PostgreSQL建表模板语句

模板语句如下：

CREATE TABLE public.t_user (
  "id" BIGSERIAL NOT NULL,
  "username" VARCHAR(64) NOT NULL,
  "password" VARCHAR(64) NOT NULL,
  "create_time" TIMESTAMP(0) default CURRENT_TIMESTAMP not null,
  "update_time" TIMESTAMP(0) default CURRENT_TIMESTAMP not null
);
-- 注释
COMMENT ON TABLE public.t_user IS '用户表';
COMMENT ON COLUMN public.t_user.id IS '主键';
COMMENT ON COLUMN public.t_user.username IS '用户名';
COMMENT ON COLUMN public.t_user.password IS '密码';
COMMENT ON COLUMN public.t_user.create_time IS '创建时间';
COMMENT ON COLUMN public.t_user.update_time IS '更新时间';
-- 创建自增序列
alter sequence "t_user_ID_seq" restart with 1 increment by 1;
-- 创建主键序列
drop index if exists "t_user_pkey";
alter table "t_user" add constraint "t_user_pkey" primary key ("ID");