Re: Refcursor bug

Yes this worked in previous versions.

As you close the cursor say '<unnamed portal 1>' when you fetch it, it closes the underlying cursor. And the send variable also points to the same variable, and you send a FETCH ALL..... which throws exception because cursor has already been closed.

--Altaf

Dave Cramer <pg(at)fastcrypt(dot)com> wrote: Did this work in previous versions ?

I made a change recently which closes the refcursor immediately after reading it, because it was leaking on large batches

Dave
On 27-Apr-07, at 8:20 AM, Altaf Malik wrote:

Hi,
I encountered a bug with refcursors with the latest JDBC driver. I cannot get two refcursors as OUT parameter if both of them point to the same underlying refcursor.

Steps to produce:
1- Create table:
CREATE TABLE testref ( a int4, b varchar);

2-Create the function:
CREATE OR REPLACE FUNCTION reftwo(
A OUT REFCURSOR, B OUT REFCURSOR)
RETURNS record AS $$ DECLARE
V_REF REFCURSOR;
BEGIN
OPEN V_REF FOR SELECT * FROM testref;
A:=V_REF;
B:=V_REF;
END; $$ LANGUAGE 'plpgsql'

3- Run the following code:

con.setAutoCommit(false);
CallableStatement stm = con.prepareCall("{call reftwo(?,?)}");
stm.registerOutParameter(1,Types.OTHER);
stm.registerOutParameter(2,Types.OTHER);
stm.execute();
ResultSet rs = (ResultSet) stm.getObject(1);
ResultSet rs2 = (ResultSet) stm.getObject(2);
con.setAutoCommit(true);

When i execute this code, it reports the following problem:
org.postgresql.util.PSQLException: ERROR: cursor "<unnamed portal 1>" does not exist

Am i doing something wrong?

--Altaf Malik

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