Use case

One random guy asked it on the internet.

Describe the solution you'd like

On output it will create SQLite database with a single table named table.
On input it will read SQLite database and pick the first table from it.

Most likely it has to be read from seekable file.
Most likely it will require to substitute some wrapper around ReadBuffer/WriteBuffer to make SQLite work.
Alternatively it can work by slurping it into memory.

Additional notes

Do you know that we alrady have SQLite as table and database engines?