Dan, thanks for your reply.
When I changed the table definition to use the single index and
the multi-index I reloaded the data from scratch each time.
(I did the trials many times from scratch just to be sure and I
do get consistent results)
I also just did an optimize table as you suggest o
In the last episode (Nov 21), [EMAIL PROTECTED] said:
> Adding an irrelevant second column to an index instead of just a
> single column index gives an incredible speedup and I don't know why!
If you then remove the index, is it still fast? Maybe you are just
seeing the results of mysql rebuildin
