Re: [HACKERS] Multi CPU Queries - Feedback and/or suggestions wanted!

2008-10-29 Thread Julius Stroffek
Hi Simon, He is going to do some investigation in the methods and write down the possibilities and then he is going to implement something from that for PostgreSQL. When will this work be complete? We are days away from completing main work on 8.4, so you won't get much discussion on this

Re: [HACKERS] Multi CPU Queries - Feedback and/or suggestions wanted!

2008-10-21 Thread Julius Stroffek
Hi Jeffrey, thank you for the suggestion. Yes, they potentially can, we'll consider this. Julo Jeffrey Baker wrote: I don't see why multiple CPUs can't work on the same node of a plan. For instance, consider a node involving a scan with an expensive condition, like UTF-8 string length. If

[HACKERS] Multi CPU Queries - Feedback and/or suggestions wanted!

2008-10-20 Thread Julius Stroffek
Hi All, we would like to start some work on improving the performance of PostgreSQL in a multi-CPU environment. Dano Vojtek is student at the Faculty of Mathematics and Physics of Charles university in Prague (http://www.mff.cuni.cz) and he is going to cover this topic in his master thesis. He is

Re: [HACKERS] Proposal: Pluggable Optimizer Interface

2007-08-13 Thread Julius Stroffek
t way of configuring the hooks. However, this thinks are not mandatory for the functionality but are more user friendly. Thanks Julo Stefan Kaltenbrunner wrote: Julius Stroffek wrote: Hi All, Tomas Kovarik and I have presented at PGCon 2007 in Ottawa the ideas about other possible optimi

[HACKERS] Proposal: Pluggable Optimizer Interface

2007-08-13 Thread Julius Stroffek
. There is a proposal attached to this mail about the interface we would like to implement for switching between different optimizers. Please review it and provide a feedback to us. Thank You. Regards Julius Stroffek Proposal for Pluggable Optimizer Interface