Simon Riggs <simon@xxxxxxxxxxxxxxx> writes: > Say if cost of best plan >= N then recheck query for strangeness. If > anything found, re-plan query. Whatever makes you think that would be useful? The usual result of undetected duplicate WHERE clauses is an *underestimate* of runtime, not an overestimate (because it thinks too few tuples will be selected). regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster
