Anytime WP Job Manager or related plugins (WP Job Manager Resumes, Cariera (Companies), Company Manager, Astoundify Company Listings, and MAS Company Manager) saves a listing, it does so for every field configured, even if there is no value to be saved.
This can result in a large amount of empty meta values stored in the database, ultimately causing slower query times, a larger database, and issues with querying for listings based on meta values (when using Search and Filtering for WP Job Manager).
Configuration can be found under the “Meta” tab in the associated Settings page (Job, Resume, or Companies).
You can contribute to this project on GitHub:
https://github.com/tripflex/wp-job-manager-empty-meta-cleanup
It’s also STRONGLY recommended that you also install the Index WP MySQL for Speed plugin
https://wordpress.org/plugins/index-wp-mysql-for-speed/
