=?windows-1250?Q?Miroslav_=8Aulc?= <[EMAIL PROTECTED]> writes: > seriously, I am far below this level of knowledge. But I can contribute > a test that (maybe) can help. I have rewritten the query so it JOINs the > varchar() fields (in fact all fields except the IDPK) at the last INNER > JOIN. Though there is one more JOIN, the query is more than 5 times > faster (1975.312 ms) :-)
That confirms my thought that passing the data up through multiple levels of join is what's killing us. I'll work on a solution. This will of course be even less back-patchable to 8.0.* than Ogawa's work, but hopefully it will fix the issue for 8.1. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq