Title: WordPress 2.3 Database Error in post.php
Last modified: August 18, 2016

---

# WordPress 2.3 Database Error in post.php

 *  [datasta](https://wordpress.org/support/users/datasta/)
 * (@datasta)
 * [18 years, 8 months ago](https://wordpress.org/support/topic/wordpress-23-database-error-in-postphp/)
 * I recently upgraded to WordPress 2.3 and everything worked perfectly fine. However,
   after running it for a few days, I started encountering this error.
 * WordPress database error: [Table ‘dhailblog.wp_post2cat’ doesn’t exist]
    SELECT
   cat_ID AS ID, MAX(post_modified) AS last_mod FROM `wp_posts` p LEFT JOIN `wp_post2cat`
   pc ON p.ID = pc.post_id LEFT JOIN `wp_categories` c ON pc.category_id = c.cat_ID
   WHERE post_status = ‘publish’ GROUP BY cat_ID 0
 * This error happens when a post auto saves and is listed below the post. Thankfully
   I don’t lose the post I’m working on, but i still see the errors…
 * Any idea whats going on or how to fix it?

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [MichaelH](https://wordpress.org/support/users/michaelh/)
 * (@michaelh)
 * [18 years, 8 months ago](https://wordpress.org/support/topic/wordpress-23-database-error-in-postphp/#post-633246)
 * You likely have a plugin or a theme that is not compatible with Version 2.3.
 * [http://codex.wordpress.org/Plugins/Plugin_Compatibility/2.3](http://codex.wordpress.org/Plugins/Plugin_Compatibility/2.3)
   
   [http://codex.wordpress.org/Themes/Theme_Compatibility/2.3](http://codex.wordpress.org/Themes/Theme_Compatibility/2.3)
 *  Thread Starter [datasta](https://wordpress.org/support/users/datasta/)
 * (@datasta)
 * [18 years, 8 months ago](https://wordpress.org/support/topic/wordpress-23-database-error-in-postphp/#post-633373)
 * I’m not using any plugins at all other than wp-cache.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘WordPress 2.3 Database Error in post.php’ is closed to new replies.

## Tags

 * [database](https://wordpress.org/support/topic-tag/database/)
 * [post error](https://wordpress.org/support/topic-tag/post-error/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [datasta](https://wordpress.org/support/users/datasta/)
 * Last activity: [18 years, 8 months ago](https://wordpress.org/support/topic/wordpress-23-database-error-in-postphp/#post-633373)
 * Status: not resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics