Expand description
Postgres coordinated reader: thin alias over the generic core type.
Why this file is alias-only:
CoordinatedReader<R, Coord> is fully generic in eventuary-core — it
composes any partition-aware Reader<R> with any PartitionCoordinator<C>
and contains no Postgres-specific code. Every backend therefore only needs
pub type aliases to specialize the generic with its own reader and
coordinator (PgReader + PgPartitionCoordinator). The same module path
shape (eventuary::postgres::coordinated_reader::*) is preserved across
backends so users learn one structure once.
These aliases shorten call sites — PgCoordinatedReader reads better than
CoordinatedReader<PgReader, PgPartitionCoordinator> — and give the
umbrella a canonical, discoverable path next to reader, writer, and
partition_coordinator modules.