Re: Block-level CRC checks

Tom Lane wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>   
>> OK, fair enough.  My implication that only page formats were at issue
>> was off-base.  My underlying point was that I think we have to be
>> prepared to write code that can understand old binary formats (on the
>> tuple, page, or relation level) if we want this to work and work
>> reliably.  I believe that there has been much resistance to that idea.
>>     
>
> We keep looking for cheaper alternatives.  There may not be any...
>
>             
>   

Yeah. I think we might need to bite the bullet on that and start 
thinking more about different strategies for handling page versioning to 
satisfy various needs. I've been convinced for a while that some sort of 
versioning scheme is inevitable, but I do understand the reluctance.

cheers

andrew