Re: RFC: planner statistics in 7.2

> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Remember one idea is for index scans to automatically update the expired
> > flag in the index bitfields when they check the heap tuple.
> 
> There is no such flag, and I'm not planning to add one before I fix
> statistics ;-)
> 
> There are a number of things that'd have to be thought about before
> such a thing could happen.  For one thing, trying to obtain write locks
> instead of read locks during a btree scan would blow us out of the water
> for supporting concurrent btree operations.

Yes, it was just an idea.  Someone may add it for 7.2.

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