Question

在Linux上发布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
                ;

我明白了：

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

select返回一个名为“row record”的列，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，也许这是一个Postgres偏差??

Answer 1

在SELECT之后删除括号。

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 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

似乎将括号括起来使Postgres将其视为“行记录”。我想，删除括号会使它工作，因为结果集只是一个带有值的单独列的列表

从TableFoo INSERT到TableFoo SELECT中的Postgres语法错误。

3 个答案: