On 3/4/17 12:39, Tomas Vondra wrote:
>> Can we have a test case for page_checksum(), or is that too difficult to
>> get running deterministicly?
> I'm not sure it can be made deterministic. Certainly not on heap pages, 
> because then it'd be susceptible to xmin/xmax changes, but we have other 
> bits that change even on index pages (say pd_lsn).
> So I'm afraid that's not going to fly.

Then just run it and throw away the result.  See sql/page.sql for some

Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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