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Yesterday, I shared a single-line MySQL command to delete all post revisions from a WordPress database. While this might help to delete past revisions, it would be easier if we could disable post revisions completely.
Turning off post revisions, the WordPress “feature”, is as easy as adding the line below to your wp-config.php file (found in the same folder as wp-content and wp-admin folders). Do not forget to backup your MySQL database before adding the code (although technically, this isn’t a DB command, it is better to be safe than….)
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define(’WP_POST_REVISIONS’, false);
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