Comments on: Wordpress 2.3: a look at tagging

By: Tom

Tom — Thu, 31 Jan 2008 11:50:37 +0000

Yes, you’re right, regarding the table names. I’ll correct that now.

As regarding the compound primary key… hmn. That might explain a few things, but either way, it feels convoluted. Thanks for pointing that out.

By: kksid

kksid — Thu, 31 Jan 2008 03:01:50 +0000

Hi,

Thanks for this very useful post.

You said that you are annoyed with table wp_term_relationships because

“..
it means you could have two entries in this table, both with the same object_id and term_taxonomy_id, except they refer to different objects, because their term_taxonomy_id.taxonomy is different..
”
I think you meant “term_taxonomy.taxonomy” here.

Anyways, did you mean to say that *both* the object_id as well as the term_taxonomy_id are the same as another record in the table?

If it is so, I don’t think what you said is correct, because the pair of object_id and term_taxonomy_id constitute the compound primary key of wp_term_relationships which rules out their duplication.

Having said that, yes I agree that it seems to be a pretty convoluted way of doing things.

By: James

James — Mon, 10 Sep 2007 09:53:27 +0000

I’ve built a lot (>15) of WP 2.1 and 2.2 sites over the last year… now waiting for the deluge of queries as past clients upgrade, break things, trip over, become confused, weep a little. Ta for pointing the way through this stuff before I had to!