I have a big table, about 1 million rows, that I'm doing a simple "select *" over. The table is depressingly simple, basically a big VARCHAR for bit data that stores some serialized bytes. When I profile using VisualVM it seems that it is spending most of its time in
org.apache.derby.impl.store.raw.data.RAFContainer4.readFully If I remember correctly, this gets invoked something like 3000 times. Is there anything I can do to speed up iterating over this table? It is taking about 30s to iterate over the 1 million records, but I could have up to 25 million. It is an embedded db using 10.4, JDK 1.6.0_07, running on a Windows XP SP2 machine. I have page size set to the max, 32K, and the page case size set to 6000 pages. Is there anything I can do, or have I just run up against how fast Windows can read off of the disk? Brian
