--供应商信息增加三个属性
ALTER TABLE "public"."srm_supplier" ADD COLUMN "intro" VARCHAR(1024) COLLATE "pg_catalog"."default";
ALTER TABLE "public"."srm_supplier" ADD COLUMN "business_license" VARCHAR(64) COLLATE "pg_catalog"."default";
ALTER TABLE "public"."srm_supplier" ADD COLUMN "certificates" TEXT COLLATE "pg_catalog"."default";

COMMENT ON COLUMN "public"."srm_supplier"."intro" IS '企业简介';
COMMENT ON COLUMN "public"."srm_supplier"."business_license" IS '企业营业执照';
COMMENT ON COLUMN "public"."srm_supplier"."certificates" IS ' 国家权威认证机构颁发的证书';