null;
null;
simple_list__(1) := 'sys.%';
simple_list__(2) := 'dbms\_%';
simple_list__(3) := 'utl\_%';
simple_list__(4) := 'owa\_%';
simple_list__(5) := 'owa.%';
simple_list__(6) := 'htp.%';
simple_list__(7) := 'htf.%';
simple_list__(8) := 'wpg_docload.%';
if ((owa_match.match_pattern(p_string =>
'f'
/* */,p_simple_pattern =>
simple_list__
,p_complex_pattern =>
complex_list__
,p_use_special_chars =>
false)))
then
rc__ := 2;
else
null;
null;
f(p=>:p);
if (wpg_docload.is_file_download) then
rc__ := 1;
wpg_docload.get_download_file(:doc_info);
null;
null;
null;
commit;
else
rc__ := 0;
null;
null;
null;
commit;
owa.get_page(:data__,:ndata__);
end if;
end if;
:rc__ := rc__;
end;
call count cpu elapsed disk query current rows
Parse 0 0.00 0.00 0 0 0 0
Execute 1 25.53 26.59 4492 20992 60 1
Fetch 0 0.00 0.00 0 0 0 0
total 1 25.53 26.59 4492 20992 60 1