Re: [HACKERS] [PERFORM] Avoiding tuple construction/deconstruction during joining

2005-03-20 Thread PFC
On my machine (Laptop with Pentium-M 1.6 GHz and 512MB DDR333) I get the following timings : Big Joins Query will all the fields and no order by (I just put a SELECT * in the first table) yielding about 6k rows : => 12136.338 ms Replacing the SELECT * from the table with many fields by ju

Re: [HACKERS] [PERFORM] Avoiding tuple construction/deconstruction during joining

2005-03-20 Thread PFC
I have asked him for the data and played with his queries, and obtained massive speedups with the following queries : http://boutiquenumerique.com/pf/miroslav/query.sql http://boutiquenumerique.com/pf/miroslav/query2.sql http://boutiquenumerique.com/pf/miroslav/materialize.sql Note that my opt