Dimitri Fontaine <dimi...@2ndquadrant.fr> writes:
> Tom Lane <t...@sss.pgh.pa.us> writes:
>> No, because there are people who do intentionally use placeholder
>> variables as session-local storage, and that would be taking away
>> that capability.
> Or do you want to open SET typo.wrogn TO 'foobar' to just work silently?
Well, right at the moment it *does* work silently, as long as the prefix
is one you listed in custom_variable_classes. I don't think we want to
take that away, and in particular I don't want to assume that every
variable will be declared in advance. It's a fairly safe bet that there
are some apps out there that would be broken by such a requirement.
At the same time, I'd kind of like to see a facility for declaring such
variables, if only so you could define them to be bool/int/real not just
strings. But this is getting far afield from the immediate proposal,
and no I'm not volunteering to do it.
regards, tom lane
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