What is the point of both build and build_any?

[tqwewe]

I see sea-query has two common functions throughout traits: build() and build_any()

What is the purpose of having both of these? I see that the source code for it is almost completely identical if I'm not mistaken.
The only difference I notice, is that build_any takes dyn, where build takes impl.

Are both these functions necessary?

[tyt2y3]

build is static dispatch, while build_any is dynamic dispatch. So if the user only ever uses one database variant, they'd simply call build.
The any is only useful for this case where the QueryBuilderBackend can be swapped runtime.
But even SeaORM uses a enum and match statement, so I guess 'in the wild usage' is rare.