Re: Mention RETURNING ... INTO target
| От | David G. Johnston |
|---|---|
| Тема | Re: Mention RETURNING ... INTO target |
| Дата | |
| Msg-id | CAKFQuwa6JQ9kBTOnCALcPOSqvAr7_xtT00ox5KD98n-AXn+7pA@mail.gmail.com обсуждение исходный текст |
| Ответ на | Mention RETURNING ... INTO target (PG Doc comments form <noreply@postgresql.org>) |
| Ответы |
Re: Mention RETURNING ... INTO target
|
| Список | pgsql-docs |
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/14/sql-insert.html
Description:
It looks like INSERT INTO ... RETURNING allows defining a target for the
returned values like SELECT ... INTO does.
This could be mentioned in the synopsis, or at least in the description of
"output_expression", maybe even garnished with an example.
That isn't how it works. RETURNING simply turns INSERT into a result set producing SQL Command. And SQL doesn't have a concept of "target" (variables) in the sense you are thinking. pg/pgsql does, allowing result set data to be placed into variables.
If you look you'll notice a corresponding lack of "INTO" on the SELECT Command reference page as well, for the same reason.
David J.
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