"Florian G. Pflug" <fgp(at)phlo(dot)org> writes:
> Tom Lane wrote:
>> The real problem with the scheme you propose is that it turns a
>> cache flush on one table into a system-wide cache flush.
> Yes.. It really builds on the idea that those flushes happen not
> too frequently.
The problem is that flushes may be infrequent for any one table,
but if you use an implementation that converts every per-table
flush to a system-wide flush, it's not so infrequent anymore.
regards, tom lane