Problem using same tables for wordpress and bbpress

I’m trying to use the same database and tables for wordpress and bbpress but they don’t merge painlessly.

I set the table prefix in bbpress’s config to wp_ and set the database to be the same as wordpress’s. I also set the wp_prefix in bbpress’s config.

Then I tried to start bbpress but it threw a bunch of exceptions and now it will not save new posts. Can anyone help me?

I enclose it’s exceptions

Now we’re going to create the database tables and fill them with some default data.

bbPress database error: [Incorrect table definition; there can be only one auto column and it must be defined as a key]
ALTER TABLE wp_posts ADD COLUMN post_id bigint(20) NOT NULL auto_increment

bbPress database error: [Key column 'post_id' doesn't exist in table]
ALTER TABLE wp_posts ADD PRIMARY KEY (post_id)

bbPress database error: [The used table type doesn't support FULLTEXT indexes]
ALTER TABLE wp_posts ADD FULLTEXT KEY post_text (post_text)

   1. Created table wp_forums
   2. Created table wp_topics
   3. Created table wp_topicmeta
   4. Created table wp_tags
   5. Created table wp_tagged
   6. Changed default value of wp_posts.post_status from publish to 0
   7. Added column wp_posts.post_id
   8. Added column wp_posts.forum_id
   9. Added column wp_posts.topic_id
  10. Added column wp_posts.poster_id
  11. Added column wp_posts.post_text
  12. Added column wp_posts.post_time
  13. Added column wp_posts.poster_ip
  14. Added index wp_posts FULLTEXT KEY post_text (post_text)
  15. Added index wp_users UNIQUE KEY user_login (user_login)

bbPress database error: [Field 'post_content' doesn't have a default value]
INSERT INTO wp_posts (forum_id, topic_id, poster_id, post_text, post_time, poster_ip, post_status, post_position) VALUES ('1', '1', '1', '

First Post! w00t.
','2008-02-22 15:10:39', '127.0.0.1', '0', 1)

bbPress database error: [Unknown column 'post_id' in 'field list']
SELECT post_id, poster_id FROM wp_posts WHERE topic_id = 1 AND post_status = 0 ORDER BY post_time

bbPress database error: [Unknown column 'post_id' in 'where clause']
SELECT * FROM wp_posts WHERE post_id = 0

Finished!