-- 账户表
CREATE TABLE account (
  a_id SERIAL PRIMARY KEY,
  meta JSONB
);
-- {"name":"name",
--  "balance": 0.00,
--  “budget": [
--	{"time":"2022-02","value":20.32},
--  {"time":"2022-01","value":30.32}
--  ]
--  "discription":"something"}

-- 类别表
CREATE TABLE category (
  c_id SERIAL PRIMARY KEY,
  meta JSONB
);
-- {"name":"name",
--	"type":"in"/"out",
--  “budget": [
--	{"time":"2022-02","value":20.32},
--  {"time":"2022-01","value":30.32}
--  ]
--	"discription":"something"}

-- 流水表
CREATE TABLE transaction (
  t_id SERIAL PRIMARY KEY,
  c_id INTEGER REFERENCES category(c_id),
  a_id INTEGER REFERENCES account(a_id),
  meta JSONB
);
-- {"discription":"something",(可选)
--	"type":"in"/"out"/"transfer",
--  "transfer_dist":a_id,(可选）
--  "reimburse":{  （报销）
--  "finish": true,
--  "ref":t_id
--	}
--	"":"something"}