添加优化字段；

src/test/java/resources/db_sql/hmhj/v145/20210708添加记录表和字段.sql

-CREATE TABLE "public"."entrust_sample_record" (
+CREATE TABLE "public"."entrust_sample_record" (
@@ -61,6 +61,6 @@ COMMENT ON COLUMN "public"."entrust_sample"."compliance_test" IS '符合性检
 
 -- 新增样品检测项目字段 --
 ALTER TABLE "public"."entrust_sample_item"
-    ADD COLUMN "univalent" numeric;
+    ADD COLUMN "univalent" numeric default 0.00;
 
 COMMENT ON COLUMN "public"."entrust_sample_item"."univalent" IS '单价';