Ok' ve got it, I've found some comment from Tom Lane on that:
"The whole custom-variable thing is being abused far beyond what the
facility was intended for, anyway. Rather than allowing variables to
spring into existence like magic, what we should have is some facility
for letting session-local v
Hi list,
I'm using some global variables through custom_variable_classes facility.
I've recently switched from 8.1 to 9.1
and somewhere along the line the behavior of custom_variable_classes has
changed - if the variable has not been set
for a given session invoking it (SELECT current_setting('nam
