properly select character items based on the latest location

src/entity/gateway/postgres/postgres.rs

@@ -322,6 +322,13 @@ impl EntityGateway for PostgresGateway {
                    join item on item.id = item_location.item
                    where cast (location -> 'Inventory' ->> 'character_id' as integer) = $1
                       or cast (location -> 'Bank' ->> 'character_id' as integer) = $1"#;
+        let q = r#"select * from (
+                      select distinct on (item_location.item) item.id, item_location.location, item.item
+                      from item_location join item on item.id = item_location.item
+                      order by item_location.item, item_location.created_at desc
+                   ) as i
+                   where cast (location -> 'Inventory' ->> 'character_id' as integer) = 2
+                      or cast (location -> 'Bank' ->> 'character_id' as integer) = 2"#;
         let items = sqlx::query_as::<_, PgItemWithLocation>(q)
             .bind(char.id.0)
             .fetch(&self.pool);