Colin, On 1/6/07 8:37 PM, "Colin Taylor" <colin.taylor@xxxxxxxxx> wrote: > Hi there, we've partioned a table (using 8.2) by day due to the 50TB of data > (500k row size, 100G rows) we expect to store it in a year. > Our performance on inserts and selects against the master table is > disappointing, 10x slower (with ony 1 partition constraint) than we get by > going to the partioned table directly. Browsing the list I get the impression > this just a case of too many partitions? would be better off doing partitions > of partitions ? Can you post an "explain analyze" of your query here so we can see what's going on? - Luke