为什么Postgres说专栏不存在？

Question

所以我一直在研究下面的sql脚本,我似乎无法弄清楚为什么它一直告诉我我插入的数据是在一个不存在的列中.任何更有体验Postgre的人能帮助我吗？

DROP SCHEMA pomodoro CASCADE;
CREATE SCHEMA pomodoro;
CREATE TABLE pomodoro.users
(
    uid smallint NOT NULL,
    username text NOT NULL,
    password text NOT NULL,
    weekly_goals bytea,
    CONSTRAINT users_pkey PRIMARY KEY (uid)
) WITH (OIDS=FALSE);

INSERT INTO pomodoro.users (uid, username,password)
VALUES (1,"dan","pass");

我得到的错误是:

INSERT INTO pomodoro.users (uid, username,password)
VALUES (1,"dan","pass");
psql:database-backup/start-script.sql:27: ERROR:  column "dan" does not exist
LINE 2: VALUES (1,"dan","pass");

Answer 1

双引号用于指定列名,因此您可以插入如下:

INSERT INTO pomodoro.users (uid, username,password) VALUES (1,'dan','pass');