On Mon, Jul 16, 2012 at 3:59 PM, Mark Thornton <mthornton@optrak.com> wrote:
> 4. The most efficient way for the database itself to do the updates would be
> to first insert all the data in the table, and then update each index in
> turn having first sorted the inserted keys in the appropriate order for that
> index.
Actually, it should create a temporary index btree and merge[0] them.
Only worth if there are really a lot of rows.
[0] http://www.ccs.neu.edu/home/bradrui/index_files/parareorg.pdf