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From: PG Doc comments form <[email protected]>
To: [email protected]
Cc: [email protected]
Subject: SQL "RETURNING * | output_expression [ [ AS ]" is wrong
Date: Mon, 21 Mar 2022 10:09:55 +0000
Message-ID: <[email protected]> (raw)

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/14/sql-update.html
Description:

https://www.postgresql.org/docs/14/sql-update.html

Hi! AFAIK, UPDATE .... RETURNING works with INTO varname, not AS

Documentation says: 
UPDATE
[ WITH [ RECURSIVE ] with_query [, ...] ]
UPDATE [ ONLY ] table_name [ * ] [ [ AS ] alias ]
    SET { column_name = { expression | DEFAULT } |
          ( column_name [, ...] ) = [ ROW ] ( { expression | DEFAULT } [,
...] ) |
          ( column_name [, ...] ) = ( sub-SELECT )
        } [, ...]
    [ FROM from_item [, ...] ]
    [ WHERE condition | WHERE CURRENT OF cursor_name ]
    [ RETURNING * | output_expression [ [ AS ] output_name ] [, ...] ]

BUT it does not work, it does:
UPDATE
[ WITH [ RECURSIVE ] with_query [, ...] ]
UPDATE [ ONLY ] table_name [ * ] [ [ AS ] alias ]
    SET { column_name = { expression | DEFAULT } |
          ( column_name [, ...] ) = [ ROW ] ( { expression | DEFAULT } [,
...] ) |
          ( column_name [, ...] ) = ( sub-SELECT )
        } [, ...]
    [ FROM from_item [, ...] ]
    [ WHERE condition | WHERE CURRENT OF cursor_name ]
    [ RETURNING * | output_expression [ [ INTO ] output_name ] [, ...] ]

Regards, 
Miguel.

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