这是我想发生的片段。这可能吗?
INSERT INTO join_table_1(table_1_id,table_2_id)
SELECT id, (INSERT INTO table_2(id) VALUES (uuid_generate_v4()) RETURNING id)
FROM table_1
也正在查看TRIGGER,但我找不到返回新插入行的ID的方法
答案 0 :(得分:1)
对我来说,要实现的目标还不是很清楚,但我认为您正在寻找的是data modifying CTE
with new_t2 as (
INSERT INTO table_2(id)
VALUES (uuid_generate_v4())
RETURNING id
)
INSERT INTO join_table_1 (table_1_id, table_2_id)
SELECT id, (select id from new_t2)
FROM table_1