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.

How to take product category into account for WooCommerce product search results
How do I display a specific category product in WooCommerce? How do I customize search results in WooCommerce? How do I enable product search in WooCo...
Why is my page displaying small A Japanese character icons?
Why do some fonts show up as squares? Why can't I see other fonts? Why some Chinese characters show up as squares? How do I get Windows 10 to read Chi...
Syncing WP Database Changes Between Environments How To Handle Merging w/o touching database
How do I keep my dev and prod databases synced? How do I sync my WordPress database? What is WP merge? How do I use WordPress staging plugins? How can...