bijection/schema.ts allows you to declare your tables
and their indexes. Bijection derives your
document types from it, and validates every insert and update in the declared
tables — unless you turn that off with
schemaValidation: false.
Documents in tables the schema doesn’t list are never validated.
The file is optional: without it, no schema is enforced on your documents. If
you don’t have a schema yet, you can
generate one from the console.