How does Attachments are linked to a post ?

[marocnl]

Hi All,

I wonder how the attachment file can be linked to the post.
The fact is that when you upload the attachment file The post doesn't exist yet.
So what is the element that make the link possible ?
$poststarttime ? Sessionid ?

Thanks.

[Paul M]

The system uses $posthash.

[marocnl]

Thanks Paul

So later How can I get the post ID from $posthash ?
Is there an SQL table linking posthash and related post id ?

Thanks

[marocnl]

nobody can help ?