v0.3.3-pre.007

crates/ksp-store-postgres-lib/src/error.rs

@@ -1,5 +1,5 @@
 // file: crates/ksp-store-postgres-lib/src/error.rs
-// version: 7
+// version: 8
 
 /// Stable KSP error code reserved for PostgreSQL retention transitions that require unsupported physical compaction.
 pub const ERROR_CODE_POSTGRES_RETENTION_COMPACTION_UNSUPPORTED: ksp_store_api::ErrorCode =
@@ -33,6 +33,8 @@ pub enum PostgresBackendErrorKind {
     ReadFailed,
     /// A RAW write requires an existing canonical reference that is not durable.
     ReferenceNotFound,
+    /// The requested RAW retention transition requires a compacted representation unsupported by PostgreSQL.
+    RetentionCompactionUnsupported,
     /// The database schema history contains a migration newer than this runtime understands.
     SchemaNewer,
     /// Explicit backend shutdown did not drain inside the supplied deadline.