postgres 设置主键自增

1.新建表

CREATE TABLE "public"."t_test" (
"id" int4  NOT NULL,
"name" varchar(255) COLLATE "default",
CONSTRAINT "t_test_pkey" PRIMARY KEY ("id")
)
WITH (OIDS=FALSE)
;

ALTER TABLE "public"."t_test" OWNER TO "postgres";

COMMENT ON COLUMN "public"."t_test"."id" IS '主键';

COMMENT ON COLUMN "public"."t_test"."name" IS '名称';

2.新建序列

CREATE SEQUENCE "public"."t_test_id_seq"
 INCREMENT 1
 MINVALUE 1
 MAXVALUE 9223372036854775807
 START 2
 CACHE 1;

ALTER TABLE "public"."t_test_id_seq" OWNER TO "postgres";

SELECT setval('"public"."t_test_id_seq"', 2, true);

3.设置表的主键为序列的下一个值：通过Navicat设置