Could

Can I split a huge wp_postmeta table across different databases or servers?

Can I split a huge wp_postmeta table across different databases or servers?

No. This is not practically possible primarily because there is no single interface to this table where you could implement the functionality you need, and even if you could, it would introduce some extremely gnarly problems.

Plugins Is there a way to programmatically enable a plugin?
Is there a way to programmatically enable a plugin?
How do I enable programmatically plugins in WordPress? How do I activate plugins? How do I stop WordPress plugins from loading on specific pages and p...
Search Add Custom Search Box to WooCommerce
Add Custom Search Box to WooCommerce
How do I add a search box in WooCommerce? How do I customize the search bar in WooCommerce? How do I add a custom search box in WordPress? How do I en...
Category Category being displayed without base parmalink
Category being displayed without base parmalink
How do I remove a category Base URL? How do I change a category Permalink in WordPress? What is Category base and Tag base in WordPress? How do I remo...