From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | Marcos Barreto de Castro <mbdecastro(at)yahoo(dot)com> |
Cc: | pgsql-general(at)hub(dot)org |
Subject: | Re: Operations widh CURSORS |
Date: | 2000-06-02 15:54:30 |
Message-ID: | 15212.959961270@sss.pgh.pa.us |
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Lists: | pgsql-general |
Marcos Barreto de Castro <mbdecastro(at)yahoo(dot)com> writes:
> I am issuing a "BEGIN WORK" statement, after that I
> am issuing "DECLARE c_cursor FOR SELECT * FROM table".
> When, after that, I issue "DECLARE c_cursor1 FOR
> SELECT COUNT(*) FROM table" I get a segmentation
> fault.
Seems to work fine for me ... what version are you using?
regards, tom lane
regression=# create table foo(f1 int);
CREATE
regression=# insert into foo values(1);
INSERT 277673 1
regression=# insert into foo values(2);
INSERT 277674 1
regression=# insert into foo values(3);
INSERT 277675 1
regression=# insert into foo values(4);
INSERT 277676 1
regression=# begin;
BEGIN
regression=# DECLARE c_cursor CURSOR FOR SELECT * FROM foo;
SELECT
regression=# DECLARE c_cursor1 CURSOR FOR SELECT count(*) FROM foo;
SELECT
regression=# fetch 1 from c_cursor;
f1
----
1
(1 row)
regression=# fetch 1 from c_cursor1;
count
-------
4
(1 row)
regression=# fetch 1 from c_cursor;
f1
----
2
(1 row)
regression=# fetch 1 from c_cursor;
f1
----
3
(1 row)
regression=# fetch 1 from c_cursor;
f1
----
4
(1 row)
regression=# fetch 1 from c_cursor1;
count
-------
(0 rows)
regression=# fetch 1 from c_cursor;
f1
----
(0 rows)
regression=# end;
COMMIT
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