Robert Haas wrote:
> On Thu, Sep 15, 2016 at 9:59 AM, Tom Lane <> wrote:
> > Possibly we ought to change things so that the default value of
> > min_parallel_relation_size is a fixed number of bytes rather
> > than a fixed number of blocks.  Not sure though.
> The reason why this was originally reckoned in blocks is because the
> data is divided between the workers on the basis of a block number.

Maybe the solution is to fill the table to a given number of blocks
rather than a number of rows.

Álvaro Herrera      
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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