Add clarifying comment

CosmWasm · Oct 26, 2021 · a8e1434 · a8e1434
1 parent 9e51ab5
commit a8e1434
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/packages/storage-plus/src/indexes.rs b/packages/storage-plus/src/indexes.rs
@@ -323,6 +323,7 @@ pub(crate) struct UniqueRef<T> {
 
 /// UniqueIndex stores (namespace, index_name, idx_value) -> {key, value}
 /// Allows one value per index (i.e. unique) and copies pk and data
+/// The optional PK type defines the type of Primary Key deserialization.
 pub struct UniqueIndex<'a, K, T, PK = ()> {
     index: fn(&T) -> K,
     idx_map: Map<'a, K, UniqueRef<T>>,