New multipart upload table layout

src/table/schema.rs

@@ -8,6 +8,8 @@ use garage_util::migrate::Migrate;
 
 use crate::crdt::Crdt;
 
+// =================================== PARTITION KEYS
+
 /// Trait for field used to partition data
 pub trait PartitionKey:
 	Clone + PartialEq + Serialize + for<'de> Deserialize<'de> + Send + Sync + 'static
@@ -31,6 +33,8 @@ impl PartitionKey for FixedBytes32 {
 	}
 }
 
+// =================================== SORT KEYS
+
 /// Trait for field used to sort data
 pub trait SortKey: Clone + Serialize + for<'de> Deserialize<'de> + Send + Sync + 'static {
 	/// Get the key used to sort
@@ -49,6 +53,14 @@ impl SortKey for FixedBytes32 {
 	}
 }
 
+impl SortKey for u32 {
+	fn sort_key(&self) -> Cow<'_, [u8]> {
+		Cow::from(u32::to_be_bytes(*self).to_vec())
+	}
+}
+
+// =================================== SCHEMA
+
 /// Trait for an entry in a table. It must be sortable and partitionnable.
 pub trait Entry<P: PartitionKey, S: SortKey>:
 	Crdt + PartialEq + Clone + Migrate + Send + Sync + 'static