On Thu, Dec 29, 2011 at 4:17 PM, Noah Misch n...@leadboat.com wrote:
We document that a polymorphic C-language function may identify the concrete
data type of each argument using calls to get_fn_expr_argtype(). That relies
on FmgrInfo.fn_expr, which only the executor sets. Calls of internal
We document that a polymorphic C-language function may identify the concrete
data type of each argument using calls to get_fn_expr_argtype(). That relies
on FmgrInfo.fn_expr, which only the executor sets. Calls of internal origin,
by way of {Direct,,Oid}FunctionCall*(), don't cons up an fn_expr,
