Hi,
I've seen the session variable question pop up a fair bit on this list. 
The temporary table solution seems good but I've got a question before 
using it...
- My app creates a temp table for session vars
- UPDATE, INSERT and DELETE triggers on tables use this data
My question is:
If I run a query directly through the psql command line tool (or another 
app that doesn't setup this temp table) that temp table wont exist.
How can I write the trigger function to detect the absence of the temp 
table and deal with it gracefully? I think I need some SQL to determine 
which pg_temp_N schema belongs to my session.
Is this possible?
TIA,
James