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2b47e29f20
Jeff Janes noted that the error cursor position shown for some errors would vary when operator_precedence_warning is turned on. We'd prefer that option to have no undocumented effects, so this isn't desirable. To fix, make sure that an AEXPR_PAREN node has the same exprLocation as its child node. (Note: it would be a little cheaper to use @2 here instead of an exprLocation call, but there are cases where that wouldn't produce the identical answer, so don't do it like that.) Back-patch to 9.5 where this feature was introduced. Discussion: https://postgr.es/m/CAMkU=1ykK+VhhcQ4Ky8KBo9FoaUJH3f3rDQB8TkTXi-ZsBRUkQ@mail.gmail.com