"Jehan-Guillaume (ioguix) de Rorthais" <ioguix@free.fr> writes:
> On Wed, 30 Jan 2019 14:19:52 +0100
> Tumasgiu Rossini <rossini.t@gmail.com> wrote:
>> According to the doc [1],
>> pg_total_relation_size add toasted data *and* indexes to the mix.
> *and* FSM *and* VM.
Yeah. In this particular case, the other page presumably belongs to the
toast table's index, which will have a metapage even if the table is
empty.
regards, tom lane