On 5/3/17 11:36 PM, Alvaro Herrera wrote:
Andrew Dunstan wrote:

On 05/03/2017 04:42 PM, Tom Lane wrote:

One other point is that as long as we've got reserved keywords introducing
each clause, there isn't actually an implementation reason why we couldn't
accept the clauses in any order.  Not sure I want to document it that way,
but it might not be a bad thing if the grammar was forgiving about whether
you write the USING or ON part first ...

+1 for allowing arbitrary order of clauses. I would document it with the
USING clause at the end, and have that be what psql supports and pg_dump
produces. Since there are no WITH options now we should leave that out
until it's required.

Ok, sounds good to me.  Unless there are objections I'm going to have a
shot at implementing this.  Thanks for the discussion.

Works for me. Do you also plan to remove the parentheses for the USING clause?


Tomas Vondra                  http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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