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I've ran a simple insert command:

INSERT INTO names (name) VALUES ('john')

As a response I get a PG::Result object. I've been digging through those docs but I can't squeeze out of that object the info I need: what is the ID of the row I've just inserted?

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1 回答 1

34 
res  = conn.exec("INSERT INTO names (name) VALUES ('john') returning *")
res[0]
res[0]['id']

我曾经returning *只是为了表明您可以返回所有内容，而不仅仅是 id。但显然，如果您只需要 id 或 id 以及其他一些列，请使用显式形式，就像在选择列表中一样

returning id, name
于 2013-07-25T23:09:28.057 回答