Re: Minor buglet in update...from (I think)

I can confirm this is still a bug.


> 
> A minor nasty error I got when trying to improve the query used to disable
> triggers:
> 
> create table t1(f1 int4, f2 int4);
> create table t2(f1 int4, f2 int4);
> 
> insert into t1 values(1, 0);
> insert into t1 values(2, 0);
> 
> insert into t2 values(1, 0);
> 
> update t1 set f2=count(*) from t2 where t1.f1=1 and t2.f1=t1.f1 ;
> UPDATE 1
> 
> update t1 set f2=count(*) from t2 where t1.f1=2 and t2.f1=t1.f1 ;
> ERROR:  ExecutePlan: (junk) `ctid' is NULL!
> 
> I would have expected no update to occur since no rows match.
> 
> 
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