Adrian Klaver <adrian.klaver@xxxxxxxxxxx> writes: > On 9/12/19 6:44 AM, Tom Lane wrote: >> No, it's *exactly* as if that. UPDATE is an unreserved >> keyword so it's fully legitimate as a table name. > I am not following. Sure, the WITH thing works too. The point is that given "SELECT ... FROM (UPDATE ...)", there is a workable parse path where UPDATE is treated as a table name. So if you try to put an UPDATE command there, the syntax error isn't thrown till a couple tokens later, where the table-name syntax no longer matches. The OP's question was about why the error was thrown where it was, not about how to do this correctly. regards, tom lane
