On Fri, Feb 2, 2018 at 4:40 PM, Peter Eisentraut
> There might be other options, but one way to solve this would be to
> treat partition bounds as a general expression in the grammar and then
> check in post-parse analysis that it's a constant.
Yeah -- isn't the usual way of handling this to run the user's input
through eval_const_expressions and see if the result is constant?
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