On 19 Dec 2009, at 9:10pm, Robert Citek wrote:

> However, times take noticeably longer when the dataset size is doubled
> to 2 MM records.  Querying+index (~160=136+20) took 4x longer than
> with the 1 MM dataset,

This is not surprising.  Twice as much data leading to 4x access time.

> although it was still 4x faster than querying
> without an index (~610s).

Okay, that's reasonable too.  But your basic timing is unexpectedly high, as 
you posted initially.

> Piping to the sort command was still the
> fastest at 12s, more than 13x faster than querying with an index

This seems to be significant but I don't know what it means.

Simon.
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