On Tue, 2007-10-09 at 15:09 -0500, Kevin Grittner wrote: > I have a situation where a query is running much slower than I would > expect. The ANALYZE showed that it is hashing some information which > is rarely needed. When I set enable_hashjoin = off for the > connection the query run in 1/1000 the time. Can you confirm the two queries give identical outputs? It isn't clear to me why the second sort is (never executed) in your second plan, which I would only expect to see for an inner merge join. Can you show the details for ControlRecord also. -- Simon Riggs 2ndQuadrant http://www.2ndQuadrant.com ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster
