Can we define the actual problem?
Does it have to do with NEW and OLD with UNIONS?
  Or is it simply any conditional rule using UNION/EXCEPT/INTERSECT/...?

I ask because I'm confused by Tom's examples of failures.

Tom Lane wrote:
Dmitry Tkach <[EMAIL PROTECTED]> writes:
  
Tom Lane wrote:
    
Dmitry Tkach <[EMAIL PROTECTED]> writes:
      
It would have saved a lot of trouble if it just complained about that 
union thing right away and refuse to create the rule...
        
That's what happens in CVS tip.

      
I thought you said it was only complaining about references to new and 
old, not about *any* union clause...
    

I don't see a need to reject "any" union clause.  AFAIK the cases that
don't work are just the ones where NEW or OLD are referenced.

			regards, tom lane

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