Is it possible to split database tables using HyperDB?

HyperDB lets you split whole tables across different databases but it won’t split a single table. You wouldn’t want that anyway because that means wordpress would have to query multiple databases to find a single post.

However, depending on how your site is set up, you might be able to work around that by creating a multisite wordpress install using subdirectories. That means splitting your site up into subdirectories that are actually separate wordpress installs. Then you can use hyperdb to distribute those tables.

Or an easier thing to do is find a web host that doesn’t limit your database size 🙂

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