调整收藏规格的字段长度

src/main/java/com/uas/platform/b2c/trade/presale/model/Collection.java

@@ -84,7 +84,7 @@ public class Collection implements Serializable {
 	/**
 	 * 规格信息
 	 */
-	@Column(name = "store_spec", columnDefinition = "TEXT")
+	@Column(name = "store_spec", length = 4000)
 	private String spec;
 
 	/**