Postgres语法错误，从TableFoo插入到TableFoo SELECT中。

Question

Linux上的Postgres 8.1。

当我尝试：

   insert into card(
                    routine_id, page, row, col, show_card, flip_card
                 )
                    select (
                        999, 0, 0, 0, show_card, flip_card
                    ) from card   WHERE
                        routine_id = 89 AND page = 0  AND row = 0  AND col = 0
                ;

我得到：

ERROR:  column "routine_id" is of type integer but expression is of type record
HINT:  You will need to rewrite or cast the expression.

该选择将返回一个称为“行记录”的单列，如下所示：（999,0,0,0,1,0）

谷歌搜索表明我的语法是SQL正确的，也许这是Postgres的偏差？

Answer 1

将括号放在SELECT之后。

INSERT INTO card
    (routine_id, page, row, col, show_card, flip_card)
    SELECT 999, 0, 0, 0, show_card, flip_card
        FROM card   
        WHERE routine_id = 89 AND page = 0  AND row = 0  AND col = 0;

Answer 2

消除选择部分周围的括号：

insert into card (routine_id, page, row, col, show_card, flip_card)
    select 999, 0, 0, 0, show_card, flip_card
    from card
    WHERE routine_id = 89 AND page = 0  AND row = 0  AND col = 0;

Answer 3

似乎将括号括入您的列使Postgres将其视为“行记录”。 我猜想删除括号会使它起作用，因为结果集将只是带有值的单独列的列表