Where are pending comments stored in the wordpress database?

When I am logged into WordPress as an admin, i see i have 4099 comments waiting.

If I chose the ‘Comments -> All Comments’ I do see a bunch of ping backs/trackbacks that are awaiting my approval. ( I have Disqus installed which handles most of my regular comments)

If i click on ‘edit’ on one of these pending items, I am take to this type of URL where the c variable changes based on the item:
/wp-admin/comment.php?action=editcomment&c=21859

So I assumed that in my wordpress database i could look up this comment using this sql select:

mysql> select * from wp_comments where comment_ID=’21859′;
Empty set (0.00 sec)

The result is no results.

Does anyone know where I can find these in my database?

Thanks!