User feedback requested on temp tables usage for Hot Standby

Some people have asked for the ability to create temp tables on a Hot
Standby server.

I've got a rough implementation plan but it would have some
restrictions, so I would like to check my understanding of the use
case for this feature so I don't waste time implementing something
nobody actually finds useful.

My understanding is that the main use cases for that would be limited
to these two options only:

1. CREATE TEMP TABLE foo AS SELECT ....

2. CREATE TEMP TABLE foo (..);
INSERT INTO foo ...

and sometimes a TRUNCATE foo;

In almost all cases people don't run multiple INSERTs, nor do they run
UPDATEs or DELETEs, so the above actions would cover 99% of use cases.

Can anyone give backup to that opinion, or alternate viewpoints?

Thanks,

--
 Simon Riggs                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services