Re: BUG #16373: Behavior of Temporary table creation

PG Bug reporting form <noreply@postgresql.org> writes:
> Hi! Have a small doubt I’m hoping you can help me with..simply put, where
> are the temporary tables created? 

> AFAIK, they stay in the memory till the size reaches the temp_buffers limit,
> and then to the storage, for where it is accessed using the temp buffer,

They are accessed through temp buffers, yes, but storage space gets
reserved on-disk immediately whenever the relation is extended.
This is the same as for non-temp tables.

            regards, tom lane