Another question:
Does we need random_bool to spread workload? It seems to me a useless, because
it also invokes one backend to use more pages instead of using one which is
already in buffer cache. I think that it should generate a lot of extra i/o. Do
not forget WAL full page write for firstime modified page.
Zdenek
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Zdenek Kotala Sun Microsystems
Prague, Czech Republic http://sun.com/postgresql
