数据库优化

src/main/java/com/izouma/nineth/domain/Collection.java

@@ -24,7 +24,8 @@ import java.util.List;
 @Data
 @Entity
 @Table(name = "collection_info", indexes = {
-        @Index(columnList = "type,source"),
+        @Index(columnList = "type"),
+        @Index(columnList = "source"),
         @Index(columnList = "minterId"),
         @Index(columnList = "onShelf"),
         @Index(columnList = "ownerId"),