Re: pgsql: doc: adjust UPDATE/DELETE's FROM/USING to match SELECT's FROM

On 2020-03-31 22:31, Bruce Momjian wrote:
> doc: adjust UPDATE/DELETE's FROM/USING to match SELECT's FROM
>
> Previously the syntax and wording were unclear.

@@ -23,7 +23,7 @@ PostgreSQL documentation
<synopsis>
[ WITH [ RECURSIVE ] <replaceable
class="parameter">with_query</replaceable> [, ...] ]
DELETE FROM [ ONLY ] <replaceable
class="PARAMETER">table_name</replaceable> [ * ] [ [ AS ] <replaceable
class="parameter">alias</replaceable> ]
- [ USING <replaceable class="PARAMETER">using_list</replaceable> ]
+ [ USING <replaceable class="parameter">from_item</replaceable> [,
...] ]
[ WHERE <replaceable class="PARAMETER">condition</replaceable> |
WHERE CURRENT OF <replaceable class="PARAMETER">cursor_name</replaceable> ]
[ RETURNING * | <replaceable
class="parameter">output_expression</replaceable> [ [ AS ] <replaceable
class="parameter">output_name</replaceable> ] [, ...] ]
</synopsis>

This change doesn't make sense. It is clearly a "using list" in the
case of DELETE. Trying to unify it with UPDATE is wrong because the
syntax is in fact different.

--
Peter Eisentraut http://www.2ndQuadrant.com/
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