Re: cascade delete

If I am understanding properly what you want, you have your
referential integrity backwards.
If you want everything from table image to be removed when you execute
'delete from accomm_images' your
table definition should be:

> CREATE TABLE accomm_images(
> accomm_id int4 NOT NULL references accomm(id),
> image_id int4 NOT NULL
> );

> CREATE TABLE image(
> id int4 NOT NULL references accomm_images(image_id) on
> delete cascade,
> url int4 NOT NULL
> );

The reference goes from child to parent, not parent to child, and from
what you say the image table is the child
and accomm_images is the parent.

On Feb 16, 2004, at 9:49 AM, Bhushan Bhangale wrote:

> Hi,
>
> I have following 2 tables in postgres DB. I created a cascade delete
> constraint on image_id column of accomm_images which is a foreign key
> from
> image tbale.
>
> When I execute -> delete from accomm_images
> It should delete all the child records of image table as well. But its
> not
> happening.
>
> CREATE TABLE image(
> id int4 NOT NULL,
> url int4 NOT NULL
> );
>
> CREATE TABLE accomm_images(
> accomm_id int4 NOT NULL references accomm(id),
> image_id int4 NOT NULL references image(id) on delete
> cascade
> );
>
>
> Is there anything missing?
>
> Thanks
> Bhushan
>
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