pub async fn assert_runtime_schema_v4_compatible(
pool: &PgPool,
) -> Result<(), SchemaConformanceError>Expand description
Asserts that a host database is compatible with the canonical schema-v4 contract before the host accepts billing work.
Call this after the host has applied its immutable Syrup Rail install or forward-only upgrade migration through its normal migration deployment. This function is read-only and requires PostgreSQL major version 18.