Re: function call error - Mailing list pgsql-general
| From | Vidya |
|---|---|
| Subject | Re: function call error |
| Date | |
| Msg-id | 20050510072356.77669.qmail@web54302.mail.yahoo.com Whole thread Raw |
| In response to | Re: function call error ("Sim Zacks" <sim@compulab.co.il>) |
| Responses |
Re: function call error
|
| List | pgsql-general |
Sim,
Thanks for your help !
I changed the array_append(array,val) into select array_append(array,val),
when I ran the function it says
SampleDB=# select getmatch(array[2]);
ERROR: SELECT query has no destination for result data
HINT: If you want to discard the results, use PERFORM instead.
tried this ,
select array_append(temp,loop_id) into result;
and a call to function as select * from getmatch([2]);
the function call is just hanging and not returning . after I press cntrl+c . the error is
SampleDB=# select * from getmatch(array[2]);
Cancel request sent
ERROR: canceling query due to user request
CONTEXT: SQL statement "SELECT array_append( $1 , $2 )"
PL/pgSQL function "getmatch" line 9 at select into variables
Cancel request sent
ERROR: canceling query due to user request
CONTEXT: SQL statement "SELECT array_append( $1 , $2 )"
PL/pgSQL function "getmatch" line 9 at select into variables
any help how to resolve this , like what mistake am I doing ?
Thanks
Vidya
Sim Zacks <sim@compulab.co.il> wrote:
Vidya,
Array_append is a function and is called - select array_append(array,val).
You left out the select.
Sim
"Vidya" <sivaramanvidhya@yahoo.com> wrote in message news:20050509122049.62500.qmail@web54301.mail.yahoo.com...HiI have the following functions , the functions are created but when it is invoked it errors out /
SampleDB=# create or replace function getmatch(anyarray) returns anyarray as $$
SampleDB$# declare
SampleDB$# sys_cursor cursor(key integer) is select sys_id from subsystems wher
sys_id = key;
SampleDB$# result integer[];
SampleDB$# loop_id integer;
SampleDB$# begin
SampleDB$# open sys_cursor($1[1]);
SampleDB$# loop
SampleDB$# fetch sys_cursor into loop_id;
SampleDB$# array_append(result,loop_id);
SampleDB$# end loop;
SampleDB$# close sys_cursor;
SampleDB$# return result[];
SampleDB$# end;
SampleDB$# $$ language plpgsql;
CREATE FUNCTION
SampleDB=# select getmatch(array[2]);
ERROR: syntax error at or near "array_append" at character 1
QUERY: array_append( $1 , $2 )
CONTEXT: PL/pgSQL functio n "getmatch" line 9 at SQL statement
LINE 1: array_append( $1 , $2 )
and the second function is similarSampleDB=# create or replace function getmatch() returns setof integer as $$
SampleDB$# declare
SampleDB$# sys_cursor cursor is select sys_id from subsystems;
SampleDB$# loop_id subsystems.sys_id%type;
SampleDB$# begin
SampleDB$# open sys_cursor;
SampleDB$# loop
SampleDB$# fetch sys_cursor into loop_id;
SampleDB$# return next loop_id;
SampleDB$# end loop;
SampleDB$# close sys_cursor;
SampleDB$# return;
SampleDB$# end;
SampleDB$# $$ language plpgsql;
CREATE FUNCTION
SampleDB=# select getmatch();
ERROR: set-valued function called in context that cannot accept a set
CONTEXT: PL/pgSQL function "getmatch" line 8 at return nextwhat is wrong in my function ,anyhelp asap?ThanksVidya__________________________________________________
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