Skip to main content

check_schema_version

ff_backend_postgres::version

Function check_schema_version 

Source 
pub async fn check_schema_version(
    pool: &PgPool,
    required: u32,
) -> Result<(), EngineError>
Expand description

Compare the Postgres migration ledger against the binary’s required schema version and enforce Q12’s boot-time contract.

required is the migration version the caller’s binary was built against (typically a const REQUIRED_SCHEMA_VERSION: u32 ff-server embeds).

Wave 0 scope: implements the < (refuse) + == (pass) + > (warn) branches against sqlx’s _sqlx_migrations table. Wave 3 extends the > branch to read the per-migration backward_compatible annotation and refuse-to-start on a destructive-ahead ledger.