Re: Temporary tables under hot standby

2012/4/25 Simon Riggs <simon(at)2ndquadrant(dot)com>:

> So you are saying it is OK to not be able to *create* them on HS, just
> *use* pre-defined tables?
>
> That's almost useless IMHO.
>
> Applications expect to be able to do this all in the same transaction
> on one session
> CREATE TEMP TABLE x;
>  ...DML commands...
> SELECT ... FROM x;

That’s not how standard-like temporary tables work, they are supposed
to be declared beforehand. That makes sense if you consider the schema
and the set of database-using applications as one. I assume that
wanting to define applications independently from the database schema
is the reason of existence for the PG-like temporary transactions.

The way standard-like temporary tables work is exactly why I assume
Noah proposes to implement them: because they work nicely with HS.

Nicolas

--
A. Because it breaks the logical sequence of discussion.
Q. Why is top posting bad?