I just ran through a few tests with the v14 patch against 100GB of data from dbt3 and found a 30% improvement; 3.6 hours vs 5.3 hours. Just to give a few details, I only loaded data and started a COPY in parallel for each the data files: http://www.testing.osdl.org/projects/dbt3testing/results/fast_copy/
Here's a visual of my disk layout, for those familiar with the database schema: http://www.testing.osdl.org/projects/dbt3testing/results/fast_copy/layout-dev4-010-dbt3.html I have 6 arrays of fourteen 15k rpm drives in a split-bus configuration attached to a 4-way itanium2 via 6 compaq smartarray pci-x controllers. Let me know if you have any questions. Mark ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match