Andrew Dunstan <andrew(at)dunslane(dot)net> writes:
> What's the best way for me to find out if a given parameter of a 
> function is a constant? The context is that it's expensive to process, 
> and in most cases will in fact be a constant, so if it is in fact a 
> constant I'd like to process it once and stash the results.

I think we added get_fn_expr_arg_stable() for precisely that
purpose.

			regards, tom lane

In response to

• parameter info? at 2013-02-01 01:05:43 from Andrew Dunstan

Responses

• Re: parameter info? at 2013-02-01 13:34:21 from Andrew Dunstan

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