If you have run a WordPress blog for any length of time, you should know how large the SQL database can get.
This is largely due to the “Post Revisions”, which get auto-saved.
If you edit a post a few times, a huge list of revisions gets saved to the database. You can see these at the bottom of the post editing page.
This post has easy methods to disable and delete the post revisions, which are automatically cached by WordPress.

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