the postgresql jobs bug

dear！
version:postgresql 9.4
create jobs:

steps->Definition:
begin;
insert into st_orderamount SELECT w.province,count(*) as c_amount FROM w_order w WHERE w.c_ordertype = 1 and w.c_paystatus='已支付' AND w.province <> '不限' and w.province<>'' GROUP BY w.province;
commit;

2 tables:
CREATE TABLE "public"."st_orderamount" (
"province" varchar(255) COLLATE "default",
"c_amount" int8
)
WITH (OIDS=FALSE)
;

CREATE TABLE "public"."w_order" (
"c_id" varchar(64) COLLATE "default" NOT NULL,
"cts" int8 NOT NULL,
"ctsstr" varchar(30) COLLATE "default",
"delts" timestamp(6),
"flag" int4,
"remark" varchar(500) COLLATE "default",
"sort" int4 NOT NULL,
"updatets" int8 NOT NULL,
"c_amount" int4,
"c_evaluatestatus" varchar(32) COLLATE "default",
"c_invoicestatus" varchar(32) COLLATE "default",
"c_orderno" varchar(64) COLLATE "default",
"c_parentid" varchar(64) COLLATE "default",
"c_paydate" varchar(32) COLLATE "default",
"c_payorderid" varchar(64) COLLATE "default",
"c_paystatus" varchar(16) COLLATE "default",
"c_price" int4,
"c_providerid" varchar(64) COLLATE "default",
"c_requirement" text COLLATE "default",
"c_servestatus" varchar(32) COLLATE "default",
"c_serviceid" varchar(64) COLLATE "default",
"c_standardid" varchar(64) COLLATE "default",
"c_userid" varchar(64) COLLATE "default",
"c_waiterid" varchar(64) COLLATE "default",
"c_area" varchar(255) COLLATE "default",
"c_contact" varchar(64) COLLATE "default",
"c_contactphone" varchar(64) COLLATE "default",
"c_discount" int4,
"c_discountmark" varchar(255) COLLATE "default",
"c_ordertype" int4,
"c_gid" varchar(255) COLLATE "default",
"c_gimg" varchar(255) COLLATE "default",
"c_gtitle" varchar(255) COLLATE "default",
"c_payway" varchar(100) COLLATE "default",
"c_appgimg" varchar(255) COLLATE "default",
"city" varchar(255) COLLATE "default" DEFAULT ''::character varying,
"county" varchar(255) COLLATE "default" DEFAULT ''::character varying,
"province" varchar(255) COLLATE "default" DEFAULT ''::character varying,
"c_normalstatus" int4 DEFAULT 0,
"c_cleardate" varchar(32) COLLATE "default",
"c_partner" varchar(255) COLLATE "default",
"c_userpartner" varchar(64) COLLATE "default" DEFAULT ''::character varying NOT NULL,
"c_spreaderid" varchar(64) COLLATE "default" DEFAULT ''::character varying NOT NULL,
"c_userspreaderid" varchar(64) COLLATE "default" DEFAULT ''::character varying NOT NULL,
"c_company" varchar(255) COLLATE "default",
"c_coin" int4,
"c_source" varchar(255) COLLATE "default"
)
WITH (OIDS=FALSE)
;
ALTER TABLE "public"."w_order" ADD UNIQUE ("c_orderno");
ALTER TABLE "public"."w_order" ADD PRIMARY KEY ("c_id");

the job execute succeed,but the table st_orderamount has not records;

if execute the insert sql statement ,the table st_orderamount will have the expected records,

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