Delete statement does not work with PostgreSQL 8.0.1

Ledina Hido wrote:

Hi,

I have just today installed the new version of PostgreSQL (8.1.0), and
my old code seems to have stopped working.

I am basically trying to delete a row from a table:

DELETE FROM "CON" WHERE "ref"='CON5';

I have checked and CON5 is definitively in the CON table. I tried using
JDBC, pgAdminIII and command line but it doesn't seem to work. I get a
message saying 0 rows have been affected, as if the item was not in the
table. Am I doing something wrong? Has the syntax changed or is this
just a bug?

Well, if DELETE had stopped working then 8.1 would never have been
released, so there's something more subtle going on.

1. What happens if you run SELECT * FROM "CON" WHERE "ref"='CON5';
2. What does an "explain analyse" show for that?
3. If it's using an index try: SET enable_indexscan=false; then run
query 1 again.

--
Richard Huxton
Archonet Ltd

Hi guys,

Thanks for you suggestions.

After a long night I found out what the problem was. I had a trigger
for deletes on table CON, and the trigger returned NEW at the end
instead of OLD.

Thanks again,
Ledina

PS I didn't really think 8.1 delete had stopped working. It was just
far too early in the morning.

On 24 Nov 2005, at 08:22, Richard Huxton wrote: