Pavan Deolasee <pavan.deola...@gmail.com> writes:
> On Wed, Sep 14, 2016 at 10:53 PM, Alvaro Herrera <alvhe...@2ndquadrant.com>
> wrote:
>> One thing not quite clear to me is how do we create the bitmap
>> representation starting from the array representation in midflight
>> without using twice as much memory transiently. Are we going to write
>> the array to a temp file, free the array memory, then fill the bitmap by
>> reading the array from disk?
> We could do that.
People who are vacuuming because they are out of disk space will be very
very unhappy with that solution.
regards, tom lane
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